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E) thymus gland. Cells can respond to ________ hormone(s) at the same time. C) increase urine output to remove excess fluid If a diabetic patient received too much insulin, the low blood sugar could be corrected by injecting When the kidneys cannot respond to ADH, __________ results. B) decrease of insulin C) FSH. C) high blood glucose A) promotes bone growth. D) inhibition and secretion D) ACTH. C) bind to receptors in the nucleus of their target cells. WebHuman Calcitonin ELISA Kit is a single-wash 90-min SimpleStep ELISA for the quantitative measurement of Human Calcitonin in Urine, Primary . Therefore, the temporary blocking of osteoclasts by calcitonin reduces the amount of calcium that enters your blood. [33] However no further work on this potential application of calcitonin has been reported. D) is produced in the hypothalamus. Hormone release may be controlled by which of the following factors? zn=(1)n+100i. A) aldosterone. Mental and physical sluggishness and low body temperature may be signs of Calcitonin | You and Your Hormones from the Society for A) TSH B) little TSH. A) cortisol [13], The calcitonin receptor is a G protein-coupled receptor localized to osteoclasts[17] as well kidney and brain cells. B) TSH. C) cAMP is broken down. Webactivation and induces the anti-nociception effects of morphine. E) norcortisol and cortisol. C) cortisol. The suprarenal medulla produces Which of the following elements is necessary for the production of thyroid hormone? E) erythropoietin. Corrections? [6] It belongs to the calcitonin-like protein family. C) iron. It does this in two main ways: Your thyroid releases calcitonin based on the level of calcium in your blood. Both parathyroid hormone and calcitonin help regulate the level of calcium in your blood, which is necessary for several important bodily functions. D) thyroid Accelerating Breakthroughs & Improving Care. The signs and symptoms of Cushing's syndrom results from hypersecretion of _____ from the ______ _______. The condition known as hirsutism can result from too It is functionally an antagonist with PTH and Vitamin D3. B) ACTH Calcitonin works to control calcium and potassium levels. It does this by inhibiting the activity of the osteoclasts, the cells that break down bone. When the osteoclasts break down bone tissue, the calcium enters the bloodstream. By preventing the breakdown of bone, calcitonin lessens the amount of calcium in the blood. B) pineal gland. B) exposure to light stimulates production The normal level of plasma calcium is 9 - 11 mg/dL.About 99% calcium is Controlling the way your muscles contract. Stimulatory effects of CGRP are mediated by PKA and involve astrocyte activation. This can lead to bone destruction. Action of Thyroid Hormones in Blood. B) somatotropin. C) oxytocin. Try it now. Ch. 16 The Endocrine System (A&P 2) Flashcards | Quizlet D) glucagon. Calcitonin Slowing down or speeding up your heart rate. Calcium ions serve as messengers, often in combination with the intracellular protein. Calcitionin and PTH act as antagonist hormones with reguard to levels of serum calcium ions. B) epinephrine and norepinephrine. C) increased water retention. E) hepatic, The hypothalamus acts as both a neural and a(n) ________ organ. A) TSH. A rise in angiotensin II levels would result in all of the following, except Glucocorticoids have the following effects: 44) The primary source of estrogens after menopause is the: 45) The interstitial cells of the testes are an important target for: 46) The role of somatostatin from the pancreas is to: 47) An increase in glycogenolysis by the liver is an important effect of: 48) The primary stimulus for the release of insulin is: 55. C) PTH A) testosterone. This condition often results from overactivity in the thyroid gland, or hyperthyroidism. A) dwarfism. E) gonadotropins. Calcitonin inhibits (blocks) the activity of osteoclasts, which are cells that break down bone. Automatically remove your image background. Calcitonin | Definition, Production, & Function | Britannica The body appears to function normally, even with high or low levels of this thyroid hormone. C) MSH. B) parathyroid hormone. Calcium is the most abundant mineral in the body. WebIn Patients With CKDat Risk of Progression, With or Without T2D. All of the following are true of the nervous system, except. Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. C) ADH and oxytocin. B) TSH and FSH. D) a large excretion of urine occurs. E) ADH. A) synephrine and neosynephrine. WebNCI's Dictionary of Cancer Terms provides easy-to-understand definitions for words and phrases related to cancer and medicine. B) TSH. Inhibit secretion of insulin and glucagon. D) extension B) increased heart rate C) TSH. B) mineralocorticoids D) iron C) FSH. Calcitonin plays a significant role in treating complex regional pain syndrome (CRPS) and other painful conditions including rheumatoid arthritis fracture, spinal metastasis, and bone tumors [ 8, 9 ]. A) in lysosomes B) calcitonin and parathyroid hormone Endocrine System Study Guide Flashcards | Quizlet B) glucocorticoids. E) peptide P. The exocrine portion of the pancreas produces A) contain four types of endocrine cells. The C-cells in your thyroid (parafollicular cells) make and secrete calcitonin. B) ACTH. [36], Calcitonin is a polypeptide hormone of 32 amino acids, with a molecular weight of 3454.93 daltons. All rights reserved. C) increased pumping effectiveness of the heart. B) prostaglandins. If my thyroid hormone levels are too high or too low - What are the treatment options? Calcitonin is a hormone that the C-cells in the thyroid gland produce and release. E) an increase in urine output. Follicle cells in the ovary secrete ________ when stimulated by FSH. And it work antagonist to PTH hormone. A) androgens. E) prolactin. D) hepatic In the past, healthcare providers prescribed synthetic (manufactured) forms of calcitonin as medicine to treat Pagets disease of the bone, hypercalcemia and osteoporosis. E) blood. This antibody recognises an epitope within the cytoplasmic domain that is common to both C1a and C1b rat isoforms. B) stimulate kidney cells to secrete renin When adenyl cyclase is activated, D) lungs. B) excessive thirst is shown. E) gap synaptic junctions. D) fatty acid metabolism by muscle cells. Which of the following hormones may lead to acromegaly if hypersecreted after closure of the epiphyseal plates? Factors which can influence calcitonin levels include nutrition, age, gender and the presence of certain diseases. High calcitonin levels may indicate an issue with the thyroid gland. If calcitonin levels are elevated it may be an indication of medullary thyroid cancer, the third most common form of thyroid cancer, which begins in the c-cells Hormones can operate on the ________ level of organization. Peak plasma concentrations are attained within the first hour of administration. The pharmacological properties of the synthetic and recombinant peptides have been demonstrated to be qualitatively and quantitatively equivalent. An increase in blood glucose and an anti-inflammatory effect are important effects of _________. E) All of the answers are correct. D) gonads. Calcitonin The stimulus for release of parathyroid hormone is _________. For example, it inhibits the activity of the osteoclasts in bone tissue, thereby preventing the resorption (breakdown) of bone, and inhibits the reabsorption of calcium by the cells of the kidney, resulting in increased calcium excretion in the urine. D) calcitriol How can I regain proper levels of thyroxine and other thyroid hormones? This is why many doctors will test T4 levels along with the more common T3 levels when testing for thyroid disorders. C) renal E ) decrease blood calcium . C) loss of melatonin secretion (Show the details of your work. B) glucocorticoids. [citation needed], Calcitonin was first purified in 1962 by Douglas Harold Copp and B. Cheney at the University of British Columbia, Canada. A) stimulate osteoclast activity. D) somatotropin. Could my symptoms be due to thyroid hormone abnormalities? When the osteoclasts break down bone tissue, the calcium enters the bloodstream. E) epinephrine. E) melatonin. Prognosis of MTC depends on early detection and treatment. B) has two capillary plexuses connected by short veins. Bioavailability following subcutaneous and intramuscular injection in humans is high and similar for the two routes of administration (71% and 66%, respectively). A) fluorine. E) peptide P. The delta cells of the pancreatic islets produce B) two The metabolites lack the specific biological activity of calcitonin. a. However, PTH seems to have a more important role in regulating your blood calcium levels than calcitonin. C) PRL Salmon calcitonin is rapidly absorbed and eliminated. [22] Salmon calcitonin is used for the treatment of: It has been investigated as a possible non-operative treatment for spinal stenosis. Let us know if you have suggestions to improve this article (requires login). E) prolonged. Liver The primary target for glucagon is the ________. Web31) A primary effect of mineralocorticoids is to promote: A) increased urine production. Alpha cells are to ________ as beta cells are to ________. However, the calcitonin levels do not cause the cancer. Find its limit points. A) glycosuria C) blood-glucose concentration Calcitonin is a unique hormone, because its importance is not well known. Cholecalciferol is synthesized within the There doesnt seem to be any effect on your body as a result of having too little calcitonin. D) produce their own hormones. The main action of antidiuretic hormone is: C) heart. In fact, patients who have had their thyroids removed will have virtually no calcitonin levels, but they show no resulting symptoms. B) cortisol A) renin. D) atrial natriuretic peptide. Calcitonin (Miacalcin) Uses & Side Effects Secretion of this hormone is controlled directly by the bloods calcium levels. A 200200 \Omega200 resistor is in series with a 0.100H0.100 \mathrm{H}0.100H inductor and a 0.500F0.500 \mu \mathrm{F}0.500F capacitor. E) heart. E) GH. C) suprarenal glands. Which of the following organs contain target cells for oxytocin? Calcitonin - vivo.colostate.edu Please refer to the appropriate style manual or other sources if you have any questions. FARXIGA is the only SGLT2i approved to help delay the worsening of CKD in patients at risk of progression, with and without T2D. You will need a series of blood tests to determine whether or not your thyroid hormone levels are where they should be. The thyroid gland is located A) under the sternum. Your thyroid is a small, butterfly-shaped gland located at the front of your neck under your skin. C) increased levels of melanocyte-stimulating hormone. Once in the bloodstream, thyroxine travels to the organs, like the liver and kidneys, where it is converted to its active form of triiodothyronine. C) ADH. E) are in the blood. [19] Dr. Copp named the discovered hormone calcitonin because of its role in 'maintaining normal calcium tone'.[18]. (Hint: O2\mathrm{O}_2O2 is a strong-field ligand; see the inset on p. E) angiotensin. The thyroid gland releases triiodothyronine (T3) and thyroxine (T4). Last reviewed by a Cleveland Clinic medical professional on 02/03/2022. E) All of the answers are correct. B) cretinism. The primary stimulus for release of cortisol and corticosterone is: 34) An increase in blood glucose and an anti inflammatory effect are important effects of: 35) The stimulus for release of parathyroid hormone is: 37) The islets of Langerhans are the endocrine portion of the: 38) The only hormone that promotes anabolism of glycogen, fats, and proteins is: 39) The primary target for glucagon is the: 40) Sympathetic autonomic stimulation increases: 41) Increased heart rate and force of contraction are effects of: 43. Increased levels of the hormone ________ will lead to increased levels of calcium ion in the blood. The ________ pituitary produces and releases its own hormones, while the __________ pituitary stores and releases hormones produced by the ___________. Destruction of the supraoptic nucleus of the hypothalamus would have which result? Always reference the labs normal range on your blood test report. B) ACTH. D) levels of growth hormone decrease. Calcitonin Salmon Nasal Spray: MedlinePlus Drug Information The zona reticularis of the suprarenal cortex produces Calcitonin: What It Is, Function & Side Effects - Cleveland Chronic migraine is one of the chronic primary headache disorders, which belong to chronic primary pain syndromes as per the new concept of multiple parenting. When a catecholamine or peptide hormone binds to receptors on the surface of a cell, the A) hyperthyroidism. B) cell membrane becomes depolarized. The beta cells of the pancreatic islets produce C) decreased levels of sodium ion in the blood. A) the rate of glucose synthesis by the liver. D) gating of ion channels. In other words, it encourages calcium loss through your kidneys. C) somatostatin. The hypothalamus regulates secretion of hormones from the pituitary gland. Extracellular membrane receptors are used by which of the following types of hormones? C) calcitonin. D) ADH. E) are lipids. The primary target(s) of insulin is/are trouble sleeping. For 100 years, the Endocrine Society has been at the forefront of hormone science and public health. Steroids include the following EXCEPT: 9. E) glucocorticoids, Hormones from the adrenal cortex that regulate electrolyte balance are: A) parathyroid hormone. 784.). E) All of the answers are correct. A) are proteins. Historically calcitonin has also been called thyrocalcitonin. Thyroxine and calcitonin are secreted by the It does this by inhibiting the activity of the osteoclasts, the cells that break down bone. D) thyroxine. Calcitonin also has significantly impacted molecular biology, as the gene encoding calcitonin was the first gene discovered in mammalian cells to be alternatively spliced, now known to be a ubiquitous mechanism in eukaryotes.[20][21]. B) cardiovascular [30] Salmon calcitonin does not cross the placental barrier. A) elevated blood pressure. Calcitonin works to control calcium and potassium levels. Helping your blood clot if youre bleeding. The tumor is causing her to have a deep voice, to grow extensive body hair, and to stop menstruating. A) LH. C) peripheral cells take up less glucose. Primary { }^2, 50 \mathrm{~F}2lbf/in.2,50F, b. A) androgens. unusual tiredness or weakness. It may even be used on biopsy samples from suspicious lesions (e.g., lymph nodes that are swollen) to establish whether they are metastases of the original cancer. Theyre there to help you. B) promotes muscle growth. Calcitonin decreases blood calcium levels by inhibiting osteoclasts, stimulating osteoblasts, C) triggers prostate gland contraction. D) activation of a specific gene D) PTH. The hormone that does the opposite of calcitonin is All of the following are true of steroid hormones, except This may be due to autoimmune conditions, such as. The posterior pituitary gland secretes B) ductus deferens All target cells B) glucagon is released. WebWe evaluated the effect of calcitonin on bone metabolism and mineral density in 25 women with primary biliary cirrhosis and severe osteopenia. D) LH. Amine hormones include the following: 10. C) kidneys. The link between a first messenger and a second messenger in a cell that responds to peptide hormones is usually C) secretes melatonin. D) parathyroid hormone. A) sodium E) delay urination. E) increased blood volume. B) parathyroid glands; calcitonin D) cyclic AMP B) parathormone. D) secrete hormones into the pancreatic duct. Hypercalcaemia is typically discovered during routine blood testing. In the blood, T4 and T3 are partially bound to thyroxine-binding globulin (TBG), transthyretin, and albumin. A) cortisol. HELP PRESERVE kidney function* and PROTECT against ESKD, CV death, and hospitalization for heart failure with FARXIGA. A) prostate Salmon calcitonin resembles human calcitonin, but is more active. CH 18 ex 2 Flashcards | Quizlet calcitonin-salmon Our editors will review what youve submitted and determine whether to revise the article. Synthetic analogues of calcitonin are of particular interest in the treatment of osteoporosis, a disease characterized by the thinning of bones that arises from increased bone resorption or decreased bone formation. E) FSH. A) blood level of an ion-like potassium C) in the lumen of the thyroid follicle When bone is A) FSH. The volume of a 16-g sample of oxygen is 11.2L11.2 \mathrm{~L}11.2L at 273K273 \mathrm{~K}273K and 1.00atm1.00 \mathrm{~atm}1.00atm. It opposes the action of the parathyroid hormone, helping to regulate the bloods calcium and phosphate levels. Inadequate iodine in the diet may lead to In the bones, the hormone triggers the release of calcium stores from the bones to the blood. E) in apical microvilli, TSH plays a key role in the ________ of thyroid hormones. Hypoglycermia is a stimulus for release of, 16. calcitonin Consider asking your healthcare provider: Thyroxine is a hormone the thyroid gland secretes into the bloodstream. This condition often results from overactivity in the thyroid gland, or, Hypothyroidism is a condition that occurs if the thyroid gland does not produce enough of the thyroid hormone. E) All cells in the body, especially cartilage, bone, and muscle cells. Conventional long-term toxicity, reproduction, mutagenicity, and carcinogenicity studies have been performed in laboratory animals. The throid gland normally contains most of the iodide in the body. A malignancy of the parafollicular cells, i.e. Suckling is an important stimulus for release of _______ for the ________ pituitary. What glands are these and which hormone is lacking? D) cell becomes inactive. Hypothyroidism can also occur in pituitary dysfunction, such as pituitary tumors or inflammation. unusual weight gain or loss. A) insulin D) diabetes insipidus. C) liver cells. B) oxytocin. Symptoms may include tiredness, mental depression, feeling cold, weight gain, dry skin, constipation, and menstrual irregularities. For people assigned female at birth: 0 to 5.1 pg/mL. After passage through the intestine, the delivery agent dissociates from the peptide. C) mammary glands B) oxytocin; mammotropin The referral is updated daily with clinicians who are accepting new patients. A) 8-10 Ac1 units Primary By contrast, patients with medullary thyroid carcinoma, a cancer of the parafollicular cells that secretes large quantities of calcitonin, have high serum calcitonin concentrations but normal serum calcium concentrations. B) ADH. D) androgens and progesterone. The ICU nurse administered a medicine that mimics one of the following hormones. B) are derived from cholesterol. D) increased urine production. C) FSH. A) TSH. Also, calcitonin inhibits food intake in rats and monkeys, and may have CNS action involving the regulation of feeding and appetite. [31] C) inhibits T3 and T4 secretion E) somatotropins. After brain surgery, a patient receiving postoperative care in an intensive care unit began to pass large volumes of very dilute urine. B) increased volume of urine formation. Raising or lowering your body temperature. A) promotes uterine contractions. WebCalcitonin is secreted in response to hypercalcemia and also to a calcium-rich meal. A) FSH. A) cAMP. D) thyroid-stimulating hormone. D) glucagon E) cortisol, The term used to describe excess production of urine is Updates? Intranasal dosage (calcitonin-salmon nasal spray 200 International Units/spray) Adult Postmenopausal Females B) aldosterone. Hormones are chemicals that coordinate different functions in your body by carrying messages through your blood to your organs, muscles and other tissues. E) GHIH and GHRH. D) 9 B) cyclic nucleotides are formed. Subcutaneous injections of calcitonin in patients with mania resulted in significant decreases in irritability, euphoria and hyperactivity and hence calcitonin holds promise for treating bipolar disorder. E) Addison's disease. Is the following sequence z1,z2,,zn,z_1, z_2, \cdots, z_n, \cdotsz1,z2,,zn, bounded? E) MSH. Calcium is an important mineral mainly found in bone and teeth. has the opposite effect of calcitonin. Aldosterone: is a mineralocorticoid. Aldosterone: increases blood sodium levels. Cortisol: is made in the middle zone of the adrenal cortex, is a glucocorticoid and has an anti-immunity effect. Androgens, which are similar to testosterone, are: B) increased retention of sodium ions at the kidney. D) much androgen production. By preventing the breakdown of bone, calcitonin lessens the amount of calcium in the blood. Symptoms may include tiredness, mental depression, feeling cold, weight gain, dry skin, constipation, and menstrual irregularities. A) ANP. Side effects associated with nasally administered calcitonin are mild and of low incidence [ 10, 11 ]. [12] leading to marked hypocalcemia. [35], Increased levels of calcitonin have also been reported for various other conditions. E) diabetes insipidis. E) vascular. B) indirect osmotic control. D) STH. B) GHIH. C) increases the level of sodium ions in the blood. ________ are chemical messengers that are released in one tissue and transported in the bloodstream to alter the activities of specific cells in other tissues. calcitonin WebThe primary effect of calcitonin is to A) increase blood glucose. 2) A chemical grouping of hormones derived from arachidonic acid is the: 3) Which of the following hormones works by direct gene activation? The C cells of the thyroid gland produce B) calcitonin. calcitonin Each of the following is true of the pineal gland, except that it C) thyroid hormone. C) eicosanoids E) hormone is transported to the nucleus where it alters the activity of DNA. D) ATP is produced. Our physician referral directory is comprised of over 6,500 members of the Society. D) produced by pinealocytes D) cortisone. B) inhibit osteoblast activity. B) glucocorticoids. A) hypothyroidism. A) CRF and GnRH. C) LH. A) thyroid A) insulin C) body B) ACTH. B) erythropoietin. A) kidneys. D) increased urine release. C) excretion of sodium ions by the kidney. A) increase of insulin Calcitonin had no effect on the initial dendrite formation. Hormones secreted from the posterior pituitary gland are synthesized by the _______. A) lipid reserves are mobilized. A) blood glucose levels are very high. C) osteoblasts B) glucagon. E) ACTH. D) amino acid derivatives. The pituitary hormone that causes the kidney to reduce water loss is Calcitonin is a hormone that your thyroid gland makes and releases to help regulate calcium levels in your blood by decreasing it. Your healthcare provider can check your calcitonin levels through a blood test. The difference is how they do so and how much they affect your calcium levels. WebThe hormone calcitonin, which is produced by the parafollicular or C cells of the thyroid, has the opposite effect on blood calcium levels as does PTH. E) parathyroid hormone, Which of the following directly regulates the secretion of insulin? The pancreatic hormone that causes blood sugar to enter its target cells is Calcitriol also prevents calcium loss from your kidneys. D) glucocorticoids. Calcitonin E) renin. In the blood, T4 and T3 are partially bound to thyroxine-binding globulin (TBG), transthyretin, and albumin. WebThe treatment of cortical neurons with CGRP promoted the formation of primary dendrites of non-GABAergic neurons. Cleveland Clinic is a non-profit academic medical center. D) epinephrine. At present, it is produced either by recombinant DNA technology or by chemical peptide synthesis. For 100 years, the Endocrine Society has been at the forefront of hormone science and public health. Sometimes high calcitonin levels can point to a rare type of medullary thyroid cancer. These categories include E) androstenedione. However, with the introduction of newer drugs, such as bisphosphonates, providers seldom use this form of calcitonin for treatment. D) inhibin Skip to main content. In many ways, calcitonin counteracts parathyroid hormone (PTH) and vitamin D. Only a very small fraction of the circulating hormone is freeT4 0.03% and T3 0.3%. A) the loss of axillary and pubic hair. D) growth hormone This tumor probably involves cells of the E) activation of mitochondria, Which of the following is not an action of TSH? B) epinephrine Therefore, the metabolic clearance is much lower in patients with end-stage kidney failure than in healthy subjects. C) growth hormone. A) TSH. WebCalcitonin may be considered for women who can not or will not take more effective agents; do not prescribe in early menopause as benefit/efficacy has not been observed within the first 5 years of menopause onset. Higher blood levels may be associated with increased incidence of nausea, vomiting, and secretory diarrhea. of calcitonin WebHormones and most of the tissues (mainly glands) that create and release them make up your endocrine system. D) aldosterone Inability of the pancreas to produce insulin results in B) epinephrine Using the mentioned equation for interpolation, determine the viscosity at 60C60^{\circ} \mathrm{C}60C. Whereas parathyroid hormone increases blood calcium levels, calcitonin decreases blood calcium levels. A) is a component of the epithalamus. B) 5 Which of the following hormones works by direct gene activation? If youre experiencing symptoms of either of these conditions or have questions about your risk of getting them, contact your healthcare provider. D) increase blood calcium. A) polyuria. T3 helps maintain muscle control, brain function and development, heart and digestive functions. Calcitonin WebNOTES parathyroid hormone, calcitonin and vitamin calcium and phosphate regulation calcium the normal value of calcium is of hypercalcemia of calcium Ch 6 Communication, Integration, and Homeosta, David N. Shier, Jackie L. Butler, Ricki Lewis, Human Anatomy and Physiology Laboratory Manual, Elaine N. Marieb, Lori A. Smith, Susan J. Mitchell. D) increased levels of gonadotrophins. Advertising on our site helps support our mission. E) tropic, Which of the following substances activates protein kinases and thus acts as a second messenger? Calcitonin is a hormone secreted by your thyroid. The C-cells in your thyroid gland produce calcitonin. A) glucagon; insulin B) decrease blood glucose. D) a sharp increase in motivation and energy. The pancreatic islets (islets of Langerhans) Calcitonin is a hormone secreted by your thyroid. E) are transported in the blood dissolved in the plasma. What could have caused my thyroid to stop functioning properly? The zona glomerulosa of the suprarenal cortex produces D) thyroid glands; levothyroxine \end{array} A) stimulates the formation of white blood cells. D) hormones to regulate sodium ion concentration. WebExposure of T 47D human breast cancer cells to salmon calcitonin (sCT) resulted in a reduction of binding capacity for [ 125 I]iodo-sCT in washed cells. Calcitonin has clinically been used for metabolic bone disorders for more than 50 years. B) decreased mental alertness. The parathyroid glands produce a hormone that B) FSH. Calcitonin decreases calcium levels by blocking the breakdown of bone calcium and by preventing your kidneys from reabsorbing calcium. C) aldosterones. E) hepatic, A simple endocrine reflex involves ________ hormone(s). trembling or shaking of the legs, arms, hands or feet trouble sleeping unusual tiredness or weakness unusual weight gain or loss Some side effects may occur that usually do not need medical attention. Identify the incorrect step. D) stimulates pinocytosis of colloid by thyroid follicle cells C) cortisol E) levels of insulin decrease. A) TSH. D) hypothalamus. WebCalcitonin is a hormone secreted by your thyroid. E) inhibition of aldosterone.