Description : Thyroid stimulating hormone is a dimer. The α-subunits of TSH, LH, FSH are identical. Thus the biological specificity must therefore be β subunit in which the number of amino acids is (A) 78 (B) 112 (C) 130 (D) 199
Last Answer : Answer : B
Description : Gonadotropin releasing hormone (GnRH) stimulates the release of: a) ACTH. b) Growth hormone. c) Leutinising Hormone (LH). d) Thyroid stimulating hormone (TSH). e) Opiate peptides.
Last Answer : c) Leutinising Hormone (LH).
Description : Which is an example of negative feedback? A) Nursing action stimulates the hypothalamus to release oxytocin that triggers mammary gland milk production. B) When the blood becomes dilute, ADH ... produce sperm or eggs. E) TRH stimulates the anterior pituitary to release thyroid-stimulating hormone.
Last Answer : B) When the blood becomes dilute, ADH is no longer released from the hypothalamus
Description : Thyroid hormone: a. increases the absorption of carbohydrate from the intestine b. exerts a negative feedback action on TSH production c. increases the concentration of 2,3-DPG within the red blood cells d. all above
Last Answer : all above
Description : The part of the brain controlling the anterior pituitary gland secretions is the A) medulla. B) thalamus. C) cerebral cortex. D) hypothalamus. E) cerebellum. Answer: D ... B) antidiuretic hormone C) gonadotropic hormones D) thyroid-stimulating hormone E) adrenocorticotropic hormone
Last Answer : B) thalamus.
Description : All the following statements about thyrotropin releasing hormone are true except (A) It is secreted by hypothalamus (B) It is a pentapeptide (C) It increases the secretion of TSH (D) Its secretion is inhibited by high level of T3 and T4 in blood
Description : All the following statements about TSH are true except (A) It is a tropic hormone (B) It acts on para-follicular cells of thyroid glands (C) Its receptors are membrane-bound (D) Its second messenger is cyclic AMP
Description : : A _____ is a cytokine that induces fever by stimulating the ______. a. pyrogen, hypothalamus b. pyogen, thalamus c. defensin, thyroid d. perforin, pituitary
Last Answer : a. pyrogen, hypothalamus
Description : A hormone synthesised in the hypothalamus is (A) Melatonin (B) Melanocyte stimulating hormone (C) Vasopressin (D) Prolactin
Last Answer : Answer : C
Description : Select the hormone INCORRECTLY paired with its target. a) TSH - thyroid gland b) ACTH - anterior pituitary c) LH - ovary or testis d) MSH - melanocytes (pron: meh-lan-o-cite)
Last Answer : ANSWER: D -- MSH - MELANOCYTES
Description : What is the role of thyroid stimulating hormone? -Biology
Last Answer : answer:
Description : The leyding cell activity is controlled by (A) Intestitial cell stimulating hormone (B) Adernocortex stimulating hormone (C) Thyroid stimulating hormone (D) Melanocyte stimulating harmone
Last Answer : Answer : A
Description : Which hormone causes acromegaly if present in abnormally high concentrations in an adult? A) growth hormone B) antidiuretic hormone C) gonadotropic hormones D) thyroid-stimulating hormone E) adrenocorticotropic hormone
Last Answer : A) growth hormone
Description : Which hormone stimulates the production of estrogen and progesterone? A) growth hormone B) antidiuretic hormone C) gonadotropic hormones D) thyroid-stimulating hormone E) adrenocorticotropic hormone
Last Answer : C) gonadotropic hormones
Description : Which hormone stimulates the production of cortisol? A) growth hormone B) antidiuretic hormone C) gonadotropic hormones D) thyroid-stimulating hormone E) adrenocorticotropic hormone
Last Answer : E) adrenocorticotropic hormone
Description : Which pituitary hormone is responsible for enhancing the arterial blood pressure by causing the narrowing of arterioles ?
Last Answer : Which pituitary hormone is responsible for enhancing the arterial blood pressure by causing the narrowing of ... ACTH B. Somatotropin C. ADH D. LTH
Description : A hormone which cannot cross the blood brain barrier is (A) Epinephrine (B) Aldosterone (C) ACTH (D) TSH
Description : High level of T3 and T4 and low TSH in serum indicates (A) Hyperthyroidism of pituitary origin (B) Hypothyroidism of pituitary origin (C) Hyperthyroidism of thyroid origin (D) Hypothyroidism of thyroid origin
Description : Administration of TSH increases serum T3 and T4 in (A) Hyperthyroidism of pituitary origin (B) Hyperthyroidism of thyroid origin (C) Hypothyroidism of pituitary origin (D) Hypothyroidism of thyroid origin
Description : Which of the following is the most common cause of Hypothyroidism in iodine sufficient area? Options: 1) Iatrogenic hypothyroidism 2) Post-partum thyroiditis 3) Autoimmune thyroiditis 4) Thyroid aplasia
Last Answer : Correct Answer: 3) Autoimmune thyroiditis
Description : A 20 yr. old female patient presents with pain in thyroid region of the neck since few days. She gives recent history of mumps. On palpation thyroid is tender and her thyroid function ... 1) de Quervain's thyroiditis 2) Silent thyroiditis 3) Primary thyrotoxicosis 4) Hashimoto's thyroiditis
Last Answer : Correct Answer: 1) de Quervain’s thyroiditis
Description : ntithyroid drugs exert the following action: A. Inhibit thyroxine synthesis B. Block the action of thyroxine on pituitary C. Block the action of TSH on thyroid D. Block the action of thyroxine on peripheral tissues
Last Answer : A. Inhibit thyroxine synthesis
Description : Antithyroid drugs exert the following action: A. Inhibit thyroxine synthesis B. Block the action of thyroxine on pituitary C. Block the action of TSH on thyroid D. Block the action of thyroxine on peripheral tissues
Last Answer : . Inhibit thyroxine synthesis
Description : Thyroxine therapy is indicated in the following conditions except: A. Euthyroid status with raised TSH level B. Diffuse nontoxic goiter C. Nonfunctional thyroid nodule D. Benign functioning thyroid nodule
Last Answer : C. Nonfunctional thyroid nodule
Description : Serum TSH levels are high in most cases of: A. Myxoedema B. Grave’s disease C. Carcinoma thyroid D. Toxic nodular goiter
Last Answer : A. Increases vascularity
Description : .19 Serum TSH levels are high in most cases of: A. Myxoedema B. Grave’s disease C. Carcinoma thyroid D. Toxic nodular goiter
Last Answer : A. Myxoedema
Description : Rank the following laboratory tests and procedures in terms of their relative value to a 65-year-old woman who is to undergo elective resection of a sigmoid cancer. A. Carcinoembryonic antigen (CEA). B. ... Arterial blood oxygen tension (PaO 2) on room air. G. Serum sodium concentration (Na+).
Last Answer : Answer: CDFEBAG DISCUSSION: The most important test by far is the electrocardiogram, with its capacity to indicate signs of occult heart disease. The second most important evaluation is the hemoglobin ... for resection of the colon is always normal and would be of least value among these tests
Description : TSH hormone biochemically is a (A) Protein (B) Fat (C) Glycoprotein (D) Carbohydrate 232 MCQs IN BIOCHEMISTRY
Description : Which one of the following is not liberated by the adenohypophysis? (A) Growth hormone (B) TSH (C) ACTH (D) Gonadotropin
Last Answer : Answer : D
Description : Acromegaly results from overproduction of (A) ACTH during childhood (B) TSH during adult life (C) Growth hormone during childhood (D) Growth hormone during adult life HORMONE METABOLISM 219
Description : A young child presents with respiratory distress, worsening over 2 days. Blood gases show a pH of 7.25, a PCO2 of 7.5kPa, a PO2 of 8.5kPa, and a base excess of -4. Which of the ... required. 4) Results are consistent with late severe asthma. 5) Bicarbonate may be necessary to correct the acidosis.
Last Answer : Answers-4 In interpreting blood gas results, the following sequence may be useful: Inspect the pH: Is it low, normal or high? Inspect the CO2: Is it low, normal or high? Inspect the PO2: Is ... excess and normal pH. Bicarbonate is usually only considered if the base deficit exceeds about -8 or 00.
Description : The figure shows blood circulation in humans with labels A to D. Select the option which gives correct identification of label and functions of the part. (a) B - Capillary-Thin without muscle layer and ... blood to heart, pO2 = 95 mmHg (d) A - Artery-Thick walled and blood flows evenly
Last Answer : (c) D - Pulmonary vein-Takes oxygenated blood to heart, pO2 = 95 mmHg
Description : The given figure shows schematic plan of blood circulation in humans with labels A to D. Identify the label and give its functions. (a) C - Vena cava - Takes blood from body parts to right auricle, pCO2 = 45 ... 60 mm Hg (d) B - Pulmonary artery - Takes blood from heart to lungs, pO2 = 90 mm Hg
Last Answer : (a) C - Vena cava - Takes blood from body parts to right auricle, pCO2 = 45 mm Hg
Description : Secretion of thyroid hormones is regulated by (A) Hypothalamus (B) Anterior pituitary (C) Feedback regulation (D) All of these 220 MCQs IN BIOCHEMISTRY
Description : Somatotropin is secreted by (A) Hypothalamus (B) Anterior pituitary (C) Posterior pituitary (D) Thyroid gland
Description : The gland which maintains body temperature is the _____. A. Pituitary gland B. Thyroid gland C. Adrenals D. Hypothalamus
Last Answer : ANSWER: B
Description : Which gland in the human body regulates the secretion of hormones from the pituitaiy gland? (1) Thymus gland (2) Thyroid gland (3) Adrenal gland (4) Hypothalamus gland
Last Answer : (4) Hypothalamus gland Explanation: Hormone secretion from the anterior pituitary gland is regulated by releasing hormones secreted by the hypothalamus. Neuroendocrine cells in the hypothalamus ... release substances into small blood vessels that travel directly to the anterior pituitary gland
Description : The body temperature is regulated by (1) Pituitory gland (2) Hypothalamus (3) Pineal gland (4) Thyroid gland
Last Answer : (2) Hypothalamus Explanation: Hypothalamus is a portion of the brain that contains a number of small nuclei with a variety of functions. One of the most important functions of the ... hormones. The hypothalamus controls body temperature, hunger, thirst, fatigue, sleep, and circadian cycles.
Description : Which is the gland that holds the body's thermostat? (1) Pineal (2) Pituitary (3) Thyroid (4) Hypothalamus
Last Answer : (4) Hypothalamus Explanation: The body keeps its core temperature constant at about 37 C by physiological adjustments controlled by the hypothalamus (Thermostat Center) where there ... Thermoreceptors) and from internal structures (Central Thermoreceptors), which include the hypothalamus itself.
Description : The controlling or master gland(s) of the body is(are) the A) adrenal medulla and cortex. B) testes and ovaries. C) hypothalamus and anterior pituitary. D) pancreas. E) thyroid and parathyroid.
Last Answer : C) hypothalamus and anterior pituitary.
Description : Which of the following endocrine glands does NOT produce its own hormones but stores hormones produced by the hypothalamus? A) thyroid B) adrenal cortex C) adrenal medulla D) posterior pituitary E) anterior pituitary
Last Answer : D) posterior pituitary
Description : Which gland in the human body regulates the secretion of hormones from the pituitary gland? (1) Thymus gland (2) Thyroid gland (3) Adrenal gland (4) Hypothalamus gland
Last Answer : Hypothalamus gland
Description : The body temperature is regulated by— (1) Pituitory gland (2) Hypothalamus (3) Pineal gland (4) Thyroid gland
Last Answer : Hypothalamus
Description : Which is the gland that holds the body’s thermostat? (1) Pineal (2) Pituitary (3) Thyroid (4) Hypothalamus
Description : Name the non-iodinized hormone secreted by paraforllicular cells of thyroid.
Last Answer : Name the non-iodinized hormone secreted by paraforllicular cells of thyroid. A. Calcitonin B. Oxytocin C. Vasopression D. Gonadotropin
Description : Parathyroid hormone (PTH) is synthesised in (A) Chief cells of parathyroid glands (B) Oxyphil cells of parathyroid glands (C) Para follicular cells of thyroid glands (D) Follicular cells of thyroid gland
Description : Calcitonin: a. is a steroid hormone b. is produced by the parafollicular cells within the thyroid glands c. is increased in the presence of hypercalcaemia d. inhibits osteoclast activit
Last Answer : inhibits osteoclast activit
Description : The following are true about the thyroid hormone a. iodide ions enter the follicle cells by passive diffusion b .T4 and T3 bind to the receptors in nuclei c. thyroxine, once ... thyroglobulin until released d. a greater proportion of tri-iodothyronine is formed when iodine is deficient
Last Answer : T4 and T3 bind to the receptors in nuclei