Endocrine glands and hormones, mechanism of action

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Which of the following hormones released from the pituitary is actually synthesized in the hypothalamus ? Answer: 2. Anti-diuretic hormone (ADH) Key idea: Posterior pituitary hormones are made in the hypothalamus. ADH (and oxytocin) is synthesise... Endocrine glands and hormones, mechanism of action 1 answer
Match List - I with List - II.List - I: A. Progesterone B. Relaxin C. Melanocyte stimulating hormone D. CatecholaminesList - II: I. Pars intermedia II. Ovary III. Adrenal Medulla IV. Corpus luteumChoose the correct answer from the options given below… Answer: 1. A-IV, B-II, C-I, D-III Key idea: Match each hormone to its source. Progesterone: corpus luteum (A-IV). Relaxin: ovary (B-II). MSH... Endocrine glands and hormones, mechanism of action 1 answer
Consider the following statements regarding function of adrenal medullary hormones :A. It causes pupilary constrictionB. It is a hyperglycemic hormoneC. It causes piloerectionD. It increases strength of heart contractionChoose the correct answer from… Answer: 2. B, C and D Only Key idea: Adrenaline and noradrenaline prepare the body for fight or flight. A: wrong. They cause pupil dilation,... Endocrine glands and hormones, mechanism of action 1 answer
Match List - I with List - II.List - I: A. Heart B. Kidney C. Gastro-intestinal tract D. Adrenal CortexList - II: I. Erythropoietin II. Aldosterone III. Atrial natriuretic factor IV. SecretinChoose the correct answer from the options given below : Answer: 4. A-III, B-I, C-IV, D-II Key idea: Non-endocrine organs also secrete hormones. Heart: atrial natriuretic factor (A-III). Kidney: er... Endocrine glands and hormones, mechanism of action 1 answer
Which of the following is not a steroid hormone? Answer: 1. Glucagon Key idea: steroid hormones are made from cholesterol. Cortisol, testosterone and progesterone are steroids. Glucagon, fr... Endocrine glands and hormones, mechanism of action 1 answer
Which of the following are NOT under the control of thyroid hormone?A. Maintenance of water and electrolyte balanceB. Regulation of basal metabolic rateC. Normal rhythm of sleep-wake cycleD. Development of immune systemE. Support the process of R.B.C… Answer: 4. C and D only Key idea: Thyroid hormones act on metabolism, water-electrolyte balance and RBC formation. A: thyroid hormones suppo... Endocrine glands and hormones, mechanism of action 1 answer
Match List I with List II.List I: A. CCK; B. GIP; C. ANF; D. ADHList II: I. Kidney; II. Heart; III. Gastric gland; IV. PancreasChoose the correct answer from the options given below: Answer: 2. A-IV, B-III, C-II, D-I Key idea: Match each hormone with its source. CCK: secreted by the gastrointestinal tract and acts on the... Endocrine glands and hormones, mechanism of action 1 answer
Which of the following are not the effects of Parathyroid hormone ?(a) Stimulates the process of bone resorption(b) Decreases Ca^2+ level in blood(c) Reabsorption of Ca^2+ by renal tubules(d) Decreases the absorption of Ca^2+ from digested food(e) In… Answer: 3. (b), (d) and (e) only Key idea: PTH raises blood mathrmCa²⁺ . (a) Stimulates bone resorption: true effect. (b) Decreases blood ma... Endocrine glands and hormones, mechanism of action 1 answer
Succus entericus is referred to as : Answer: 2. Intestinal juice Succus entericus is the intestinal juice secreted by the glands of the small intestine (Brunner's glands and cry... Endocrine glands and hormones, mechanism of action 1 answer
Erythropoietin hormone which stimulates R.B.C. formation is produced by : Answer: 4. Juxtaglomerular cells of the kidney Erythropoietin is secreted by the juxtaglomerular cells of the kidney in response to low oxyg... Endocrine glands and hormones, mechanism of action 1 answer
Sphincter of oddi is present at : Answer: 2. Junction of hepato-pancreatic duct and duodenum The sphincter of Oddi guards the opening of the common hepato-pancreatic duct int... Endocrine glands and hormones, mechanism of action 1 answer
Select the correct statement. Answer: 1. Glucocorticoids stimulate gluconeogenesis. Glucocorticoids (cortisol) stimulate gluconeogenesis, so option 1 is correct. Glucagon... Endocrine glands and hormones, mechanism of action 1 answer
Which of the following glucose transporters is insulin-dependent ? Answer: 4. GLUT IV Key idea: GLUT4 is the insulin-regulated glucose transporter. GLUT4 is found in skeletal muscle and adipose tissue; insul... Endocrine glands and hormones, mechanism of action 1 answer
How does steroid hormone influence the cellular activities ? Answer: 2. Binding to DNA and forming a gene-hormone complex. Steroid hormones are lipid-soluble, so they enter the cell and bind to intrace... Endocrine glands and hormones, mechanism of action 1 answer
Which of the following is an amino acid derived hormone ? Answer: 1. Epinephrine Key idea: Hormones made from amino acids (amines, peptides, proteins) differ from steroid hormones made from choleste... Endocrine glands and hormones, mechanism of action 1 answer
Which of the following hormones can play a significant role in osteoporosis ? Answer: 2. Estrogen and Parathyroid hormone Key idea: Osteoporosis is loss of bone mass, linked to low estrogen and to calcium regulation. E... Endocrine glands and hormones, mechanism of action 1 answer
A temporary endocrine gland in the human body is : Answer: 2. Corpus luteum The corpus luteum forms from the ruptured Graafian follicle after ovulation, secretes progesterone, and degenerates... Endocrine glands and hormones, mechanism of action 1 answer
GnRH, a hypothalamic hormone, needed in reproduction, acts on : Answer: 1. anterior pituitary gland and stimulates secretion of LH and FSH. Key idea: Hypothalamic releasing hormones act on the anterior pi... Endocrine glands and hormones, mechanism of action 1 answer
Which hormones do stimulate the production of pancreatic juice and bicarbonate? Answer: 2. Cholecystokinin and secretin Hormones of the gut control pancreatic secretion. Secretin acts on pancreatic acinar cells to releas... Endocrine glands and hormones, mechanism of action 1 answer
Name a peptide hormone which acts mainly on hepatocytes, adipocytes and enhances cellular glucose uptake and utilization. Answer: 4. Insulin Insulin is a peptide hormone from the beta cells of the pancreas. It acts mainly on hepatocytes and adipocytes (and muscl... Endocrine glands and hormones, mechanism of action 1 answer
The posterior pituitary gland is not a 'true' endocrine gland because Answer: 1. it only stores and releases hormones The posterior pituitary (neurohypophysis) does not make its own hormones. Oxytocin and vasop... Endocrine glands and hormones, mechanism of action 1 answer
Identify the correct statement on 'inhibin' : Answer: 2. Is produced by granulose cells in ovary and inhibits the secretion of FSH. Key idea: Inhibin is made by the granulosa cells of th... Endocrine glands and hormones, mechanism of action 1 answer
The amino acid Tryptophan is the precursor for the synthesis of : Answer: 1. Melatonin and Serotonin Tryptophan is the precursor of melatonin and serotonin. Thyroid hormones (thyroxine, T₃) are made from ty... Endocrine glands and hormones, mechanism of action 1 answer
Which of the following pairs of hormones are not antagonistic (having opposite effects) to each other ? Answer: 4. Relaxin - Inhibin Key idea: Antagonistic hormones have opposite effects. Parathormone raises blood calcium; calcitonin lowers it.... Endocrine glands and hormones, mechanism of action 1 answer