Prolonged testosterone therapy can cause: A. Hypertrophy of seminiferous tubules of testes B. Hypertrophy of interstitial cells of testes C. Atrophy of interstitial cells of testes D. Both ‘A’ and ‘B’ are correct

Prolonged testosterone therapy can cause:
A. Hypertrophy of seminiferous tubules of testes
B. Hypertrophy of interstitial cells of testes
C. Atrophy of interstitial cells of testes
D. Both ‘A’ and ‘B’ are correct
by

1 Answer

Answer :

C. Atrophy of interstitial cells of testes
by

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Testosterone therapy started in a boy of 8 years and continued till puberty is likely to: A. Increase adult stature B. Reduce adult stature C. Have no effect on adult stature D. Cause hypertrophy of penis

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Assertion : Formation of sperm takes place in seminiferous tubules of testes . Reason : Seminiferous tubules lined with male germ cells and sertoli ce

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Last Answer : Assertion : Formation of sperm takes place in seminiferous tubules of testes . Reason : Seminiferous ... . If both Assertion & Reason are False.

Androgens are synthesised in (A) Leydig cells in testes (B) Sertoli cells in testes (C) Seminiferous tubules (D) Prostate gland

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Last Answer : Answer : A

The following is true of proton pump inhibitors except: A. They are the most effective drugs for Zolinger Ellison syndrome B. Their prolonged use can cause atrophy of gastric mucosa C. They inhibit growth of H. pylori in stomach D. They have no effect on gastric motilit

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Conversion of testosterone to dihydrotestosterone by the enzyme 5α-reductase is required for the following actions except: A. Formation of male external genitalia in the foetus B. Prostatic hypertrophy in elderly males C. Pubertal changes in the male adolescent D. Spermatogenesis

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The most likely complication of prolonged use of nasal decongestant drops is: A. Atrophic rhinitis B. Hypertrophy of nasal mucosa C. Naso-pharyngeal moniliasis D. Blockage of eustachian tubes

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Last Answer : A. Atrophic rhinitis

The most likely complication of prolonged use of nasal decongestant drops is: A. Atrophic rhinitis B. Hypertrophy of nasal mucosa C. Naso-pharyngeal moniliasis D. Blockage of eustachian tubes

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Finasteride acts by: A. Blocking testosterone receptors in the prostate gland B. Reducing testosterone secretion from testes C. Reducing LH secretion from pituitary D. Lowering circulating as well as prostatic dihydrotestosterone concentration

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Select the correct sequence for transport of sperm cells in male reproductive system. (a) Testis → Epididymis → Vasa efferentia → Vas deferens → Ejaculatory duct → Inguinal canal → Urethra → Urethral meatus (b) Testis → Epididymis → Vasa efferentia → Rete testis → Inguinal canal → Urethra (c) Seminiferous tubules → Rete testis → Vasa efferentia → Epididymis → Vas deferens → Ejaculatory duct → Urethra → Urethral meatus (d) Seminiferous tubules → Vasa efferentia → Epididymis → Inguinal canal → Urethra

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Last Answer : (c) Seminiferous tubules → Rete testis → Vasa efferentia → Epididymis → Vas deferens → Ejaculatory duct → Urethra → Urethral meatus

An increase in the number of new cells in an organ or tissue that is reversible when the stimulus for production of new cells is removed is termed a) Hyperplasia. Hyperplasia occurs as cells multiply and are subjected to increased stimulation resulting in tissue mass enlargement. b) Hypertrophy. Hypertrophy is an increase in size and bulk of tissue that does not result from an increased number of cells. c) Atrophy. Atrophy refers to reduction in size of a structure after having come to full maturity. d) Neoplasia. With neoplasia, the increase in the number of new cells in an organ or tissue continues after the stimulus is removed.

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Parenteral testosterone therapy in a boy can cause the following adverse effects except: A. Gynaecomastia B. Acne C. Cholestatic jaundice D. Precocious puberty

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Choose the correct statement about anabolic steroids: A. They are testosterone congeners having anabolic but no androgenic activity B. They are androgens with relatively selective anabolic activity C. They are suitable for long-term therapy in children D. Both ‘B’ and ‘C’ are correct

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Addition of a progestin for 10-12 days each month to estrogen replacement therapy in menopausal women is recommended because the progestin: A. Blocks the increased risk of myocardial infarction due to estrogen B. Blocks the increased risk of endometrial carcinoma due to estrogen C. Reverses vulval atrophy occurring in postmenopausal women D. Enhances the metabolic benefits of estrogen treatment

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Prolonged lithium therapy can cause: A. Diabetes mellitus B. Goiter C. Parkinsonism D. Gout

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Connective tissue around seminiferous tubules possess endocrine cells called

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The nutritive cells found in seminiferous tubules are:

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The difference between spermiogenesis and spermiation is (a) in spermiogenesis spermatids are formed, while in spermiation spermatozoa are formed (b) in spermiogenesis spermatozoa are formed, while in spermiation spermatids are formed (c) in spermiogenesis spermatozoa from Sertoli cells are released into the cavity of seminiferous tubules, while in spermiation spermatozoa are formed (d) in spermiogenesis spermatozoa are formed, while in spermiation spermatozoa are released from Sertoli cells into the cavity of seminiferous tubules

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The difference between spermiogenesis and spermiation is (1) In spermiogenesis spermatids are formed, while in spermiation spermatozoa are formed. (2) In spermiogenesis spermatozoa are formed, while in spermiation spermatids are formed. (3) In spermiogenesis spermatozoa from Sertoli cells are released into the cavity of seminiferous tubules, while in spermiation spermatozoa are formed. (4) In spermiogenesis spermatozoa are formed, while in spermiation spermatozoa are released from Sertoli cells into the cavity of seminiferous tubules.

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The gonadotrophic hormones are secreted by (a) anterior lobe of pituitary (b) interstitial cells of testes (c) adrenal cortex (d) posterior part of thyroid.

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Under more functional demand, cardiac muscles undergo C A. Atrophy B. Hyperplasia C. Hypertrophy D. None of these

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The following strategy will promote rather than curb emergence of antibiotic resistant micro-organisms: A. Whenever possible use broad spectrum antibiotics B. Prefer a narrow spectrum antibiotic to a broad spectrum one if both are equally effective C. Prefer short and intensive courses of antibiotics D. Use antibiotic combinations for prolonged therapy

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Prolonged oral therapy with the following antibiotic can damage intestinal villi resulting in steatorrhoea and loose motions: A. Ampicillin B. Tetracycline C. Neomycin D. Nystatin

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Hypothyroidism is a possible consequence of prolonged therapy with: A. Amiodarone B. Mexiletine C. Sotalol D. Procainamide

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why are seminiferous tubules not the same shape -Biology

Description : why are seminiferous tubules not the same shape -Biology

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why are seminiferous tubules so long -Biology

Description : why are seminiferous tubules so long -Biology

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why are seminiferous tubules so long -Biology

Description : why are seminiferous tubules so long -Biology

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why are seminiferous tubules not the same shape -Biology

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Release of sperms from seminiferous tubules is called

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Outer coat of seminiferous tubules is composed of fibrous connective tissue called

Description : Outer coat of seminiferous tubules is composed of fibrous connective tissue called

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Seminiferous tubules occur in the

Description : Seminiferous tubules occur in the

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Seminiferous tubules are composed of

Description : Seminiferous tubules are composed of

Last Answer : Seminiferous tubules are composed of A. Spermatogonia B. Glandular epithelium C. Sensory epithelium D. Germinal epithelium

Proximal and distal convoluted tubules are parts of (a) seminiferous tubules (b) nephron (c) oviduct (d) vas deferens

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he following is true of nifedipine except: A. It can aggravate urine voiding difficulty in elderly males with prostatic hypertrophy B. It promotes Na+ retention by a renal tubular action to cause ankle oedema as side effect C. It can inhibit insulin release from pancreas D. At high doses it can paradoxically increase the frequency of angina pectori

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In patients with benign prostatic hypertrophy, finasteride exerts the following action/actions: A. Reduces size of the prostate gland B. Increases peak urinary flow rate C. Relaxes vesical sphincter D. Both 'A' and 'B' are correct

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What is true of nicotinic acid as well as nicotinamide: A. Both possess vitamin B3 activity B. Both cause cutaneous vasodilatation C. Both lower plasma triglyceride and VLDL levels D. Both cause hyperglycaemia after prolonged medication

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Choose the correct statement about latanoprost: A. It is a PGF2α derivative used in glaucoma B. It is a selective α1 blocker used in benign hypertrophy of prostate C. It is a 5-α-reductase inhibitor used to reduce the size of enlarged prostate gland D. It is a PGE2 analogue used intravaginally for cervical priming

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Last Answer : A. It is a PGF2α derivative used in glaucoma

Choose the correct statement about latanoprost: A. It is a PGF2α derivative used in glaucoma B. It is a selective α1 blocker used in benign hypertrophy of prostate C. It is a 5-α-reductase inhibitor used to reduce the size of enlarged prostate gland D. It is a PGE2 analogue used intravaginally for cervical priming

Description : Choose the correct statement about latanoprost: A. It is a PGF2α derivative used in glaucoma B. It is a selective α1 blocker used in benign hypertrophy of prostate C. It is a 5-α- ... reduce the size of enlarged prostate gland D. It is a PGE2 analogue used intravaginally for cervical priming

Last Answer : A. It is a PGF2α derivative used in glaucoma

Glucose entry into the cells of the following organ/ tissue is highly dependent on the presence of insulin: A. Brain B. Liver C. Adipose tissue D. Kidney tubules

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The antibacterial action of aminoglycoside antibiotics is characterized by: A. Concentration dependent rate of bacterial cell killing B. Concentration dependent prolonged postantibiotic effect C. More pronounced bactericidal effect in anaerobic medium D. Both 'A' and 'B' are correct

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Last Answer : D. Both 'A' and 'B' are correct

The following drug has been found to improve urine flow in elderly males with benign prostatic hypertrophy: A. Nifedipine B. Prazosin C. Disopyramide D. Imipramine

Description : The following drug has been found to improve urine flow in elderly males with benign prostatic hypertrophy: A. Nifedipine B. Prazosin C. Disopyramide D. Imipramine

Last Answer : B. Prazosin

Angiotensin II plays a key role in the following risk factor for ischaemic heart disease: A. Hypercholesterolemia B. Ventricular hypertrophy C. Carbohydrate intolerance D. Cardiac arrhythmia

Description : Angiotensin II plays a key role in the following risk factor for ischaemic heart disease: A. Hypercholesterolemia B. Ventricular hypertrophy C. Carbohydrate intolerance D. Cardiac arrhythmia

Last Answer : B. Ventricular hypertrophy

Which of the following is a steroid 5α-reductase inhibitor that has been found useful in benign prostatic hypertrophy and male pattern baldness: A. Flutamide B. Finasteride C. Prazosin D. Minoxidil

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Last Answer : B. Finasteride

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Last Answer : B. Inhibits proteolysis of thyroglobulin

16.18 Thyrotropin exerts the following actions on the thyroid gland except: A. Increases vascularity B. Inhibits proteolysis of thyroglobulin C. Induces hyperplasia and hypertrophy D. Promotes iodide trapping

Description : 16.18 Thyrotropin exerts the following actions on the thyroid gland except: A. Increases vascularity B. Inhibits proteolysis of thyroglobulin C. Induces hyperplasia and hypertrophy D. Promotes iodide trapping

Last Answer : B. Inhibits proteolysis of thyroglobulin

Select the drug which can improve urinary flow rate in benign prostatic hypertrophy without affecting prostate size: A. Amphetamine B. Prazosin C. Finasteride D. Goserelin

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