medical MCQs – Page 343

Practise multiple-choice questions from medical for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

medical Mcqs

1. oral anatomy 2. microbiology 3. oral pathology and medicine 4. physiology 5. biochemistry 6. general anatomy 7. dental materials 8. pharmacology 9. pathology 10. oral histology

6841. Cortisol levels are maximum during____________?
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A. Evening

B. Sleep

C. Have no change

D. Early morning

6842. The intrapleural pressure at the end of deep inspiration is ______________?
0

A. +4 mm Hg

B. -4 mm Hg

C. -18 mm Hg

D. #NAME?

6843. Production of bile takes place in____________________?
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A. The gall bladder

B. Hepatic duct

C. Hepatocytes

D. Kupffer cells

6844. The most important action of Secretin is to_____________?
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A. decrease gastric secretion

B. neutralize the acid from the stomach

C. increase secretion of bicarbonates by pancreas

D. Cause contraction of pyloric sphincter

6845. Regarding myxedema the following are true except______________?
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A. Dullness, loss of memory

B. B.M.R increased by 30 -45%

C. Swollen, oedematous look of the face

D. Impotency, amenorrhea

6846. Hypercalcemia associated with malignancy is most often mediated by _____________?
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A. Parathyroid hormone ( PTH)

B. Calcitonin

C. Parathyroid hormone related protein (PTHrP)

D. Interleukin 6 ( IL- 6)

6847. Cephalic phase of gastric secretion can be demonstrated by the following experiment____________?
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A. Condition reflex

B. None of the above

C. Pavlovs pouch

D. Heidenhans pouch

6848. Acromegaly is a disorder of____________?
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A. Excess FSH secretion

B. Excess thyroxine secretion

C. Excess ACTH secretion

D. Excess growth hormone secreting

6849. Which is false regarding insulin______________?
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A. Causes lipogenesis

B. Secreted by beta cells

C. Promotes glycogenesis

D. Glycopeptide

6850. Inhibit b hormone has effect on_______________?
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A. Spermatogenesis

B. Sertoli cells

C. FSH

D. Seminiferous tubules

6851. Carbon monoxide poisoning causes_______________?
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A. Oxygen dissociation curve shifts to left

B. Cyanosis

C. Hypoxic hypoxia

D. Diffusion capacity of lungs decreases

6852. Endocrine glands that are not influenced by the pituitary gland include the____________?
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A. Pancreas, adrenal medulla and thyroid gland

B. Adrenal cortex, parathyroids and ovaries

C. Adrenal medulla, parathyroids, and the islets of langerhans

D. Thyroid gland, testes , and adrenal medulla

6853. Contraceptive action of combined pill is mainly due to_______________?
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A. Prevents the implantation of fertilized egg

B. Decrease in tubal motility

C. Inhibits ovulation

D. Prevents the fertilization

6854. A child with stunted growth with a stuffed belly, and short stature with mental retardation is suffering from the deficiency of which of the following______________?
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A. Parathyroid

B. Growth hormone

C. Rickets

D. Thyroxine

6855. Fertilized ovum usually gets attached to the uterus wall in ____________?
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A. 28 days

B. 14 days

C. 1 week

D. 8 weeks

6856. The primary site of action of antidiuretic hormone is on the_______________?
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A. Osmoreceptors in the hypothalamus

B. Afferent arterioles of the glomeruli

C. Thirst center in the hypothalamus

D. Distal tubules and collecting ducts in the kidney

6857. Due fear which of the following hormones increases rapidly _______________?
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A. Epinephrine

B. Thyroid hormone

C. Corticosteroid

D. Growth hormones

6858. The hormone whose deficiency causes diabetes insipidus is released from which nucleus of pituitary ________________?
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A. Suprachiasmatic

B. Pre optic

C. Paraventricular

D. Supraoptic

6859. Inability of exchange of oxygen through lung tissue if known as____________?
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A. Ischemic hypoxia

B. Anoxic anoxia

C. Histotoxic hypoxia

D. Anoxia

6860. In children, hypothyroidism causes_____________?
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A. Gigantism

B. Myxodedema

C. Cretinism

D. Acromegaly

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