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

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

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

6861. Low calcium level will cause_____________?
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A. Tetanus

B. All of the above

C. Hyper excitability of wrist muscle

D. Weak heart action

6862. The primary effect of calcitonin is__________________?
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A. Increases intestinal absorption of calcium

B. Bone resorption

C. Decreases intestinal absorption of calcium

D. Bone deposition
6863. Gastric secretion is stimulated by all the following except_____________?
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A. Gastrin

B. Vagal stimulus

C. Secretin

D. Gastric distension

6864. Secretin is secreted by_____________?
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A. Pancreas

B. Duodenum

C. Stomach

D. Liver

6866. Vasopressin is synthesized in the_____________?
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A. Juxtaglomerular apparatus

B. Hypothalamus

C. Vasomotor center

D. Anterior pituitary

6867. Blood coagulation is impaired in___________?
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A. Rickets

B. Hyperparathyrodism

C. Tetany

D. None

6869. Arterial PO2 is reduced in_____________?
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A. KCN poisoning

B. CO poisoning

C. Pulmonary hypoventilation

D. Anemia

6870. In Haldane effect CO2 dissociation curve is shifted to_____________?
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A. Right

B. Left

C. None of the above

D. Does not shift

6871. Posterior pituitary insufficiency leads to______________?
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A. Cretinism

B. Diabetes insipidus

C. Dwarfism

D. Diabetes mellitus

6873. Oxygen dissociation curve shifts to the right by all of the following except_____________?
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A. Rise in pH

B. Rise in H+ ion

C. Rise in temperature

D. Rise in carbon dioxide tension

6874. IN the adrenal gland, androgens are produced by the cells in the____________?
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A. Zona glomerulosa

B. Medulla

C. Zona reticularis

D. Zona fasciculata

6875. The work of breathing__________________?
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A. decreased in lying posture

B. is not affected by respiratory

C. is inversely related to lung compliance

D. remains constant during exercise

6876. The most significant immediate result of lowered serum calcium is_______________?
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A. Decalcification of bones

B. Weakened heart action

C. Hyperirritability of nerves and muscles

D. Decalcification of teeth

6877. Steroid hormones are believed to enter target cells via_______________?
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A. Carrier mediated endocytosis

B. Facilitated diffusion

C. Simple diffusion

D. Cholesterol lined pores in the plasma membrane

6878. which of the following secretions has a very high pH________________?
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A. Saliva

B. Pancreatic juice

C. Bile in gall bladder

D. Gastric juice

6879. Vital capacity is a measure of________________?
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A. Expiratory reserve volume plus reserve volume

B. Tidal volume

C. Inspiratory reserve volume plus expiratory volume

D. Tidal volume plus inspiratory reserve volume plus expiratory reserve volume
6880. Shift of the oxygen dissociation curve to right is caused by the following factors EXCEPT_______________?
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A. Increased concentration of oxygen

B. Increased 2,3 BPG

C. Increased temperature

D. Increased concentration of carbon di oxide

6881. Changes in biological activity occurring daily are referred as _________ rhythm?
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A. Circa sestin

B. Circannual

C. Circa triginatan

D. Circadian
6882. Secretin does not cause _______________?
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A. Bicarbonate secretion

B. Gastric secretion increase

C. Contraction of pyloric sphincter

D. Augments the action of CCK

6883. Which of the following hormones does not affect growth ?
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A. Thyroid hormone

B. Oxytocin

C. Somatotropins

D. Estrogen

6884. Oxytocin causes all accept_______________?
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A. Milk ejection

B. Myoepithelial cell contraction

C. Lactogenesis

D. Contraction of uterine muscle

6885. Human chorionic gonadotrophin hormone ( HCG)______________?
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A. Production is greatest in the last three months of pregnancy

B. Acts on the uterus to maintain integrity of endometrium in early pregnancy

C. Can be identified in the urine of pregnant women by immunological technique

D. Is a steroid hormone

6886. Noradrenaline is differentiated from adrenaline by increasing___________?
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A. Peripheral resistance

B. Heart rate

C. Cardiac output

D. All of the above

6887. Paneth cells secrete which of the following ?
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A. Secretin

B. Maltase

C. Lipase

D. Antibacterial substance
6889. Glucose tolerance test is usually done to assess_____________?
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A. Endocrine Dysfunction of Pancreas

B. Acute Pancreatitis

C. Acinar Function of the Pancreas

D. Carcinoma of Head of Pancreas

6890. The volume of gas in the lungs at the end of normal expiration is____________?
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A. Functional residual capacity

B. Residual volume

C. Inspiratory reserve volume

D. Expiratory reserve volume

6891. Bile color is due to_____________?
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A. 5 mercaptan purine

B. Bilirubin

C. Globulin

D. Creatinine

6892. tidal volume in adult is_____________?
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A. 125 ml

B. 2200 ml

C. 1500 ml

D. 500 ml
6893. Vital capacity is decreased, timed vital capacity (FEV 1.0 %) is normal in______________?
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A. Bronchial asthma

B. Chronic bronchitis

C. Scoliosis

D. Acute bronchitis

6896. There absorption of sodium chloride in kidneys is controlled by the hormones____________?
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A. All of the above

B. Adrenaline

C. A.D.H. and vasopressin

D. Aldosterone
6897. Bronchial circulation is associated with__________________?
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A. Gaseous exchange

B. Air conditioning

C. Drug absorption

D. Reserve volume

6898. Function of ADH is________________?
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A. Na+ absorption

B. Water reabsorption

C. Water excretion

D. K+ secretion