Medical MCQs

5099 MCQs  (Page 446 of 510)

The primary site of action of antidiuretic hormone is on the_______________?
A. Distal tubules and collecting ducts in the kidney
B. Afferent arterioles of the glomeruli
C. Thirst center in the hypothalamus
D. Osmoreceptors in the hypothalamus
Features of hypothyroidism does not include______________?
A. Obseity
B. Hypertension
C. High tsh levels
D. Increased risk of infections
Hormone released during increased stress is_____________?
A. Cortisol
B. Thyroxine
C. Growth hormone
D. Somatostatin
Which of the following statements about the action of the somatomedin is true ?
A. They inhibit protein synthesis
B. They antagonize the effect of insulin
C. They promote growth of bone and cartilage
D. They mediated the local effects of somatostatin
Steroid hormones are believed to enter target cells via_______________?
A. Facilitated diffusion
B. Carrier – mediated endocytosis
C. Cholesterol lined pores in the plasma membrane
D. Simple diffusion
Hormones, which stimulate spermatogenesis, are______________?
A. Insulin and glucagon
B. Thyroxine and parathormone
C. A.d.h. and oxytocin
D. Testosterone and f.s. h
Aldosterone production is controlled by _____________?
A. Anterior pituitary gland
B. Posterior pituitary gland
C. Hypothalamus
D. Adrenal gland
The decreased phosphate level seen in hyper parathyroidism is due to ________________?
A. Decreased intestinal phosphate absorption
B. Increased calcium excretion
C. Decreased renal phosphate absorption
D. Increased loss of phosphate in urine