A. Proximal tubule
B. Loop of Henle
C. Vasa recta
D. Collecting tubule
✅ The correct answer is option D. Collecting tubule.
Physiology Mcqs
Which of the following hormones exerts the least effect on calcium metabolism of bone tissue ?
A. Anderogen
B. Estrogen
C. Nor epinephrine
D. Thyroid hormone
✅ The correct answer is option C. Nor epinephrine.
In jaundice, there is an unconjugated hyperbilirubinemia which is most likely due to __________?
A. Hepatitis
B. Cirrhosis
C. Obstruction of bile canaliculi
D. Increased break down of red cells
✅ The correct answer is option D. Increased break down of red cells.
The most important function of hydrochloric acid in the stomach is_______________?
A. Destruction of bacteria
B. Neutralization of chyme
C. Activation of pepsinogen
D. Stimulation of pancreatic secretion
✅ The correct answer is option C. Activation of pepsinogen.
Major basic protein is an important constituent of which leucocyte_____________?
A. Neutrophil
B. Eosinophil
C. Basophil
D. Lymphocyte
✅ The correct answer is option B. Eosinophil.
which receptor is responsible for monitoring the rate of muscle stretch ?
A. Nuclear bag intrafusal fibers
B. Nuclear chain
C. Golgi tendon organ
D. Pacinium corpuscles
✅ The correct answer is option A. Nuclear bag intrafusal fibers.
The function of plasma cell______________?
A. CMI
B. Phagocytosis
C. Opsonization
D. Antibody formation
✅ The correct answer is option D. Antibody formation.
Hypercalcemia associated with malignancy is most often mediated by _____________?
A. Parathyroid hormone ( PTH)
B. Parathyroid hormone related protein (PTHrP)
C. Interleukin – 6 ( IL- 6)
D. Calcitonin
✅ The correct answer is option B. Parathyroid hormone related protein (PTHrP).
The hormone , which stimulates uterus contraction and lets down milk, is_____________?
A. Progesterone
B. Prolactin
C. Prostaglandin
D. Oxytocin
✅ The correct answer is option D. Oxytocin.
Which of these following is not an effect of insulin ?
A. Decreased gluconeogenesis
B. Increased glycogenolysis
C. Increased transport of glucose into cells
D. Induction of lipoprotein lipase
✅ The correct answer is option B. Increased glycogenolysis.