B.Pharm. Bachelor of Pharmacy Bachelor of Pharmacy (B.Pharm.) Human Anatomy & Physiology 4

Question 1

The blood-brain barrier is primarily formed by:

Accepted Answer

Tight junctions between capillary endothelial cells and astrocyte end-feet

Answer

Tight junctions between brain capillary endothelial cells, reinforced by astrocyte end-feet, form the BBB restricting molecular passage.

Question 2

Which cells in the testes are responsible for testosterone production?

Accepted Answer

Leydig (interstitial) cells

Answer

Leydig cells in the interstitial tissue of the testes synthesize and secrete testosterone under LH stimulation.

Question 3

Frank-Starling law of the heart states that:

Accepted Answer

Greater ventricular filling during diastole results in greater force of contraction

Answer

Increased end-diastolic volume stretches ventricular muscle fibers, producing a more forceful contraction and greater stroke volume.

Question 4

Which part of the brain integrates sensory input to coordinate balance, muscle tone, and fine motor movements?

Accepted Answer

Cerebellum

Answer

The cerebellum compares intended with actual movement, adjusting motor output to coordinate precise, smooth motions.

Question 5

The primary site of absorption of most nutrients and water-soluble vitamins in the gastrointestinal tract is the:

Accepted Answer

Small intestine (jejunum primarily)

Answer

The jejunum, with its vast surface area from villi and microvilli, absorbs the majority of digested nutrients.

B.Pharm. Bachelor of Pharmacy Practice Test