B.Pharm. Bachelor of Pharmacy Bachelor of Pharmacy (B.Pharm.) Human Anatomy & Physiology 5

Question 1

The exocrine secretion of the pancreas is delivered to the duodenum via the:

Accepted Answer

Hepatopancreatic ampulla (of Vater)

Answer

The pancreatic duct joins the common bile duct at the hepatopancreatic ampulla, which opens into the duodenum.

Question 2

Action potentials propagate along unmyelinated nerve fibers by which mechanism?

Accepted Answer

Continuous conduction along the entire axon membrane

Answer

Unmyelinated fibers conduct action potentials continuously along the axon membrane, slower than saltatory conduction in myelinated fibers.

Question 3

The hormone aldosterone from the adrenal cortex acts on the kidney to:

Accepted Answer

Increase Na+ reabsorption and K+ excretion in collecting ducts

Answer

Aldosterone upregulates Na+/K+-ATPase and ENaC channels in collecting duct principal cells, retaining Na+ and excreting K+.

Question 4

Which plasma protein is primarily responsible for maintaining oncotic pressure and preventing edema?

Accepted Answer

Albumin

Answer

Albumin, the most abundant plasma protein, exerts the greatest oncotic pressure, retaining fluid in the vascular compartment.

Question 5

During swallowing (deglutition), the epiglottis covers the glottis primarily to:

Accepted Answer

Prevent food and liquid from entering the larynx and trachea

Answer

The epiglottis folds backward over the glottis during swallowing to direct food into the esophagus and protect the airway.

B.Pharm. Bachelor of Pharmacy Practice Test