NEB Medical Standard 3 MCQs

Gastrin is a gastrointestinal hormone that stimulates gastric acid secretion and mucosal growth.

Erythropoietin is a renal hormone that stimulates red-cell production in bone marrow during hypoxia.

Ovulation is release of a mature oocyte from the dominant follicle after the mid-cycle luteinising hormone surge.

Primary haemostasis is formation of a platelet plug at a site of vascular injury.

Vestibulo-ocular reflex is a reflex that stabilises gaze during head movement by producing compensatory eye movement.

Frank-Starling mechanism is an increase in ventricular filling produces a stronger contraction within physiological limits.

Glomerular filtration rate is the volume of plasma filtered by all functioning glomeruli per unit time.

Surfactant is a phospholipid-rich substance that lowers alveolar surface tension and helps prevent collapse.

Bohr effect is reduced haemoglobin affinity for oxygen in tissues with increased carbon dioxide or acidity.

Brachial plexus is a network of spinal nerve roots C5 to T1 that supplies the upper limb.

Coronary sinus is the main venous channel that drains most of the myocardium into the right atrium.

Ureterovesical junction is a normal narrowing where the ureter enters the urinary bladder and a common site of stone impaction.