Govt. Exams
Entrance Exams
Acetylcholinesterase rapidly hydrolyzes acetylcholine in the synaptic cleft, terminating neuromuscular transmission and allowing muscle relaxation.
The blood-brain barrier is formed by tight junctions between endothelial cells of brain capillaries, supported by astrocytes that regulate nutrient transport and maintain the barrier's integrity.
Epinephrine (adrenaline) is released by the adrenal medulla during stress and increases blood glucose by promoting glycogenolysis and inhibiting insulin secretion.
Diaphragm contraction flattens it and moves downward, increasing thoracic cavity volume and decreasing intra-pulmonary pressure.
The cerebellum coordinates voluntary movements and maintains body balance through proprioceptive feedback.
A complete cardiac cycle takes approximately 0.8 seconds at a heart rate of 72 beats per minute.
Pepsin is a protease secreted by gastric glands that begins protein digestion in the acidic environment of the stomach.
Glucagon, secreted by alpha cells of pancreatic islets, increases blood glucose through glycogenolysis and gluconeogenesis.
The glomerulus is a network of capillaries where ultrafiltration occurs, filtering small molecules like glucose, ions, and urea from blood into Bowman's capsule.
