Entrance Exams
Govt. Exams
The jejunum is the primary site for nutrient absorption due to its extensive villi and optimal length for absorption process.
Blood pH (7.35-7.45) is maintained by multiple buffer systems including bicarbonate, phosphate, and protein buffers working together.
ADH (Antidiuretic hormone) is produced by the hypothalamus and stored/released by the posterior pituitary, not the anterior pituitary.
Diaphragm contraction flattens it and moves downward, increasing thoracic cavity volume and decreasing intra-pulmonary pressure.
Presbyopia occurs due to loss of lens elasticity with age, reducing accommodation ability for near vision.
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.