Kidneys are vital organs for survival. Several factors like infections, injury or restricted blood flow to…
Kidneys are vital organs for survival. Several factors like infections, injury or restricted blood flow to kidneys reduce the activity of kidneys. This leads to accumulation of poisonous wastes in the body, which can even lead to death. In case of kidney failure, an artificial kidney can be used. An artificial kidney is a device to remove waste products from the blood through dialysis.
(a) (i) Name the artery that brings oxygenated blood to the kidney.
(ii) Name the cluster the thin-walled blood capillaries present in the Bowman's capsule.
(b) In human excretory system name the organ which stores urine. Is this organ under hormonal control or nervous control ?
(c) (i) List two major steps involved in the formation of urine and state in brief their functions.
Solution
(a)(i) Renal Artery
(ii) Glomerulus
(b) Urinary bladder
Nervous control
(c)(i) Filtration: Nitrogenous wastes such as urea or uric acid are removed
Reabsorption: Glucose, amino acids, salts/some useful materials and major amounts of water reabsorbed