The functioning unit of the kidney or renal tubule.
The functional unit of the kidney made up of the glomerulus. Each kidney contains about one million.
A tiny structure in the kidney through which fluid is filtered.
The basic structural unit of the kidney. The unit functions to filter waste products from the blood for excretion in the urine. This unit reabsorbs water and conserves sodium under the influence of antidiuretic hormone (ADH). The nephron consists of a tuft of capillaries known as the glomerulus and the renal tubule. The average adult human kidney contains about one million glomeruli.
Structural and functional unit of the kidney; there are more than one million nephrons in each kidney. Each nephron consists of a renal corpuscle, containing a glomerulus enclosed in Bowman’s capsule; renal tubules; and the loop of Henle. Urine forms as a result of filtration of the blood in Bowman’s capsule, as well as absorption and secretion of materials (e.g., water, sodium, potassium) by the renal tubules.
Tiny structures of the kidneys that filter blood to remove waste products, regulate fluid and electrolyte content of the blood, and form urine. Nephrons are the working units of the kidneys. Each kidney is made up of approximately 1 million nephrons. The nephrons are composed of glomeruli (the filtering units of the kidneys), renal tubules, and their abundant supply of blood vessels.
The active unit of excretion in the kidney. Blood, supplied by branches of the renal artery, is filtered through a knot of capillaries (glomerulus) into the cup-shaped Bowman’s capsule so that water, nitrogenous waste, and many other substances (excluding colloids) pass into the renal tubule. Here most of the substances are reabsorbed back into the blood, the remaining fluid (‘urine) passing into the collecting duct, which drains into the ureter.
Each kidney comprises over a million of these microscopic units, which regulate and control the formation of urine. A tuft of capillaries invaginates the Bowmans capsule, which is the blind-ending tube (glomerulus) of each nephron. Plasma is filtered out of blood and through the Bowmans capsule into the renal tubule. As the filtred fluid passes along the tubule, most of its water and electrolytes (sodium, potassium, bicarbonate, etc.) are reabsorbed into the blood stream. The tubules eventually empty the filtrate, which by now is urine, into the renal pelvis from where it flows down the ureters into the bladder.
The structural and functional unit of the kidney, consisting of a renal (malpighian) corpuscle (a glomerulus enclosed within Bowman’s capsule), the proximal convoluted tubule, the loop of Henle, and the distal convoluted tubule. These connect by arched collecting tubules with straight collecting tubules Urine is formed by filtration in renal corpuscles and selective reabsorption and secretion by the cells of the renal tubule. There are approx, one million nephrons in each kidney.
The tiniest operational component of the kidney responsible for eliminating waste products and surplus water from the bloodstream.
The functional microscopic building block of the kidney is called a nephron, comprising a glomerulus (a filtering structure composed of a cluster of capillaries) and a tubule. Typically, each kidney houses approximately one million nephrons.
The nephrons are responsible for straining waste substances from the blood and adjusting the levels of salt and water expelled in urine, in harmony with the body’s demands. This procedure begins with blood filtration in the glomerulus and proceeds with additional refinement of the filtrate as it courses through the different segments of the tubule: namely, the proximal convoluted tubule, the loop of Henlé, and the distal convoluted tubule.