In the proximal convoluted tubule
explain the process of selective reabsorbtion
Tubular secretion is a part of urine formation occurring within the nephrons of the kidneys. After glomerular filtration, in which fluids from the blood pass into the glomerular capsule of the renal tubule, the filtrate is subject to tubular reabsorption and tubular secretion within the convoluted tubules and collecting ducts of the nephrons.
Primary bronchus
The distal convoluted tubule or the collecting tube.
Epididimis.
Epididimis.
The primary site of intracellular digestion are the lysosomes.
to increase the surface area for reabsorbtion
to increase the surface area for reabsorbtion
cortisol and aldosterone
In renal physiology, reabsorption or tubular reabsorption is the process by which the nephron removes water and solutes from the tubular fluid (pre-urine) and returns them to the circulating blood. It is called reabsorption (and not absorption) because these substances have already been absorbed once (particularly in the intestines) and the body is reclaiming them from a postglomerular fluid stream that is on its way to becoming urine (that is, they will soon be lost to the urine unless they are reabsorbed from the tubule into the peritubular capillaries. Wiki
The primary site for blood cell production is the bone marrow.