All biological tubules [internal linings - convoluted or straight] are made from the same Epithelial Cells that also comprise Our Integument - or Skin.
Each testis is made up of abut 700 to 900 highly convoluted seminiferous tubules which leads to single highly convoluted Epididymis. Both of them are about 6 meters long, leading to Vas Differ-ens.
Nephrons
In mammals, it occurs in the seminiferous tubules of the male testes. Spermatogenesis is initiated in the male testis with the beginning of puberty. This comprises the entire development of the spermatogonia (former primordial germ cells) up to sperm cells. The gonadal cords that are solid up till then in the juvenile testis develop a lumen (opening) with the start of puberty. They then gradually transform themselves into spermatic canals that eventually reach a length of roughly 50-60 cm.They are termed convoluted seminiferous tubules and are so numerous and thin that in an adult male testicle their collective length can be 300 to 350 meters.
filters the blood to prevent blood cells and proteins from entering into the filtrate and to allow the passage of blood plasma.
Embryonic cells make up a plant
Each testis is made up of abut 700 to 900 highly convoluted seminiferous tubules which leads to single highly convoluted Epididymis. Both of them are about 6 meters long, leading to Vas Differ-ens.
Nephrons
In mammals, it occurs in the seminiferous tubules of the male testes. Spermatogenesis is initiated in the male testis with the beginning of puberty. This comprises the entire development of the spermatogonia (former primordial germ cells) up to sperm cells. The gonadal cords that are solid up till then in the juvenile testis develop a lumen (opening) with the start of puberty. They then gradually transform themselves into spermatic canals that eventually reach a length of roughly 50-60 cm.They are termed convoluted seminiferous tubules and are so numerous and thin that in an adult male testicle their collective length can be 300 to 350 meters.
Simple cuboidal epithelium; these cells form tubules that open onto a surface (glands).
filters the blood to prevent blood cells and proteins from entering into the filtrate and to allow the passage of blood plasma.
The kidneys do not have any skeletal muscle tissue but there is smooth muscle in the blood vessels contained in the kidney. So technically, kidneys have some muscle tissue or cells. The kidneys are a complex organ with many types of cells including epithelial cells that make up the tubules of the filtration system, interstitial cells that fill the spaces between the tubules, mesangial cells which are located at the junction between the vascular and tubule system and then of course the cells that make up the arteries and veins including endothelial cells, smooth muscle cells and adventitial fibrobalst cells.
the three main portions of the renal tubule are the proximal convoluted tubule, the loop of henle, and the distal convoluted tubule. the proximal convoluted tubule is the first portion. The proximal (convulated) tubule.
From the renal corpuscle (first the afferent arteriole feeds the glomerulus, which is then drained by the efferent arteriole) and passes on to the renal tubules (passes into the proximal convoluted tube, into the descending and ascending loops of Henle, and the distal convoluted tube)
Embryonic cells make up a plant
Simple cuboidal epithelium; these cells form tubules that open onto a surface (glands).
there are penitential cells in the liver, -narb
Cells make up tissues, and tissues make up organs.tissues are group of cells which perform similar action.so they are made up of cells only