What does renal interstitium mean?? and does it releases substance called medullipin and what its effect?
Renal interstium means interstitial tissue of the kidney or stroma, fibroblast-like cells secrete this hormone. It results in vasodilatation and decreased blood pressure.
Drs Please.. What is the renal labyrinth?? where exactly is it??
Please drs, I want a picture of medullary rays of the kidney, where are they located?
The renal cortex is formed by alternating regions of:
ranal labyrinth: renal corpuscles and their proximal and distal convoluted tubules
andmedullary rays: formed of collecting tubules "more or less straight" and they are more or less longitudinal.
The collecting tubules penetrate the cortex, to connect with the distal convoluted tubules. These extensions are called medullary rays and represent the cores of the kidney lobules (Medullary Rays). The medullary rays contain also radially directed straight segments of the loop of Henle.
dr i dont understand this statement ascending limb is impearmeable to water and active in pumping Na and Cl result in hypertonicity of interstisium around collecting tubule.
They pump the ions to the outside of their lumen (interstitial tissue or interstitium) and prevent passage of water with the ions, so the interstium becomes hypertonic.
Regarding non filtered blood and filtered blood in the kidney which is oxygenated?
Arterial side oxygenated, including the afferent and efferent arterioles, venous side non oxygenated.
Why ureters are not covered by serosa .. Although they exist in the abdomen?!
They are partialy covered by serosa.