The filtration membrane Flashcards
What does the filtration membrane consist of?
- Fenestrated endothelium
- dense layer
-filtration slits
What forces water and small solutes across the mmbrane into capsular space? What types of solutes are excluded
Blood pressure
Large solutes, such as plasma proteins are excluded
Is filtration at renal capsule an active or passive process?
passive
What types of solutes enter capsular space?
Metaboloc wastes and excess ions
-glucose, fatty acids, amino acids, and vitamins
Useful materials are recaptured before filtrate ;eaves kidneys…This proccess is called
reabsoprtion
Where does reabsorption occur?
Proximal convoluted tubule
The proximal convoluted Tobule(PCT) is known as which segement of the renal tubule?
The first
Where does the entrance of PCT lie?
Opposite point of connection of afferent and efferent arterioles with glomerulus?
Describe the lining of PCT
-Simple cuboidal
-Has microvili of apical surfaces
-Functions in reabsoption
-Seceretes substances into lumen
Describe the lining of PCT
-Simple cuboidal
-Has microvili of apical surfaces
-Functions in reabsoption
-Seceretes substances into lumen
Describe the lining of PCT
-Simple cuboidal
-Has microvili of apical surfaces
-Functions in reabsoption
-Seceretes substances into lumen
What do tubular cells absorb and where does it release these contents?
Organic nutrients, ions, water, and plasma proteinns from tubular fluid
- releases them into peritubular fluid(interstitial fluid around renal tubule)
The renal tubule turns toward the
renal medulla
Where does the fluid of the descending limb flow towards?
Renal pelvis
Where does the fluid of the asceding limb flow towards?
Renal cortex
