Urinary system Flashcards
(18 cards)
Urinary system is composed of :
Kidneys, Ureters, Urinary bladder & Urethra
Functions of kidney :
-Excretion of waste products as Urea , Creatinine & Uric acid
-Regulation of Plasma Volume & Osmolarity
-Regulation of Plasma PH
Endocrine function of kidney :
-Secrets Erythropoietin (Stimulates Erythropoiesis)
-Secrets Renin (Converts Angiotensinogen to Angiotensin I)
-Helps activation of Vitamin D into its active form Calcitriol
Name the outer part of the kidney :
Renal cortex
Name the inner part of the kidney :
Renal medulla
Name the basic structural & functional units of the kidneys :
Nephrons
Each nephron is consists of :
Glomerulus & Tubules
Glomerulus is formed a tuft of :
Capillaries
Glomerulus is supplied by an :
Afferent arteriole
Glomerulus is drained by an :
Efferent arteriole
Glomerulus is surrounded by :
Bowman’s capsule
The 4 content of Tubules are :
- PCT & Loop of Henle (LH)
- DCT & Collecting duct (CD)
Name the 3 urine formation processes :
-Glomerular filtration
-Tubular reabsorption
-Tubular secretion
Glomerular filtration rate (GFR) is :
125 ml/minute
Name the type of process of Tubular reabsorption :
Passive or Active
Most Tubular Reabsorption & Secretion tale place in :
PCT
Tubular secretion is the transport of unwanted substances from :
from Blood to Renal Tubules
Name the type of process of Tubular secretion :
Active process
