chapter 20-22 Flashcards
What are the organs of the urinary system?
kidneys, ureters, urinary bladder and the urethra.
What are the functions of the urinary system
to filter blood from the urine, transport urine from the kidneys to the urinary bladder, collect and store urine and to convey urine from the urinary bladder to the outside of the body.
what is the name of the main artery supplying to the kidneys?
afferent artery and the efferent artery.
what are the main veins supply to the kidneys?
renal vein.
what surrounds and protects the kidneys?
renal capsule.
what are the 3 regions of the kidneys?
- renal cortex
- renal medulla
- renal pelvis
structure of the kidneys?
has 3 regions.
has the major calyces and the minor calyces.
points towards the interior with the point to the center.
what is the function of the kidneys?
filters the blood from the urine.
what are the 2 types of nephrons?
the cortical nephron and the juxtamedullary.
what surrounds the glomerulus, that collects filtrated from the blood?
glomerular filtrate.
What is the name of the small artery in which blood travels as it enters the glomerulus?
Afferent arterioles.
what are the 3 steps that process of making urine?
- filtration
- reabsorption
3.secretion
what capillaries are associated with the process of urine?
glomerulus capillaries, and the peritubular capillaries.
what is nephritis?
inflammation of the nephrons.
what happens to filtration if the blood volume drops too low?
it will decrease the filtration.
filtrations is?
the first step in the urine process it filters the nephrons.
what is reabsorption?
it is the 2 steps in the urine process. it reabsorbed the needed stuff for the body after it has been filtered.
what is secretion?
it is the 3 steps in the urine process. it is the movement of substances from the blood stream to the filtrate. this is the excess stuff that is no longer needed in the body.
function of the urters?
transport urine from the kidneys to the urinary bladder.
function of the urinary bladder?
collects and stores urine.
function of the urethra?
urine from the urinary bladder to the outside of the body.
what does the kidneys secret?
erythropoietin.
what is erthropoietin?
causes blood pressure to raise from calcitriol and vitamin D.
what is the renal cortex?
it is the outer region of the kidneys (cortical).
