Urinary system

zunair's version from 2018-07-02 02:25

Section 1

Question Answer
Functions of the urinary system 1) eliminate nitrogenous wastes
functions of the urinary system 2) regulate ionic comp, pH, volume, pressure and glucose level
functions of the urinary system 3) Produce hormones
functions of the urinary system 4) excrete wastes and foreign substances
functions of the urinary system 5) returns most water and useful solutes back to blood stream

Section 2

Question Answer
why is excretion importantnecessary for water/salt homeostasis and ridding wastes
structures in the urinary systemkidneys, ureters, urinary bladder, urethra
kidney functional unit is whatNephron
Kidney function is whatfilter blood, create urine, stabilize water balance, maintaining Blood pressure and producing active form of vitamin D
2 regions in the kidneyCortex and medulla
Renal cortexthe outer end of the boundary of the surface of the kidney, the "light" portion. Glomerulus located here
Renal Medullamiddle portion of the kidney surface, Renal pyramids located here.
Glomerulus of nephronnetwork of capillaries that filter blood.

Section 3

Question Answer
renal arteriesenter each kidney
efferent arterioleglomerulus capillaries form efferent arteriole that leaves glomerulus
renal veinscarries blood to inferior vena cava
renal corpusclefilters blood plasma and encompasses glomerulus and bowmans capsule
renal tubulerefines filtered fluid and encompasses the "tubes", PCT, Loop of Henle, DCT
flow of fluid from glomerulusglomerular capsule, PCT, loop of henle, DCT, collecting duct, minor/major calyx, renal pelvis, ureter, urinary bladder, urethra

Section 4

Question Answer
Glomerular filtrationIt is the process that your kidneys use to filter excess fluid and waste products out of the blood into the urine collecting tubules of the kidney
tubular reabsorptionwater/ions/nutrients selectively reabsorbed from glomerular filtrate/returned to blood in peritubular capillaries
tubular secretionremove waste products/substance in excess from blood in peritubular capillaries into renal tubule
what steps in urine formation make urineglomerular filtration + tubular secretion - tubular reabsorption
glomerular filtration selective or non selectivenon selective
glomerular filtration allows what solutesallows ions, glucose, urea, ammonia, vitamins and amino acids from the blood to pass
glomerular filtration prevents whatlarge plasma proteins, blood cells and platelets

section 5

Question Answer
In tubular reabsorption where do substances goto peritubular capillaries
solutes are reabsorbed by what processActive and passive mechanisms
Most reabsorption wherePCT
Tubular secretionBlood content to Renal tubule
uretertransport urine from renal pelvis to urinary bladder
urethraleads from bladder to exterior of body
Kidneys are important in what balanceFluid balance