The urinary system Flashcards
Kidney function
regulation of blood ionic composition
regulation of blood pH
regulation of blood volume
enzymatic regulation of blood pressure
maintenance of blood osmolarity
production of hormones
regulation of blood glucose level
excretion of wastes and foreign substances
Layers of the kidney
renal fascia
perirenal fat capsule
fibrous capsule
Path of urine drainage
collecting duct
papillary duct
minor calyx
major calyx
renal pelvis
ureter
urinary bladder
2 features of the kidney
renal cortex
renal medulla
Path of blood flow in the kidney
renal artery
segmental arteries
interlobar arteries
arcuate arteries
cortical radiate arteries
afferent glomerular arterioreles
glomerular cappillaries
efferent glomerular arterioles
peritubular capillaries
peritubular venules
cortical radiate veins
arcuate veins
interlobar veins
renal vein
Nephron function
glomerular filtration
tubular reabsoprtion
tubular secretion
Glomerular filtration
the fluid that enters the capsular space is called the glomerular filtrate
Prostatic urethra
passes through prostate gland
it recieves urine and secretions containing sperm and such, neutralizes the pH of the urethra
spongy urethra
passes through the penis
longest segment
recieves mucous and substances
Intermediate urethra
passes through the deep perineal muscles
shortest segment
Ageing and the urinary system
kidneys shrink in size and have decreases blood flow
kidney disease
dehydration
urinary bladder reduces in size and capacity and muscles weaken
urinary tract infections