Worksheetsurinary system quiz
Total questions: 13
Worksheet time: 8mins
what are the functions of the kidney?
filtration of blood
regulation of blood pressure
storing and producing platelets
acid-base balance
form and store urine
what are nephrons?
form the floor of the bladder
units secrete and excerete waste
unit that froms urine
functional units of filtration
what is detrusor muscle?
expands and contracts the bladder
smooth muscle that makes up the wall of the bladder
smooth muscle that lines the kidneys and nephrons
muscle that lines the ureters
what is the mucous transitional epithelium?
a protective lining to protect the bladder from acidic urine
forms the floor of the bladder
lining of the bladder that allows the bladder to expand and contract
beginning of the nephron
select all that apply for glomerurlar filtration
regulated by renin-angiotensin-aldosterone system
high = body will lose nutrients and water
low = tubules reabsorb toxins
constant depsite changes in blood pressure
select all that apply for the renin-angiotensin-aldosterone system
responds to low blood flow to the kidneys
end product is when aldosterone causes dct to retain water and sodium
end product is increased blood pressure and increased blood vol
response to a high blood flow to the kidneys
what is reabsorption?
when urine is concentrated
chemicals leave tubule and re-enter blood
chemicals leave blood and re-enter tubule
blood absorbs nutrients from kidneys
what does aldosterone to do the urinary system?
secreted in response to low Na levels
reduces urine output
results in increased blood pressure
results in decreased blood pressure
what does atria natriuertia peptine (ANP) do to the urinary system?
end result is decreased blood pressure
increased urine production
acts on renal tubules
acts on glomerulus and increases blood flow
where does filtration occur?
renal pyramids
renal cortex
renal corpsucle
renal medulla
what does ADH do to the urinary system?
increases blood pressure
reduces urine output
reabsorbs water
reabsorbs sodium
where is the urinary centre located in the brain?
hypothalamus
medulla oblongata
cerebrum
pons
select all that apply to the micturition reflex
external urinary spincter is voluntary and overrides pons
stretch receptors in bladder send impulse to spinal cord
internal urinary spincter is involuntary and opens when stimulated
relays to the pons to see if timing is right
