Download Name________________ Chapter 15 Urinary system What are the

Name________________
Chapter 15 Urinary system
1. What are the 2 functions of the urinary system?(give examples)
a. eliminates waste products
b. regulates homoestasis
2. What are the 4 major organs and the function of each?
Organ
Kidney
ureters
bladder
urethra
function
Urine formationi
Carries urine to bladder
Stores urine
Urine is excreted from body here
3. The structural and functional unit of the kidney is called a __nephron___. It is
responsible for _urine___ formation.
4. What are the 3 urine formation processes?
a.filtration
b.reabsorption
c.secretion
5. _Filtration___is the nonselective process that moves water and solutes smaller
than proteins through capillaries. Reabsorption___ is the process of reabsorbing
water, glucose amino acids and ions and happens in the peritubular cappillaries_.
6. The 3 nitrogenous waste products not absorbed are _urea___, uric acid_____ and
creatinine_. Also excess __water_ is not reabsorbed.
7. Characteristices of urine: colored yellow due to __urochrome___, sterile,
aromatic_, ph of 6, specific gravity of 1.001-1.035__.
8. Normal water amount in human body
a. Young adult females ___50%______
b. Young adult males ____60 %________
c. Babies ___75%________
d. Old age ____45%___________
9. If you urine is __dilute___________ then your water intake is excessive.
_Less____ Urine is produced if large amounts of water are lost.
10. Blood ph is 7;34 – 7.45__ above 7.45 is _alkalosis__, below 7.45 is
__acidosis___.
11. Control of the urinary sphincter does not start until ____18________ months.
That’s why babies wear diapers. _urinary infection are common in old age and
sexually active women and are also called cystitis. Micturation is the scientific
word for urination_. Incontinence means that you can’t hold your __bladder___
and is a problem in pregnant women and elderly.
12. Label the following urinary system: Include kidneys, ureters, urethra, bladder,
adrenal glands.