The Urinary System (Excretory System) Flashcards Preview

Honors Anatomy & Physiology > The Urinary System (Excretory System) > Flashcards

Flashcards in The Urinary System (Excretory System) Deck (16):
1

Organs of the Urinary System (4)

Kidneys
Ureters
Urinary Bladder
Urethra

2

Kidneys
def?

Form urine- wastes, water, salts

3

Ureters
def?

Carries urine from kidneys to bladder

4

Urinary Bladder
def?

Collects & stores urine

5

Urethra
def?

Expels urine out of body

6

Functions of Urinary System

1) Regulatory- regulate mainly things in blood
2) Hormone Production
3) Waste Excretion

7

Regulatory Functions of Urinary System (5)
what is it completed by?

completed by the KIDNEYS
-blood volume
-blood pressure
-blood glucose
-blood ionic composition
-blood pH

8

-blood volume

absorbing or eliminating water in urine

9

-blood pressure

secreting renin (enzymes) increase/decrease BP

10

-blood glucose

synthesize new glucose molecules and release into blood
(can add more glucose if insulin isn't working)

11

-blood ionic composition

regulate levels of Na+, K+, Cl-,HPO4^2-

12

-blood pH

excrete H+ into urine and conserve HCO3- (buffer)

13

Production of Hormones
which 2?

Calcitriol (calcium)
Erythropoietin (erythrocytes)

14

Calcitriol
(hormone produced by urinary system)

active form of vitamin D
regulates calcium homeostasis

15

Erythropoietin
(hormone produced by urinary system)

stimulate production of RBC's

16

Excretion of Wastes
def? purpose (4)?

Formation of Urine
-removal of metabolic wastes, foreign substances, drugs, & environmental toxins