Part 5

Question 1

Urethra Length

Answer 1

Females-3-4 cm 1 inch
Males: 20 cm 8 inch

Question 2

Urethra Location

Answer 2

Females- along vagina
Males- through prostate and penis

Question 3

Urethra Function

Answer 3

Females-carry urine
Makes- carry urine and sperm passageway

Question 4

Micturition (voiding)

Answer 4

-both sphincter muscles must open to allow voiding
- internal urethral is relaxed after stretching of bladder
-activation is from an impulse sent to the spinal cord and back via pelvic splanchic nerves
-external urethral sphincter must be voluntarily relaxed

Question 5

Maintaining water balance

Answer 5

Normal amount of water in humans
-young female adult- 50%
- young male adult- 60%
- babies-75%
-old age -45%

Question 6

Distribution of body fluid

Answer 6

Intracellular fluid
Extracellular fluid

Question 7

Intercellular fluid

Answer 7

Inside cells

Question 8

Extracellular fluid

Answer 8

Outside cells
- interstitial fluid
- blood plasma