Ureters, Bladder & Urethra

Question 1

Ureters

Answer 1

Arise from each renal pelvis
Slender tubes that carry urine from kidneys to bladder
Peristaltic waves move urine to bladder
Shape prevents back flow

Question 2

Ureter Wall Layers

Answer 2

1. Inner Mucosa - transitional epithelium
2. Muscle Layer - inner longitudinal and outer circular smooth muscle
3. Outer connective tissue - continuous with fibrous capsule

Question 3

Urinary Bladder

Answer 3

Collapsible muscular sac
Stores and expels urine
Empty: bladder collapses along rugae (folds), pyramid shape
Full: bladder expands without increase in pressure, spherical

Question 4

Rugae

Answer 4

Folds in the bladder that allow it to expand

Question 5

Urethra

Answer 5

Carries urine out of the bladder and out of the body

Question 6

Bladder Wall

Answer 6

Contains the detrusor muscle for expulsion of urine
Folded into rugae for expansion
Mucosa/transitional epithelium

Question 7

Trigone

Answer 7

Triangular region between ureter entry points and the urethra

Question 8

Male Bladder Location

Answer 8

Anterior to rectum

Superior to prostate gland

Question 9

Female Bladder Location

Answer 9

Anterior to vagina & uterus

Question 10

Urethra

Answer 10

Thin-walled muscular tube
Drains urine from the bladder
Length varies between M & F

Question 11

Internal Urethral Sphincter

Answer 11

Region surrounding urethral opening in bladder
Contains muscular sphincter
Detrusor muscle
Involuntary control of urination

Question 12

External Urethral Sphincter

Answer 12

Located where urethra passes through the urogenital diaphragm
Resting muscle tone
Skeletal muscle - voluntary to permit urination

Question 13

Male Urethra

Answer 13

Longer than females
Passes through prostate gland
Part of reproductive system
Transports both urine and semen
3 sections:
- Prostatic
- Membranous
- Spongy (penile)

Question 14

Female Urethra

Answer 14

Shorter than males
Separate from reproductive system
Transports urine only