Urinary System Part II Flashcards

1
Q

The mucosa of the organs of the ureter is lined by the uniquely

A

stratified urothelium or transitional epithelium.

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2
Q

Cells of stratified urothelium and transitional epithelium are organized as three layer:

A
  1. Single layer of small basal cells
  2. Intermediate region
  3. Superficial layer
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3
Q

resting on a very thin basement membrane

A

Single layer of small basal cells

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4
Q

one to several layers of cuboidal or low columnar cells

A

Intermediate region

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5
Q

large bulbous or elliptical umbrella cells

A

Superficial layer

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6
Q

sometime binucleated to protect the underlying cells

A

Superficial layer

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7
Q

surrounded by a folded lamina propria and submucosa, followed by a dense sheath of interwoven smooth muscle layers and adventitia.

A

Urothelium

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8
Q

Walls of the Ureter:

A

Mucosal
Muscular
adventitial layers

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9
Q

BLADDER:

Lamina propria and dense irregular connective tissue are highly vascularized

A

SUBMUCOSA

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10
Q

BLADDER:

3 layers – Detrusor muscle

A

MUSCULARIS

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11
Q

BLADDER:

Contracts to empty the bladder

A

MUSCULARIS

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12
Q

BLADDER:

With valves to prevent backflow of urine to ureter

A

MUSCULARIS

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13
Q

Carries urine from bladder to the exterior

A

URETHRA

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14
Q

has prominent longitudinal folds, giving it a distinctive appearance in cross-section.

A

URETHRA

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15
Q

Which has longer urethra, Male or Female?

A

Male

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16
Q

Under Urethra:

A

Prostatic urethra
Membranous urethra
Spongy urethra

17
Q

3-4 cm long, extends through the prostate gland and is lined by urothelium.

A

prostatic urethra,

18
Q

a short segment, passes through an external sphincter of striated muscle and is lined by stratified columnar and pseudostratified columnar epithelium.

A

membranous urethra

19
Q

about 15 cm in length, is enclosed within erectile tissue of the penis and is lined by stratified columnar and pseudostratified columnar epithelium, with stratified squamous epithelium distally

A

spongy urethra,

20
Q

The middle part of the urethra in both sexes is surrounded by the

A

external striated muscle sphincter