Intro to Urinary System Flashcards Preview

Urinary System > Intro to Urinary System > Flashcards

Flashcards in Intro to Urinary System Deck (12)
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1
Q

The substance most often measured to determine normal kidney function is:

A

Creatinine.

2
Q

In the average bladder, what amount of urine would cause a moderately distended sensation and the desire to void?

A

250ml

3
Q

The mechanism for voiding begins with?

A

The relaxation of the internal sphincter

4
Q

How does oxygenated blood enter each kidney?

A

Oxygenated blood enters each kidney via a renal artery

5
Q

Which hormone tends to decrease the amount of urine produced?

A

Aldosterone

ADH

6
Q

How does deoxygenated blood exit each kidney?

A

Deoxygenated blood exits each kidney via a renal vein

7
Q

What does the urethers do?

A
  • Carry urine from the kidneys to the bladder
8
Q

What are the three movements of urine?

A
  1. Peristaltic contractions
  2. Hydrostatic pressure
  3. Gravity
9
Q

How is the back flow of urine prevented?

A

One way valves between each ureter and bladder

10
Q

What are the components required to urinate?

A

Stimulus
Pathway
Effectors

11
Q

What is the voluntary effector that enables us to control when we go to the toilet?

A

External sphincter - the external sphincter constricts to consciously prevent urination

12
Q

What is the role of the pelvic floor muscles?

A

To control the external sphincter