Micturition

Question 1

What 3 nerves are involved with micturition

Answer 1

1) Hypogastric n.

2) Pelvic n.

3) Pudendal n.

Question 2

What type of fibers does the hypogastric n. have?

Answer 2

Sympathetic

Question 3

What fibers does the pelvic n. have?

Answer 3

Parasympathetic

Question 4

What fibers does the pudendal n. have?

Answer 4

Somatic

Question 5

Which 2 nerves are involved with filling of the bladder?

Answer 5

Hypogastric and pudendal n.

Question 6

Which nerve is involved with peeing?

Answer 6

Pelvic n.

Question 7

Nerves and target of Pelvic n.

Answer 7

S1-S3; detrusor m.

Question 8

Nerves and target of hypogastric n.

Answer 8

L1-L4, IUS and Detrusor m.

Question 9

Nerves and target of Pudendal n.

Answer 9

S1-S3; EUS-somatic

Question 10

Receptors of Pelvic n.

Answer 10

Muscarinic-ACh

Question 11

Receptor of pudendal n.

Answer 11

Nicotinic-ACh

Question 12

Receptors of hypogastric n.

Answer 12

Beta receptors (bladder wall); alpha receptors (neck of bladder)

Question 13

Function of beta receptors

Answer 13

Relaxation of detrusor m.

Question 14

Function of alpha receptors

Answer 14

Contraction of bladder sphincter

Question 15

During the filling phase, the ________ nerve is inhibited

Answer 15

Pelvic n.

Question 16

What nerve(s) are inhibited during the voiding (peeing) phase

Answer 16

Hypogastric and pudendal

Question 17

Name the two higher centers of micturition

Answer 17

Pons and cerebrum

Question 18

UMN signs are shown when….

Answer 18

A lesion is present in the spine between the pons and L7

Question 19

What are UMN urinary signs

Answer 19

1) Large, turgid bladder

2) Difficulty expressing bladder

3) No voluntary control

Question 20

When you do IVDD surgery too treat UMN, what must you use to avoid detrusor atony

Answer 20

Catheter

Question 21

Where on the spinal cord would a lesion cause LMN signs

Answer 21

Sacral spinal cord or related nerves

Question 22

What are LMN urinary signs

Answer 22

1) Large flaccid bladder

2) Easy to express, impossible to empty

3) No voluntary control

Question 23

Lesions in the forebrain produce what type of urinary signs

Answer 23

Loss of habits about when and where to urinate

Question 24

Lesions cranial to sacral segments (L7 to Pons) produce what type of urinary signs

Answer 24

UMN

Question 25

Lesions at S1-S3 or sacral roots produce what type of urinary signs

Answer 25

LMN

Question 26

3 TYPES OF TREATMENTS FOR UMN urinary

Answer 26

Catheter to empty bladder, pharmacological drugs, IVDD surgery

Question 27

Muscarinic agonists are used to treat

Answer 27

Body of bladder

Question 28

Alpha-antagonists are used to treat

Answer 28

The neck of the bladder (smooth m. relaxant)

Question 29

Nicotinic cholinergic drugs are used to treat

Answer 29

The apex of the bladder