Anatomy - Urinary Incontinence and Renal System Pain

Question 1

2 types of sensory nerve

Answer 1

Somatic sensory

Visceral afferent

Question 2

3 types of Motor Nerve

Answer 2

Somatic motor

Parasympathetic nerve fibres
Sympathetic nerve fibres

Question 3

Ureteric peristalsis, bladder contraction + internal sphincter motor function

Answer 3

Sympathetic/parasympathetic

Question 4

External Sphincter + levator Ani motor function

Answer 4

Somatic motor

Question 5

Pain from urethra

Answer 5

Visceral afferent (in pelvis)
Somatic Sensory (in perineum)

Question 6

pain from testis

Answer 6

Visceral afferent (also some somatic presentation)

Question 7

Sympathetic Fibres of the autonomic nervous system

Answer 7

T1 - L2 Thoracolumbar outflow

Question 8

How do sympathetic nerve fibres get from CNS to the kidneys, ureters and bladder?

Answer 8

• Leave spine @ T10 - L2
• Enter sympathetic chains
• Leave here as abdominopelvic splanchnic nerves.
• Synapse at the abdominal sympathetic ganglia around abdominal aorta.
• form periarterial plexus to innervate organs.

Question 9

Parasympathetic Nerves which innervate the kidneys and ureter are carried within…

Answer 9

Vagus Nerve (CNX)

Question 10

Parasympathetic nerve fibres which innervate the bladder are carried in …

Answer 10

the pelvic splanchnic nerves (leaving @ S2,S3,S4)

Question 11

pain in kidney is felt where

Answer 11

Loin (posterior flank region)

Question 12

Pain from bladder is felt where

Answer 12

Suprapubic region (midline)

Question 13

Ureter calculus pain felt at

Answer 13

loin to groin

Question 14

Pain in urethra felt at …

Answer 14

localised in perineum

Question 15

Visceral afferents of kidneys, spinal cord levels

Answer 15

T11-L1

Question 16

Visceral afferents from ureters, spinal cord levels:

Answer 16

T11-L2

Question 17

Visceral afferents of bladder, spinal cord levels:

Answer 17

Proximal T11-L2
Lateral parts (not centre) S2,S3,S4

Question 18

Visceral afferents of proximal urethra, spinal cord levels:

Answer 18

S2,S3,S4 (pudendal nerve)

Question 19

Visceral afferents of testes, spinal cord levels:

Answer 19

T10-T11

Also due to L1 due to somatic

Question 20

Nerves associated with Urinary Continence

Answer 20

> Bladder stretch
CNS via S2,S3,S4
Contracts detrusor muscle and inhibit internal sphincter muscle
Brain can ovverride this reflex by voluntarily contracting the external sphincter and levator ani muscle

Question 21

L1 nerve

Answer 21

Iliohypogastric + Ilioinguinal

Question 22

L2 + L3 nerve

Answer 22

Lateral Cutaneous Nerve of the thigh

Question 23

L1 + L2 nerve

Answer 23

Genitofemoral nerve

Question 24

L2-L4 nerve

Answer 24

Femoral Nerve (lateral to psoas major)

Question 25

L2-L4 Nerve

Answer 25

Obturator Nerve (medial to psoas major)