Lower Limb

Question 1

Answer 1

Question 2

Answer 2

Question 3

Answer 3

Question 4

Answer 4

Question 5

Answer 5

Question 6

Answer 6

Question 7

Answer 7

Question 8

Answer 8

Question 9

Answer 9

Question 10

Answer 10

Question 11

Answer 11

Question 12

Pudendal Nerve:

• This nerve leaves the pelvis via the greater sciatic foramen, then re-enters via the lesser sciatic foramen.
• It moves anterosuperiorly along the lateral wall of the ischiorectal fossa, and terminates by dividing into several branches.

Roots: S2, S3, S4

• Motor Functions: Innervates the skeletal muscles in the perineum, the external urethral sphincter, the external anal sphincter, levator ani.
• Sensory Functions: Innervates the penis and the clitoris and most of the skin of the perineum.

(Tip – an easy way to remember the functions of the pudendal nerve is S2, S3, S4 keeps poo off the floor!)

Answer 12