Sacral Plexus

Question 1

What is the nerve roots of the Sacral Plexus

Answer 1

L4,5 from the lumbar and S1,2,3 and 4

Question 2

Which nerve roots supply the pudendal nerves

Answer 2

S2,3,4

Question 3

Which nerve roots supply the Common fibular nerve

Answer 3

L5 and S1 2 and 3

Question 4

Which nerve roots supply the Tibula nerve

Answer 4

L4, 5 and S1 2 and 3

Question 5

Which nerve roots supply the inferior Gluteal nerve

Answer 5

L5, S1 and 2

Question 6

Which nerve roots supply the superior Gluteal nerve

Answer 6

L4,5 and S1

Question 7

Pathway of the Pudenal Nerve

Answer 7

• Enters through the lesser sciatic foramen
• Lands on Obturator internus
  
  • Through anal triangle first
    § First branch
    □ Inferior rectal nerve for the anal trianngle
    § Second branch
    □ Perineal nerve of urogenital triangle
    ® Motor
    ® Cutaneous
    § Terminal branch
    □ Dorsal nerve of external genital organs

Question 8

Nerves that supply the Viscera of the Pelvis

Answer 8

There is the hypogastric plexus with the PNS and SNS (S2-4 which then drops into pelvis)