Exam 4 Remaining Branches of the Sacral Plexus & Coccygeal Plexus Flashcards
Name the nerve which pierces the sacrotuberous ligament.
Perforating cutaneous nerve of S2 & S3
The pudendal nerve arises from the ventral division of ___
2nd, 3rd, and 4th sacral ventral rami
Name the roots of the pudendal nerve
S2, S3, S4
Which of the following nerves passes through the lesser sciatic foramen?
- pudendal nerve
- superior gluteal nerve
- inferior gluteal nerve
- obturator nerve
Pudendal nerve
The pudendal nerve passes through the lesser sciatic foramen into what canal?
Pudendal canal
The pudendal nerve gives off the following branches except:
- Posterior scrotal or labial nerve
- inferior rectal nerve
- perineal nerve
- dorsal nerve of the penis
Posterior scrotal or labial nerve
Muscular branches of the perineal nerve innervate the following muscles except:
- bulbospongiosus
- sphincter urethrae
- anterior external ani sphincter
- dorsal nerve of the clitoris
Dorsal nerve of the clitoris
Which of the following structures is not supplied by the muscular branches of the perineal nerve?
- transversus perinei superficialis
- obturator externus
- bulbospongiosus
- sphincter urethrae
Obturator externus
Name the nerve which innervates the glans penis
Dorsal N of the penis
Name the nerve which passes through the hiatus between the urogenital diaphragm and the inferior pubic ligament
Dorsal nerve of the penis of Pudendal nerve
The pudendal nerve can be blocked by injection with a local anesthetic application towards the ischial spine, through the ___
Vaginal wall
Which of the following nerves emerges from the sacral hiatus with the film terminalis externs?
- lesser splanchnic nerve
- fourth sacral ventral ramus
- coccygeal ventral ramus
- anococcygeal nerve
Coccygeal ventral ramus
