Week 1 revisions

Answer 1

Above the pectinate line: endoderm

Type of muscle: Smooth
Innervation: Visceral, autonomic
​Pelvic splanchnics
Venous drainage: Portal system
Lymph drainage: With internal iliac vessels

Below the pectinate line: ectoderm

Type of muscle: Skeletal (striated)
Innervation: General sensory, somatomotor
​Pudendal nerve
Venous drainage: Iliac/caval system
Lymph drainage: Superficial inguinal nodes