The nerve mediating pain of External hemorrhoids is:
-External hemorrhoids --> present below pectinate line , painful bleeding is present --> pain carried by Inferior Rectal Nerve (branch of pudendal nerve). -Internal haemorrhoids --> present above pectinate line --> painless bleeding is its feature.
Hypogastric nerve
Inferior rectal nerve
Pelvic splanchnic nerve
Sympathetic plexus
Development of GU system and Neuro-vascular supply of pelvis & perineum