Related Experiment Video
Updated: Aug 11, 2026

Rat Mesentery Exteriorization: A Model for Investigating the Cellular Dynamics Involved in Angiogenesis
Published on: May 20, 2012
[Vascularization of the anal sacs in the domestic cat]
S Godynicki1, M F Flachsbarth, R Schwarz
1Anatomisches Institut, Tierärztliche Hochschule Hannover, Deutschland.
Abstract:
The blood vessels of the anal sac in the domestic cat--A. rectalis caudalis and A. perinealis ventralis, from which the former arises--are visceral blood vessels. A rectalis caudalis, being the origin of anal sac arteries, facilitates the blood supply of the anal sac, while the duct of the anal sac is vascularized mainly by branches from the A. perinealis ventralis. Within the anal sac wall, the anal sac arteries ramify to become Rr. glandulae holocrinae, Rr. glandulae apocrinae as well as branches of a vascular network in the mucosal propria from which Rr. epitheliales arise. All of the mentioned rami extend into a close-meshed capillary network. The venous drainage is facilitated by veins that run mainly parallel to the arterial blood vessels.
More Related Videos
Related Concept Videos
Abdominal Aorta
The celiac trunk, a singular artery, divides into the left gastric artery, which...
Veins of the Abdomen and Pelvis
The inferior vena cava is fed by numerous smaller veins. The lumbar veins, for instance, drain the posterior abdominal wall, emptying both directly into the inferior vena cava and into the...
Development of the Lymphatic System
The first lymph sacs to form are the paired jugular lymph sacs located at the junction of the internal jugular and subclavian veins. From these sacs, lymphatic capillary plexuses extend to the thorax, upper limbs, neck, and head, eventually forming lymphatic vessels. Each jugular lymph sac maintains a...

