Upper Horse: Mare:
1- aorta
2- left lobe of liver
3- stomach
4- spleem
5- left kidney
6- body of uternus
7- oesphagus
8- trachea
9- left vagus nerve
10- left ventricle
11- left dorsal colon
12- small intestine
13- left ventral colon
14- external anal shincter muscle
15- vulva
16- urinary bladder
Lower Horse: Stallion:
2- right lobe of liver
10- right ventricle of heart
16- urinary bladder
17- rectum
18- descending duodenum
19- right kidney
20- Azygos vein
21- right risticle
22- body of penis
23- lateral caecal band
24- dorsal sac of caecum
25- right ventral colon
26- caudal vena cava
The horse reproduces sexually and internally. The mares(female) are in season for 5 days every 3 weeks during summer. The equine pregnancy lasts for 11 months. When the foal(baby) is born, it must recieve the mares colostrum which contains vital nutrients and anti-bodies. About 30 minutes after birth the foal will be able to stand, drink and walk around the stall.
