Where on a horse's body are the vascular groove, jugular groove and Galvayne's groove found?
- Vascular groove: Located on the head, just in front of the jowls toward the underside of the chin, it serves as a protective trench for the main arteries of the face.
- Jugular groove: Found along the underside of the neck, from the jaw to the shoulder, it is the site of the jugular vein.
- Galvayne's groove: This dark-colored stripe runs down the outer surface of the upper third (corner) incisor. It appears near the gum line when a horse is about 10 years old, reaches halfway down the tooth when he is approximately 15 and extends the full length by the time he is 20. Then it gradually disappears, from the top down, by the time he is 30.