Page 339 - Anatomy and Physiology of Farm Animals, 8th Edition

324 / Anatomy and Physiology of Farm Animals

(A) External carotid a.
VetBooks.ir Maxillary a. Internal carotid a.

Occipital a.

Common carotid a.

Linguofacial a.

Facial a.

(B)
Rostral cerebellar a.
Internal carotid a.
Caudal cerebellar a.
Vertebral a.

Ventral spinal a.
Rostral cerebral a.
Middle cerebral a.
Basilar a. Caudal cerebral a.
Labyrinthine a.
Figure 17-7. Blood supply to the head and brain. (A) The common carotid artery branches into a large
external carotid artery supplying most of the head and the internal carotid artery, which enters the skull
to supply the brain. (B) Ventral view of the brain. Arterial blood supply arrives via paired vertebral arteries
and internal carotid arteries. a, artery.

Arterial Distribution to the Pelvic Limb to branches serving caudoventral parts of
the abdominal wall and some structures of
The abdominal aorta terminates near the the inguinal region (prepuce, scrotum, and/
lumbosacral junction of the vertebral col- or mammary gland). These large arteries
umn in the two internal iliac arteries (and then continue into the pelvic limbs as the
often a small, midline continuation called femoral arteries. The femoral artery
the median sacral artery). Each internal descends on the medial aspect of the limb,
iliac artery and its many branches supply giving branches to the large thigh muscles,
the region of the pelvis, the hip, and much and continues in the region of the caudal
of the genitalia (perineum). stifle as the popliteal artery. After a very
Just cranial to the internal iliac arteries, short course, the popliteal artery divides
the external iliac arteries arise and give rise into cranial and caudal tibial arteries.