14B-2, 3)įigure 14B-1 Horse skull, lateral view. Dorsal to the temporal fossa there is a ridge called the temporal line.14B-3) The temporal fossa is shallow on the skull of small RUMINANTS and HORSES. The temporal fossa is caudal to the orbit in BOVINE, and is relatively deep.Rostral to the infraorbital foramen find the palpable nasoincisive notch, between the incisive and nasal bones at the rostrum (i.e., nose area).Rostral and dorsal to the facial tuberosity find the infraorbital foramen where the infraorbital branch of the maxillary nerve (CN V Trigeminal) exits from the infraorbital canal.In the HORSE, the rostral end of the facial crest is the facial tuberosity.
In BOVINE, the facial crest is absent but there is a well-developed bony prominence called the facial tuberosity (Fig. 14B-1/3), which is not present in the other species we study. In the HORSE, rostrally the zygomatic arch is continuous with a prominent facial crest (Fig. The orbit is a complete bony circle in the HORSE, PIG, and RUMINANTS (whereas in the DOG it is completed laterally by the orbital ligament). 1, 14B-6)įIGURE 1: Diagrammatic representation of the equine cranium from the lateral perspective illustrating the craniofacial suture lines. The main bones of the skull we focus on include: the frontal (over the forehead), temporal (over the temples), the maxilla (upper jaw), palatine (caudal part of hard palate), mandible (lower jaw), basioccipital (caudal part of ventral braincase), and basisphenoid (rostral part of ventral braincase). Veterinary Gross Anatomy Ungulate Dissection (Head Labs 18-20)Ī10.1 Identify and describe the bone terms associated with the head (skull, mandible, hyoid apparatus). Related Supplemental Large Animal Surgery links: LAS Paranasal sinus disease Ocular Nerve Blocks and Enucleations LAS Upper respiratory endoscopy LAS Salivary disorders LAS Nostrils and nasal conchae LAS Guttural pouch disorders, LAS Disbudding and dehorning. Associated Clinician topics: equine dentition and aging, dental blocks – (The most relevant objectives: A10.1, A10.2, A10.5). 
NOTE: Application and dissection terms are bolded, Clinical Notes are bold red in this eBook
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