A1 The Head Superficial Structures

Question 1

What are the three shapes of the canine skull?

Answer 1

Mesaticephalic (e.g. Labrador, retriever)

Brachycephalic = shortened / flattened skull (e.g. Pug, bulldog)

Dolicocephalic = long (e.g. Greyhound, whippet)

Question 2

What is prognathia?

Answer 2

Overshot jaw / mandible longer than face

Question 3

What is brachygnathia?

Answer 3

Underbite / mandible shorter than face

Question 4

What nerve innovates muscles of facial expression?

Answer 4

The facial nerve ( CN VII )

Question 5

What are the superficial blood vessels of the canine head?

Answer 5

Angularis oculi vein
↓
Facial vein
↓
Lingual vein
↓
Lingualfacial vein
↓
Maxillary vein
↓
External jugular vein

Question 6

What are the superficial nerves of the canine head?

Answer 6

• auriculopalpebral nerve (branch of facial nerve)
• palpebral nerve
• dorsal buccal branch of facial n.
• infraorbital nerve (branch of trigeminal n.)
• ventral buccal branch of facial n.

Question 7

What are the cranial nerves?

Answer 7

CN I = olfactory n.
CN Il = optic n.
CN III = oculomotor n.
CN lV = Trochlear n.
CN V = trigeminal n.
CN VI = abducens n.
CN Vll = facial.
CN VIII = vestibulocochlear n.
CN IX = glossopharyngeal n.
CN X = vagus n.
CN XI = accessory n.
CN XII = hypoglossal n.