Anatomy of the face

Question 1

Describe the osteological features of the mandible ?
What nerve travels in between ?
(5)

Answer 1

1) Top of the jaw = condyloyde process and coronoid process with inferior alveolar nerve in between
2) Ramus
3) Angle of the jaw
4) Body ( has the mental foramen and mental protuberance)

teeth are embedded in the alveolar process

Question 2

Anatomy of the muscles of mastication

Answer 2

1) temporalis
2) masseter
3) Lateral pterygoid
4) Medial Pterygoid

Question 3

What muscles close the jaw ?

Answer 3

Temporalis, Masseter & Medial pterygoid

Question 4

What muscle open the mouth ?

Lowers the jaw

Answer 4

1) Lateral Pterygoid

Question 5

what does the TMJ joint consist of ?

Answer 5

Articulations between three surfaces;

• the mandibular fossa
• articular tubercle (from the squamous part of the temporal bone)
• head of mandible.

Question 6

where does CN’s pass through ?

12

Answer 6

1) Cribriform plate
2) Optic canal
3) SOF
4) Trochlear nerve = SOF
5) Trigeminal => v1 (SOF), v2 (Foramen Rotundum ) , v3( Foramen Ovale )
6) SOF
7) Internal auditory Meatus
8) IAM
9) Jugular Foramen
10) Jugular Foramen
11) Jugular Foramen
12) Hypoglossal canal