Temporo-Mandibular Joint

Question 1

Name the five layers of the scalp?

Answer 1

Skin
Connective tissue
Aponeurosis
Loose areolar layer
Pericranium

Question 2

The aponeurosis is between which two muscle bellies?

Answer 2

Frontal belly and Occipital belly of Occipitofrontalis

Question 3

Why is the loose areolar layer known as the ‘danger area’?

Answer 3

It contains emissary veins that drain into the dural venus sinus

Question 4

What type of joint is the temporomandibular joint?

Answer 4

Synovial

Question 5

Name the three extra-capsular ligaments that stabilise the TMJ?

Answer 5

Stylomandibular ligament
Lateral ligament
Sphenomandibular ligament

Question 6

Name the two processes on the top of the mandible?

Answer 6

Condylar process

Coronoid process

Question 7

Which nerve travels within the mandibular foreman?

Answer 7

Inferior alveolar nerve

Question 8

What is the name of the lined on the inner aspect of the mandible and which muscle attaches here?

Answer 8

Mylohyoid line

Mylohyoid muscle

Question 9

Name the four muscles of mastication and state their actions upon the TMJ?

Answer 9

Temporalis - Retraction and Elevation
Masseter - Retraction and Elevation
Medial pterygoid - Elevation and Side/Side
Lateral pterygoid - Protrusion and Side/Side

Question 10

What is the nerve innervation of temporalis?

Answer 10

Deep temporal nerve (V3)

Question 11

What is the nerve innervation of masseter?

Answer 11

Masserteric nerve (V3)

Question 12

What is the nerve innervation of medial pterygoid?

Answer 12

Medial pterygoid nerve (V3)?

Question 13

Both the lateral and medial pterygoid muscles are attached to which bone?

Answer 13

The lateral pterygoid plate

Question 14

Name the artery that supplies the muscles of mastication, and name the point of entry into the cranium?

Answer 14

The middle meningeal, branch of the maxillary

Foreman spinosum

Question 15

Name the exit point of V3 from the cranium?

Answer 15

Foreman ovale

Question 16

Name the four branches of the anterior division of V3?

Answer 16

Anterior = Motor

1. Deep temporal
2. Masserteric
3. Lateral pterygoid
4. Buccal (sensory)

Question 17

Name the four branches of the posterior division of V3?

Answer 17

Posterior = Sensory

1. Ligual
2. Auriculotemporal
3. Inferior alveolar
4. Mylohyoid (motor)

Question 18

Name the nerve which hitches a lift off the Lingual branch of V3?

Answer 18

Chorda tympani - CN (VII) supplies the ANT 2/3 of the tongue with taste senstation