Scalp/Face/Parotid/Submandibular

Question 1

What are the layers of the scalp?

Answer 1

1. Skin
2. Subcutaneous tissue
3. Epicranial Aponeurosis and Occipitofrontalis muscle
4. Subaponeurosic tissue and
   Emissary veins
5. Pericranium

Question 2

What are the branches of CN V1?

Answer 2

• Supraorbital
• Supratrochlear
• External Nasal
• Infratrochlear
• Lacrimal

Question 3

What are the branches of CN V2 (Maxillary)

Answer 3

• Zygomaticofacial
• Infraorbital
• Zygomaticotemporal

Question 4

What are the branches of the Mandicular NErve (CN V3)

Answer 4

• Buccul
• Auricotemporal
• Mental

Question 5

What artery accompanies the Auriculotemporal branch of CN V3?

Answer 5

Superficial temporal artery of ECA

Question 6

What nerve supplies the skin over the angle of the mandible?

Answer 6

Great Auricular (C2)

Question 7

What would a lesion at or beyond the stylomastoid foramen produce?

Answer 7

LMN Bells Palsy

Ipsilateral upper/lower facial asymmetry

Question 8

What would produce damage to neuronal cell dues in corticobulbar tract?

Answer 8

UMN Bells Palsy

Loss of voluntary control of LOWER muscles of facial expression on contralateral side

Question 9

What are the branches of the facial nerve? Corresponding structures?

Answer 9

• Temporal (Frontalis and orbicularis oculi)
• Zygomatic (Orbicularis Oculi)
• Buccal (Upper lip and nostril)
• Mandibular (Lowe Lip)
• Cervical (Platysma)

Question 10

What is Bells Phenomenon?

Answer 10

Facial Nerve Damage:

When the patient attempts to close his/her eye, the eyeball rolls upwards and outwards

Question 11

What is the anastomoses between the ICA and ECA?

Answer 11

Angular Branch of Facial artery of ECA which runs over lower border of mandible connects with ophthalmic branches of ICA

Question 12

Where does the facial vein drain?

Answer 12

Facial vein —> Superior ophthalmic veins—> Cavernous sinus —> IJV

Question 13

What supplies the muscles of mastication? What are they?

Answer 13

• Masseter
• Temporalis
• Lateral Pterygoid
• Medial pterygoid

Question 14

Where is the Parotid duct located?

Answer 14

• Runs along the masseter
• Turns hardly to pierce Buccinator muscle
• Enters oral cavity opposite the crown of the 2nd maxillary molar tooth