Face, Scalp and Parotid Region

Question 1

Facial Skeleton
Viscerocranium

Answer 1

Nasal Bone (2)
Lacrimal (2)
Platine (2)
Vomer
Maxilla (2)
Mandible
Inferior nasal bone (2)
Zygomatic (2)

Question 2

Foramina of Facial Skeleton

Answer 2

Supraorbital
Infraorbital
Mental
Zygomaticofacial
Zygomaticotemporal

Question 3

Facial muscles develop from

Answer 3

Mesoderm in the 2nd pharyngeal arch

Question 4

Motor innervation is from

Answer 4

Facial Nerve

Question 5

Sensory innervation is from

Answer 5

Trigeminal Nerve

Question 6

Muscles of Facial Expression
Occipitofrontalis

Answer 6

Frontal belly:
Pulls the scalp anteriorly
Wrinkles the forehead
Protects the scalp
Elevates the eyebrows
Motor Supply by the temporal branch of CN VII

Occipital Belly:
Pulls the scalp posteriorly smoothing the forehead
Motor supply by the posterior auricular nerve of CN VII

Question 7

Muscles of Facial Expression
Platysma

Answer 7

Thin Sheet muscle located in the superficial fascia of the neck
From the base of the mandible, cheek, lower lip, angle of the mouth and orbicular ores to the deltopectoral fascia

Function:
Tenses the skin producing vertical skin ridges
Helps depress the mandible and draw the corner of the mouth inferiorly

Motor innervation:
Cervical branch of VII

Sensory innervation:
Transverse cervical nerve
Supraclavicular nerves

Question 8

Muscles of Facial Expression: related to the ear

Answer 8

Auricularis muscles:
Three fan shaped extrinsic muscles of the ear
1. Anterior
Draws the auricular forward and upward