The Face

Question 1

what are the muscles of mastication?

Answer 1

masseter
temporalis
medial pterygoid
lateral pterygoid

Question 2

what is the function of masseter?

Answer 2

elevate the mandible

Question 3

what is the function of temporalis?

Answer 3

retract the mandible

Question 4

what is the function of the medial and lateral pterygoids?

Answer 4

protract the mandible

Question 5

what nerve innervates the muscles of mastication?

Answer 5

mandibular branch of trigem

Question 6

what are the muscles of facial expression?

Answer 6

frontalis (anterior & posterior bellies)
orbicularis oculi (orbital & palpebral parts)
nasalis
levator anguli oris
levator labii superioris
zygomaticus major
zygomaticus minor
risouris
depressor anguli oris
depressor labii inferioris
orbicularis oris
mentalis
buccinator
platysma

Question 7

what nerve innervates the muscles of facial expression and what are its motor branches?

Answer 7

CN7
temporal
zygomatic
buccal
mandibular
cervical

Question 8

Keisselbach’s plexus is an anastamosis of which vessels?

Answer 8

anterior ethmoidal artery (ophthalmic)
posterior ethmoidal artery (ophthalmic)
sphenopalatine artery (maxillary)
greater palatine artery (maxillary)
septal branch of superior labial artery (facial)

Question 9

what are the branches of the ECA?

Answer 9

Some Anatomists Like Freaking Out Poor Medical Students

superior thyroid
ascending pharyngeal
lingual
facial
occipital
posterior auricular
maxillary
superficial temporal

Question 10

what is the venous drainage of the face?

Answer 10

superficial temporal + maxillary –> retromandibular
anterior retromandibular + facial = common facial –> IJV
posterior retromandibular + posterior auricular = EJV