DEEP FACE

Question 1

what is the function of the muscles of mastication? what are they innervated by?

Answer 1

move the mandible

mandibular branch V3

Question 2

what are the muscles of mastication?

Answer 2

temporalis m
masseter m
medial pterygoid m
lateral pterygoid m

Question 3

what type of muscle is the masseter m?

Answer 3

multipinate muscle

Question 4

what is the origin of the medial pterygoid m?

Answer 4

medial surface of the lateral pterygoid plate

Question 5

what is the origin of the lateral pterygoid m? remember there is the superior and inferior belly?

Answer 5

infra temporal surface of the greater wing of the sphenoid

lateral surface of the lateral pterygoid plate

Question 6

this fossa is below and medial to the zygomatic arch; good place to inject anesthesia?

Answer 6

infra temporal fossa

Question 7

what nerves run through the infratemporal fossa?

Answer 7

branches of the V3 and chorda tympani of CN VII

Question 8

this is a deep arterial supply and supplies the entire deep face; a fracture to the high mandible causing blood flow lost to the entire face

Answer 8

maxillary artery

Question 9

what are the portions of the maxillary artery?

Answer 9

mandibular portion
pterygoid portion
pterygopalatine portion

Question 10

what are the branches of the maxillary?

Answer 10

deep auricular a
anterior tympanic a
middle meningeal a
inferior alveolar a
accessory meningeal a

masseteric a
pteryogoid a
deep temporal a
buccal a

sphenopalatine a
descending palatine a
infraorbital a
pharyngeal a
middle superior alveolar a
posterior superior alveolar a
anterior superior alveolar a
artery of pteryogid canal