Viscerocranium pt 3

Question 1

posterior and inferior border of ramus meet at ______ ___ ______ or gonial angle

Answer 1

angle of mandible

Question 2

angle of mandible can also be called ____ angle

Answer 2

gonial

Question 3

degree of mandibular angle may be useful in ____ estimation

Answer 3

sex

Question 4

lateral aspect of mandibular angle is ridged for tendinous insertion of _______

Answer 4

Masseter

Question 5

medial aspect of mandibular angle is ridged for tendinous insertion of ____ ______

Answer 5

medial pterygoid

Question 6

true or false; there are 2 major pairs of muscles that move the mandible

Answer 6

false

Question 7

there are 4 major pairs of mm that move the mandible and are collectively known as the ______ _ ______

Answer 7

muscles of mastication

Question 8

elevators

Answer 8

mm that raise and retract mandible and bring teeth into occlusion (Masseter, Medial Pterygoid, and Temporalis close the mouth)

Question 9

what are the mandible elevators?

Answer 9

Masseter
medial pterygoid
Temporalis

Question 10

what are the mandible depressors?

Answer 10

lateral pterygoid

Question 11

depressors

Answer 11

muscles that open the mouth by lowering (depressing) and protracting mandible (lateral pterygoid)

Question 12

true or false; the force of gravity is also involved in mouth opening

Answer 12

true

Question 13

mastication forces are distributed superiorly and laterally as shown (around the maxillary sinuses, the nasal aperture, and the orbits), via _______ regions

Answer 13

buttressed

Question 14

what are the major mm of mastication?

Answer 14

temporalis
medial pterygoid
masseter
lateral pterygoid

Question 15

a _____ _____ is formed around the lateral and medial aspects of the mandibular angle by the Masseter and Medial Pterygoid mm

Answer 15

muscular sling

Question 16

what are the 2 origins of the Temporalis mm?

Answer 16

temporal fossa & temporalis fascia

Question 17

true or false; the Temporalis mm is bipennate

Answer 17

true

Question 18

Temporalis ____ and _____ mandible from depressed position

Answer 18

elevate ; retract

Question 19

hyoid bone is at level of ___ or____ vertebrae

Answer 19

C3, C4

Question 20

true or false; the bone of the ear ossicles is replaces

Answer 20

false; it is not replaced otherwise hearing would be altered