TMJs

Question 1

Temporal bones form

Answer 1

inferolateral aspects of the skull parts of the cranial floor

Question 2

Major markings include the 5

Answer 2

zygomatic, styloid, mastoid processes, mandibular and middle cranial fossae

Question 3

Major openings include the 5

Answer 3

stylomastoid and jugular foramina the external and internal auditory meatuses, carotid canal

Question 4

Temporal bones ituated on each side of cranial base between - and -

Answer 4

greater wings of sphenoid and occipital bone

Question 5

Consist of 5

Answer 5

Squamous portion Tympanic portion Styloid process Zygomatic process Petromastoid portion which contain the organs for hearing and equilibrium

Question 6

Squamous portion is - & forms

Answer 6

hin, upper portion of temporal bone Forms part of side wall of cranium

Question 7

Zygomatic process is

Answer 7

prominent arched process that projects anteriorly to articulate with zygoma and complete the zygomatic arch

Question 8

Articular tubercle located on

Answer 8

inferior border of zygomatic process

Question 9

Articular tubercle Forms

Answer 9

anterior boundary of mandibular fossa

Question 10

Mandibular fossa receives

Answer 10

condyle of mandible to form temporomandibular joint (TMJ)

Question 11

Tympanic portion located Forms

Answer 11

below squama and in front of petromastoid portion

Question 12

Tympanic portion Forms

Answer 12

anterior wall, inferior wall and part of posterior walls of the EAM

Question 13

Styloid process

Answer 13

slender, pointed bone projecting inferiorly, anteriorly, and slightly medially from inferior surface of tympanic portion

Question 14

Petromastoid portion combines

Answer 14

petrous and mastoid portions

Question 15

Petromastoid portion forms

Answer 15

the inferior, posterior part of the temporal bone

Question 16

Petromastoid portion Articulates

Answer 16

with parietal bone at its superior border and with occipital bone at its posterior border

Question 17

Petromastoid portion contains

Answer 17

Usually contains air cells, which vary greatly in size, number, and pneumatization

Question 18

Mastoid process

Answer 18

conical process projecting from mastoid portion

Question 19

Petrous portion projects - between -

Answer 19

medially and anteriorly between greater wing of sphenoid and occipital bone

Question 20

Petrous portion aka

Answer 20

petrous pyramid

Question 21

Petrous portion shaped

Answer 21

Conical or pyramidal

Question 22

Thickest and densest portion of cranium

Answer 22

Petrous portion

Question 23

Contains the organs of hearing and balance

Answer 23

Petrous portion

Question 24

Auditory ossicles are

Answer 24

bones of middle ear

Question 25

Auditory ossicles 3 parts

Answer 25

Malleus Incus Stapes

Question 26

Temporal bone articulates with the

Answer 26

parietal, occipital, sphenoid, zygoma, and mandible

Question 27

B

Answer 27

B. Mastoid portion

Question 28

A

Answer 28

A. Squamous portion

Question 29

C

Answer 29

C. External acoustic meatus

Question 30

D

Answer 30

D. Tympanic portion

Question 31

E

Answer 31

E. Styloid process

Question 32

F

Answer 32

F. Mandibular fossa

Question 33

G

Answer 33

G. Articular tubercle

Question 34

H

Answer 34

H. Zygomatic process

Question 35

I

Answer 35

I. Petrous portion

Question 36