Chp 11 Joints of skull

Question 0

What is the articulation of the 2 parietal bones in the median plane of the skull?

Answer 0

Sagittal suture

Question 1

What type of joint is are the sutures of the skull classified as?

Answer 1

Fibrous Joint

Question 2

What is the articulation of the parietal bones with the frontal bone? both names?

Answer 2

Frontal (coronal) suture

Question 3

What is the articulation of the parietal bones with the occipital bone?

Answer 3

Lambdoid suture

Question 4

What is the articulation of the parietal and temporal bone?

Answer 4

Squamous suture

Question 5

Is there any movement of ligaments at the suture joints?

Answer 5

NO!

Question 6

What is the classification of the Temporomandibular joint?

Answer 6

Synovial, combined hinge and plane type

Question 7

What are the two bony surfaces that come together to make the TMJ?

Answer 7

Mandibular Fossa of the temporal bone and Head (condyloid process) of the mandible (pg. 72)

Question 8

What is the 1 prominent intraarticular ligament of the TMJ?

Answer 8

Articular disc (pg. 72)

Question 9

The articular disc is an (blank 1) plate of fibrous tissue that sometimes contains patches of (blank 2)?

Answer 9

1. oval

2. fibrocartilage

Question 10

The circumference of the articular disc attaches to what?

Answer 10

the articular capsule (pg. 72)

Question 11

The articular disc divides the joint cavity into two separate compartments called what?

Answer 11

1. superior compartment- between articular disc and mandibular fossa of temporal bone.
2. inferior compartment- between the articular disc and head of the mandible.

Question 12

What are the 2 hinge movements of the TMJ?

Answer 12

Depression

Elevation

Question 13

What is depression of the TMJ?

Answer 13

inferior movement of the mandible (open the mouth)

Question 14

What is elevation of the TMJ?

Answer 14

Superior movement of the mandible (close the mouth)

Question 15

What are the types of Planar movements of the TMJ?

Answer 15

Protraction
Retraction
Lateral movement

Question 16

What is Protraction of the TMJ?

Answer 16

Anterior movement of the mandible in a horizontal plane (pg. 73)

Question 17

What is retraction of the TMJ?

Answer 17

Posterior movement of the mandible in a horizontal plane (pg. 73)

Question 18

What is Lateral movement of the TMJ?

Answer 18

Side to side movement (Grinding)

Question 19

Are the bones of the fetal skull fully ossified at birth?

Answer 19

No

Question 20

What are the 6 unossified, membranous areas between the cranial bones of the fetal skull called?

Answer 20

Fontanelles (fontanelle= a little fountain in french) (pg. 73)

Question 21

What is the largest of the fontanelles located at the junction of the coronal and sagittal sutures?

Answer 21

Anterior Fontanelle (pg. 73)

Question 22

What is the location of the anterior fontanelle called in adults?

Answer 22

the bregma

Question 23

What is the triangular fontanelle located at the junction of the lambdoid and sagittal sutures?

Answer 23

posterior fontanelle (pg. 73)

Question 24

What is the posterior fontanelle called in adults?

Answer 24

Lambda

Question 25

What are the small irregular fontanelles located at the junction of the frontal, parietal, sphenoid, and temporal bones? 2 Names?

Answer 25

Anterolateral fontanelles (sphenoid fontanelles) (pg. 73)

Question 26

What are the small irregular fontanelles located at the junction of the occipital, parietal, and temporal bones? 2 Names?

Answer 26

Posterolateral fontanelles (mastoid fontanelles)

Question 27

What 3 things is the anterior fontanelle useful to the physician in determining?

Answer 27

1. The position of the fetal head utero
2. The development of the skull
3. The extent of pathological intracranial pressure

Question 28

Unlike all other fontanelles, which ossify within a few months, this fontanelle becomes bony at 2 years of age?

Answer 28

Anterior fontanelle (pg. 73)