Ch 11 Joints of the Skull

Question 1

True or false: there are ligaments and movement involved with the suture joints

Answer 1

false

Question 2

What kind of joint are sutures of the skull?

Answer 2

fibrous joints

Question 3

What type of fibrous joints are sutures of the skull?

Answer 3

sutures

Question 4

The 4 sutures of the skull are the :

Answer 4

sagittal, frontal AKA coronal, lambdoid, and squamous sutures

Question 5

The _ suture is the articulation of the 2 parietal bones in the median plane of the skull.

Answer 5

sagittal

Question 6

The frontal suture AKA coronal suture is the articulation of the _ bones with the frontal bone

Answer 6

parietal

Question 7

The _ suture is the articulation of the parietal bones and the occipital bones.

Answer 7

lambdoid

Question 8

The _ suture is the articulation of the parietal bones with the temporal bones.

Answer 8

squamous

Question 9

All of the sutures articulate which bone/s?

Answer 9

the parietal bones

Question 10

The temporomandibular joint is what kind of joint?

Answer 10

synovial

Question 11

The synovial joint of the TMJ is a _ and _ joint.

Answer 11

hinge and plane

Question 12

The bony surfaces involved in the TMJ are the:

Answer 12

-mandibular fossa of the temporal bone
-the head AKA condyloid process of the mandible

Question 13

The one prominent intraarticular ligament of the TMJ is called the _ _.

Answer 13

articular disc

Question 14

The intraarticular disc of the TMJ is an oval plate of _ tissue that sometimes contains patches of _.

Answer 14

fibrous, fibrocartilage

Question 15

The articular capsule of the TMJ attaches to the _ of the disc.

Answer 15

circumference

Question 16

The articular disc of the TMJ divides the joint cavity into the _ and _ compartments

Answer 16

superior and inferior compartments

Question 17

The superior compartment of the TMJ cavity is located between the _ _ and the _ _.

Answer 17

articular disc and the mandibular fossa

Question 18

The inferior compartment of the TMJ cavity is located between the _ _ and the _.

Answer 18

articular disc and the mandible

Question 19

Hinge movement of the TMJ include:

Answer 19

-depression (inferior movement of mandible/ opens mouth)
-elevation (superior movement of mandible/ closes mouth)

Question 20

Planar movement of the TMJ include:

Answer 20

-protraction (anterior movement of mandible on horizontal plane)
-retraction (posterior movement of mandible on horizontal plane)
-lateral movement (side to side grinding movement)

Question 21

The bones of the fetal skull are not completely _ at birth.

Answer 21

ossified

Question 22

There are _ major unossified membranous areas between the cranial bones called fontanelles and they are:

Answer 22

6,
-anterior fontanelle
-posterior fontanelle
-anterolateral fontanelles AKA sphenoid fontanelles (2)
-posterolateral fontanelles AKA mastoid fontanelles (2)

Question 23

“fontanelle”=

Answer 23

little fountain

Question 24

The _ _ is the largest fontanelle and in adults this lies at the location of the _.

Answer 24

anterior fontanelle, bregma

Question 25

The _ fontanelle is triangular and in adults lies at the location of the lambda.

Answer 25

posterior fontanelle

Question 26

The anterior fontanelle is found at the junction of the _ and _ sutures.

Answer 26

coronal AKA frontal sutures and the sagittal sutures

Question 27

The posterior fontanelle is found at the junction of the _ and _ sutures.

Answer 27

lambdoid and sagittal sutures

Question 28

Which 2 fontanelles have the sagittal suture as part of their junction point?

Answer 28

anterior and posterior

Question 29

The anterolateral AKA sphenoid fontanelles are small irregular fontanelles found at the junction of the _, _, _, and _ bones.

Answer 29

frontal AKA coronal, parietal, sphenoid, and temporal bones

Question 30

The posterolateral AKA mastoid fontanelles are small irregular fontanelles found at the junction of the _, _, and _ bones.

Answer 30

occipital, parietal, and temporal bones.

Question 31

Both posterolateral fontanelles touch a total of _ bones.

Answer 31

5
-occipital (1) + parietal (2) + temporal (2) = 5

Question 32

True or false: The anterior and posterior fontanelles touch a total of 4 bones each.

Answer 32

False,
3 bones each!
-anterior: frontal (1) + parietal (2)= 3
-posterior: occipital (1) + parietal (2) =3

Question 33

The anterior fontanelle helps the physician determine 3 things:

Answer 33

-position of fetal head in utero
-development of the skull
-extent of pathological intracranial pressure

Question 34

The last fontanelle to ossify is the _ fontanelle at about _ years of age.

Answer 34

anterior, 2 years old

Question 35

“soft spot”=

Answer 35

anterior fontanelle in babies