Week 2 RS

Question 1

what two disctince structure parts is the skull composed of?

Answer 1

the neurocranium and the

viscerocranium.

Question 2

what is the neurocranium?

Answer 2

neurocranium, which is the part that encloses the brain

Question 3

what forms the neurocranium

Answer 3

the frontal, ethmoid, sphenoid, occipital, temporal and parietal bones

Question 4

shape of the neurocranium

Answer 4

dome-like roof,

the calvaria and an irregular floor, the skull base or basicranium

Question 5

what is the viscerocranium

Answer 5

The viscerocranium is the

skeleton of the face

Question 6

what forms the viscerocranium

Answer 6

e maxilla, mandible, inferior nasal conchae, nasal,

lacrimal, vomer, ethmoid, zygomatic and palatine bones.

Question 7

list the bones of the skull

Answer 7

ethmoid  parietal 
frontal  sphenoid 
lacrimal  temporal 
mandible  vomer 
maxilla  zygomatic 
nasal  occipital

Question 8

pneumatic bones of the skull

Answer 8

ethmoid, maxilla, sphenoid, temporal and frontal bones are pneumatic

Question 9

what are the primary muscles of mastication?

Answer 9

pterygoids, masseter and temporali

Question 10

what are surtures

Answer 10

.The bones of the adult skull are united by fibrous interlocking joints known as suture

Question 11

what are the sutures of the skull

Answer 11

coronal  parietomastoid 
sagittal  occipitomastoid 
lambdoid  temporoparietal

Question 12

what is the tmj

Answer 12

The temporomandibular joint is an atypical synovial joint with articular surfaces covered by
fibrocartilage

Question 13

what is the tmj separated into?

Answer 13

. The joint is also separated into two cavities (superior and inferior) by a
fibrocartilage disc.

Question 14

what is unteresting about the two joints of the tmj

Answer 14

Although there are two joints they function as though they were a single
articulation with movement at one joint always involving the other

Question 15

what is the viscerocranium of the infant like compared the the neurocranium?

Answer 15

small viscerocraniu,m

Question 16

what does the neurocranium of the infatn gave that allows vaginal delivery

Answer 16

several membranous joints which enable moulding of the head

to allow vaginal delivery, and which facilitate the remodelling of the skull as the brain develops

Question 17

what is the largest of the infant membranous joints?

Answer 17

fontanelles

Question 18

where do fontanelles occur

Answer 18

between the angles of the flat

bones of the calvaria.

Question 19

what forms the orbital margins

Answer 19

frontal, maxilla and zygomatic bones

Question 20

what dorms the bony nasal bridge?

Answer 20

frontal bone, frontal process of the

maxilla and nasal bones.

Question 21

what is anterior to the tragus of the ear?

Answer 21

temporomandibular joint

Question 22

which muscle is attached to the mastoid process?

Answer 22

sternocleidomastoid

Question 23

what is the pterion

Answer 23

an H-shaped suture, located superior to the zygomatic arch,

Question 24

what is the Pteriorn formed by?

Answer 24

the union of

the frontal, temporal, parietal and sphenoid (greater wing) bones.