skull

Question 1

what are the 2 categories of the skeleton

Answer 1

axial skeleton (skull, vertebral column and thoracic cage) and
appendicular skeleton (UE, LE, pelvic girdle)

Question 2

how many bones of the skull are there

Answer 2

22 bones; 8 cranial and 14 facial

Question 3

what kind of joint are most of the sutures on the skull

Answer 3

synarthrosis sutural joint (gives very little mvt)

Question 4

what are the 4 different sinuses in the skull

Answer 4

maxillary, ethmoid, sphenoid and frontal

Question 5

what are the 3 fossaes of the skull

Answer 5

cranial, nasal and orbital

Question 6

what is inside the cranial fossae

Answer 6

the brain

Question 7

what is inside the nasal fossae

Answer 7

nasal cavity

Question 8

what is inside the orbital fossae

Answer 8

eyeball

Question 9

what encloses and protects the brain

Answer 9

the cranium

Question 10

the cranium provides attachment for what muscles

Answer 10

muscles of the scalp, lower jaw, neck and back

Question 11

what are the 8 bones of the cranium

Answer 11

sphenoid, frontal, parietal (2), ethmoid, temporal (2) and occipital

Question 12

what bone forms the ant part of the skull and the sup part of orbit

Answer 12

the frontalb.

Question 13

what bone forms the lateral aspect of the cranium and that join on top of the skull to form the sagittal suture

Answer 13

the parietal b.

Question 14

what 2 bones form the coronal suture

Answer 14

frontal and parietal

Question 15

what bones form the lambdoidal suture

Answer 15

parietal and occipital bones

Question 16

what bone forms the posterior wall and floor of cranium

Answer 16

occipital b

Question 17

what are fontanels

Answer 17

thin fibrous membranes that has the brain deep to it; if it fuses early it can later on cause a pointed skull

Question 18

what bones is found below the parietal bones and unites with them at the squamosal suture

Answer 18

temporal b.

Question 19

what bone is a butterfly shaped that forms the lower lateral wall of cranium, part of the floor of cranium and post wall of orbit

Answer 19

sphenoid b.

Question 20

what bone is crista galli a part of

Answer 20

ethmoid b.

Question 21

in what structure do the ethmoid sinuses lie

Answer 21

in the nasal conchae

Question 22

how many facial bones are there

Answer 22

14 total; 13 immoveable and 1 moveable lower jaw

Question 23

the facial bones provide attachment for what muscles

Answer 23

the muscles that control facial expressions and move the jaw

Question 24

what bone forms the upper jaw, and helps form the floor of orbit, roof of mouth, walls and floor of nasal cavity

Answer 24

the maxillary bone

Question 25

what bone is L shaped and is post to maxillary (forms the post roof of mouth, floor of nasal cavity and lateral wall of nasal cavity)

Answer 25

palatine bones

Question 26

what bone forms part of cheekbones and orbit and makes up part of the zygomatic arch

Answer 26

the zygomatic bone

Question 27

what 2 bones and structures make up the zygomatic arch

Answer 27

the temporal process of the zygomatic b and the zygomatic process of the temporal b

Question 28

what bone is small and rectangular and join at midline to form a bridge of nose between orbits

Answer 28

nasal n.

Question 29

what bone id posterior and lateral to nasal and maxillary bones and forms part of the orbit’s medial wall

Answer 29

the lacrimal bone

Question 30

what bone is located along the midline within the nasal cavity and forms part of the nasal septum

Answer 30

the vomer

Question 31

what structure is attached to the lateral wall of the nasal cavity and is found below the sup and middle nasal conchae

Answer 31

inferior nasal conchae

Question 32

what bone is the only moveable bone of the skull and that articulates with the temporal b.

Answer 32

the mandible

Question 33

what bone is the unique part of the axial skeleton and doesn’t articulate with any other b

Answer 33

hyoid b.

Question 34

what is the hyoid b suspended on

Answer 34

its suspended on the styloid process by m. and lig. (its located below mandible and above larynx)

Question 35

what supports the tongue and provides attachment for some of its m.

Answer 35

the hyoid b.