Lab1: Axial Skeleton (Chapter 6)

Question 1

What are the 8 cranium bones?

Answer 1

Frontal (1)
Parietal (2)
Temporal (2)
Occipital (1)
Sphenoid (1)
Ethmoid (1)

Question 2

What are the 14 facial bones?

Answer 2

Mandible (1)
Maxilla (2)
Palatine (2)
Zygomatic (2)
Lacrimal (2)
Nasal (2)
Vomer (1) 
Inferior nasal concha (2)

Question 3

what bones are separated at the sagittal suture?

Answer 3

the left and right parietal bones

Question 4

what bones are separated at the coronal suture?

Answer 4

the frontal bone and both the parietal bones

Question 5

what bones are separated at the frontonasal suture?

Answer 5

the frontal bone and both the nasal bones

Question 6

what bones are separated at the squamous suture?

Answer 6

located on each side of the skull and connected the temporal and parietal bones on each side

Question 7

what bones are separated at the lambdoid suture?

Answer 7

the occipital bone and the parietal bones

Question 8

what bones are separated at the occipitomastoid suture?

Answer 8

?

Question 9

the occipital, parietal, and frontal bones form the “skullcap” which is known as the what?

Answer 9

calvaria (cranial vault)

Question 10

What bone does not articulate with any other bone? where is it located?

Answer 10

Hyoid bone

it lies inferior to the skull and is suspended by the stylohyoid ligaments

Question 11

What 7 bones make up the orbital complex?

Answer 11

frontal bone 
maxilla
lacrimal 
ethmoid
sphenoid 
palatine
zygomatic

Question 12

what 8 bones make up the nasal complex?

Answer 12

frontal
sphenoid
ethmoid
vomer
nasal septum
inferior nasal conchae
lacrimal

Question 13

what bones contain the paranasal sinuses?

Answer 13

frontal
sphenoid
ethmoid
maxillae

Question 14

what does articulation mean?

Answer 14

Joint

Question 15

what does brachium mean?

Answer 15

upper arm

Question 16

what does antebrachium mean?

Answer 16

lower arm

Question 17

what does costa mean?

Answer 17

rib

Question 18

what does suture mean?

Answer 18

fibrous joint between flat bones of the skull

Question 19

what are fontanels?

Answer 19

Areas of fibrous connective tissue that connect bones of cranium that allow for distortion of skull during birth

Question 20

what is the largest fontanel and where is it located?

Answer 20

anterior

lies at the intersection of the frontal, sagittal, and coronal sutures

Question 21

where is the posterior fontanel located?

Answer 21

the junction between the lambdoid sutures and the sagittal suture

Question 22

where is the sphenoidal fontanel located?

Answer 22

the junction between squamous and coronal sutures

Question 23

______ spinal curves develop before birth and ________spinal curves develop after birth

Answer 23

Primary

Secondary

Question 24

What are the 2 primary and the 2 secondary spinal curvatures?

Answer 24

Primary:
thoracic
sacral
Secondary:
cervical 
lumbar

Question 25

describe the cervical curve

Answer 25

develops as the infant learns to balance the weight of the head on the vertebrae of the neck

Question 26

describe the thoracic curve

Answer 26

accommodates the thoracic organs

Question 27

describe the lumbar curve

Answer 27

balances the weight of the trunk over the lower limbs; it develops with the ability to stand

Question 28

describe the sacral curve

Answer 28

accommodates the abdominopelvic organs

Question 29

how many cervical, thoracic, and lumbar vertebra are there?

Answer 29

cervical=7
thoracic=12
lumbar=5

Question 30

what are the names for c1 and c2

Answer 30

c1=atlas

c2=axis

Question 31

how many pairs of “true” ribs are there?

what is the other name for these?

Answer 31

7 (1-7); vertebrosternal

*attach directly to the sternum

Question 32

how many pairs of “false” ribs are there?

what is the other name for these?

Answer 32

3 (8-10); vertebrochondral

*do not attach directly to the sternum; fuse together before reaching the sternum

Question 33

how many pairs of “floating” ribs are there?

what is the other name for these?

Answer 33

2 (11-12); Vertebral

*have no connection with the sternum