Ch. 1 - Skull

Question 1

What are the two components to the skull?

Answer 1

facial skeleton (viscerocranium) and cranial vault (neurocranium)

Question 2

How many bones are there in the facial and cranial component of the skull?

Answer 2

14 facial bones, 8 cranial bones

Question 3

The frontal view of the skull includes every skull bone except…

Answer 3

occipital and palatine bones

Question 4

Which bone is the only bone not directly attached to the skull?

Answer 4

mandible

Question 5

Which facial bone is diamond shaped?

Answer 5

zygomatic bone

Question 6

What is the name of the process located on the maxilla and mandible?

Answer 6

alveolar process (contains the teeth)

Question 7

What do the foramina located on the skull allow?

Answer 7

passage of nerves

Question 8

Which bone is responsible for ethnic facial features

Answer 8

zygomatic bone

Question 9

What makes up the zygomatic arch?

Answer 9

temporal process of the zygomatic bone + the zygomatic process of the temporal bone

Question 10

What are the names of the two sections of the temporal bone?

Answer 10

squamous (flat) and petrous (rocky)

Question 11

What makes up the temporal fossa?

Answer 11

squamous temporal bone with the greater wing of the sphenoid + lower portion of the parietal bone

Question 12

Where do the frontal bone and the parietal bone meet?

Answer 12

coronal suture

Question 13

Where do the parietal bone and the occipital bone meet?

Answer 13

lamboid suture

Question 14

What is the name of the area where the parietal, frontal, sphenoid, and temporal bones join?

Answer 14

pterion

Question 15

Where do the paired parietal bones unite?

Answer 15

sagital suture

Question 16

What feature of the occipital bone is responsible for muscle attachment?

Answer 16

superior nuchal line

Question 17

Where do the occipital condyles and the atlas articulate?

Answer 17

atlanto-occipital joint

Question 18

Where does the spinal cord pass through?

Answer 18

foramen magnum

Question 19

What separates the nasal choanae?

Answer 19

vomer bone

Question 20

What is the hard palate composed of?

Answer 20

palatine bones posteriorly + palatine processes of the maxilla anteriorly

Question 21

The pterygoid plates and the inferior orbital fissure are lateral to which feature?

Answer 21

choanae

Question 22

What is the floor of the anterior cranial fossa made up of?

Answer 22

horizontal plate of the frontal bone and the cribriform plate and crista galli

Question 23

What makes up the roof of the orbit?

Answer 23

horizontal plate of the frontal bone

Question 24

Which cranial fossa is butterfly shaped?

Answer 24

middle cranial fossa

Question 25

What is the central region of the sphenoid bone?

Answer 25

sella turcica (roof of sphenoid body)

Question 26

Where are the optic canals located?

Answer 26

between the anterior clinoid processes

Question 27

Which feature is anterior to the foramen magnum and runs up towards the sella turcica

Answer 27

clivus

Question 28

What do the grooves on the wall of the fossa indicate?

Answer 28

the course of the transverse and sigmoid sinuses

Question 29

What does the frontal bone contain?

Answer 29

frontal sinuses and the supraorbital notch

Question 30

Which bones form the walls and roof of the cranium?

Answer 30

parietal bones

Question 31

What are the main features of the occipital bone?

Answer 31

foramen magnum, hypoglossal canals, occipital condyles

Question 32

The auditory tube, middle ear and inner ear are part of which bone?

Answer 32

temporal bone

Question 33

The upper half of the temporal bone is __________ while the lower half is __________.

Answer 33

squamous, petrous

Question 34

Which bone has a vertical and horizontal plate and two lateral masses?

Answer 34

ethmoid bone

Question 35

These paired shell-shaped bones arise from the maxillae.

Answer 35

inferior concha

Question 36

How many bones are present in the superior alveolar process?

Answer 36

16

Question 37

The horizontal palatine process is the anterior _____ of the hard palate.

Answer 37

4/5

Question 38

What are the two foramina of the maxilla

Answer 38

infraorbital and incisive foramina

Question 39

Which bone is L shaped?

Answer 39

mandible or palatine

Question 40

The vertical arm of the mandible is called the ______ and the horizontal arm is called the ______.

Answer 40

ramus, body

Question 41

Where do the two halves of the mandible meet?

Answer 41

mental protuberance (point of the jaw)

Question 42

What do the condyloid processes articulate with?

Answer 42

mandibular fossa of the temporal bone

Question 43

Where does the nerve to the lower teeth pass through?

Answer 43

mandibular foramen

Question 44

The horizontal plate of the palatine bone is the _____ of the hard palate.

Answer 44

1/5

Question 45

The vertical plate of the palatine bone forms the posterior ___ of the lateral nasal wall

Answer 45

1/3

Question 46

Where are the tear ducts located?

Answer 46

lacrimal bone

Question 47

What shape is the vomer bone?

Answer 47

triangle

Question 48

Which bone hangs below the floor of the mouth?

Answer 48

hyoid bone

Question 49

What is suspended from the hyoid bone?

Answer 49

larynx