Ch. 10 Bones of the Skull

Question 1

Functions of the skull

Answer 1

PCOM!
Protection cavity for the brain
Cavities to house sensory organs
Opening for air and food passage
Mastication

Question 2

How many bones are in the skull?

Answer 2

22, both paired and unpaired. Grouped into cranial and facial bones.

Question 3

Immovable joints

Answer 3

sutures

Question 4

Which is the only bone joined by a synovial joint?

Answer 4

Mandible

Question 5

The 8 bones that encase and protect the brain.

Answer 5

Cranial bones

Question 6

How many cranial bones are there?

Answer 6

8

Question 7

Superior portion of the cranium is also referred to as ___

Answer 7

calvaria

Question 8

A flat bone at the posterior inferior aspect of the cranium

Answer 8

Occipital

Question 9

Large foramen at the base of the skull near the anterior aspect of the occipital bone through which the spinal cord enters the cranium.

Answer 9

Foramen magnum

Question 10

Structures on the occipital bone

Answer 10

External occipital protuberance (occiput)
Superior nuchal line
Inferior nuchal line
Occipital condyles
Basilar part 

NOOB (nuchal, occiput, occipital condyles, basilar part)

Question 11

Large, prominent eminence on the posterior midline of the occipital bone.

Answer 11

External occipital protuberance (occiput)

Question 12

Curved ridge extending laterally from the occiput

Answer 12

Superior nuchal line

Question 13

Curved ridge that parallels the superior nuchal line and extends laterally from the occiput

Answer 13

Inferior nuchal line

Question 14

Prominent oval projections at the anterolateral aspects of the foramen magnum that articulate with the first cervical vertebrae.

Answer 14

Occipital condyles

Question 15

Part of the occipital bone that lies anterior to the foramen magnum and articulates with the sphenoid bone. Its superior surface is called the Clivus.

Answer 15

Basilar part

Question 16

Superior surface of the basilar part

Answer 16

Clivus

Question 17

Bones forming a large part of the walls of the skull

Answer 17

parietal

Question 18

Bones located at the lateral and superior aspect of the cranium

Answer 18

parietal

Question 19

Bone of the forehead

Answer 19

frontal

Question 20

located at the anterior and superior aspect of the cranium anterior to the parietal bones. forms the roof of the orbits.

Answer 20

frontal

Question 21

Structures on the frontal bone

Answer 21

Suparorbital margin
Supraorbital notch or foramen
Squamos part
Frontal sinus
FSSS

Question 22

Bones lying at the lateral aspect of the cranium, inferior to the parietal bones

Answer 22

temporal

Question 23

Weakest cranial bone

Answer 23

temporal

Question 24

Part of the frontal bone that forms the superior border of the orbit.

Answer 24

Supraorbital margin

Question 25

Small notch or hole respectively, is found at the medial third of the supraorbital margin

Answer 25

Supraorbital notch or foramen

Question 26

Forehead part of the frontal bone

Answer 26

squamous part

Question 27

Space that lies between the orbital and the squamous parts of the frontal bone

Answer 27

frontal sinus

Question 28

Structures of the temporal bone

Answer 28

``` Squamous part Zygomatic process Zygomatic arch Mandibular process Mastoid process External auditory meatus Styloid process Petrous portion of temporal bone SZZMMESP ```

Question 29

Thin, scalelike, superior expansion of the temporal bone forming the part of the lateral cranial wall

Answer 29

Squamous part of the temporal bone

Question 30

Long, thin bone that extends anteriorly from the anteroinferior aspect of the squamous part of the temporal bone to articulate with the zygomatic bone.

Answer 30

Zygomatic process

Question 31

Arch formed by zygomatic bone and zygomatic process

Answer 31

Zygomatic arch

Question 32

Oval depression for articulation with the mandible, specifically the condyloid process of the mandible.

Answer 32

Mandibular Fossa

Question 33

the breast-shaped projection extending inferiorly from he posterior aspect of the mastoid part

Answer 33

mastoid process

Question 34

Large canal posterior to the mandibular fossa that opens into the ear

Answer 34

external auditory meatus

Question 35

another name for external auditory meatus

Answer 35

external acoustic meatus

Question 36

Long, slender, pencil-like process antermedial to the external auditory meatus that extends inferiorly

Answer 36

Styloid process

Question 37

Hard, wedge-shaped portion between the occipital and sphenoid bones that houses the middle and inner ear

Answer 37

Petrous portion of the temporal bone

Question 38

Why is the sphenoid bone called the sphenoid?

Answer 38

Wedged between the cranial and facial bones

Question 39

Bone that forms the base of the cranium anterior to the temporal and occipital bones; also forms the floor and lateral walls of the orbit

Answer 39

Sphenoid

Question 40

Structures on the sphenoid bone

Answer 40

``` Body Sella turcica Greater wings Lesser wings Pterygoid processs ``` Brody seduced Genny into Letting him Party

Question 41

Cubical portion of the sphenoid in the midline of the base of the cranium anterior to the occipital bone. Hollowed out to form two sphenoid air sinuses

Answer 41

Body of the sphenoid

Question 42

Deep depression on the superior aspect of the body of the sphenoid.

Answer 42

Sella turcica

Question 43

Posterior border of sella turcica is formed by the _____

Answer 43

dorsal sellae

Question 44

Indentation in the sella turcica housing the pituitary gland

Answer 44

Hypophyseal fossa

Question 45

Two broad lateral extensions from the body of the sphenoid. Contains openings including the foramen rotunda, oval, and spinousum.

Answer 45

Greater wing

Question 46

Where does the middle meningeal artery pass?

Answer 46

Foramen spinosum

Question 47

Which foramens are in the greater wing of the spenoid

Answer 47

Foramen rotunda Ovale Spinosum

Question 48

Thin triangular projections that extend into the posterior wall of the orbit and form the anterior aspect of the superior surface of the body

Answer 48

Lesser wing

Question 49

Extends inferiorly from the junction of the greater wing of the body.

Answer 49

Pterygoid process

Question 50

Separates the medial and lateral pterygoid plate

Answer 50

pterygoid fossa

Question 51

Lies laterally to the choanae

Answer 51

medial pterygoid

Question 52

Sievelike bone at anterior base of the cranium between two orbits.

Answer 52

Ethmoid

Question 53

Structure sof ethmoid

Answer 53

``` Cribiform plate Perpendicular plate Lateral mass Middle nasal concha Superior nasal concha ```

Question 54

Forms the anterior aspect of the cranium and has numerous foramina for the passage of nerve fibers.

Answer 54

Cribirom plate

Question 55

Cribiform plate surrounds the base of the ____

Answer 55

crista galli

Question 56

thin plate perpendicular to and extends inferiorly from the crbiform plate to form the superior aspect of the nasal septum

Answer 56

Perpendicular plate

Question 57

Consists of lateral aspects of the ethmoid made of large air cells forming part of the orbit.

Answer 57

Lateral mass

Question 58

Free, convoluted inferior margin of the medial plate of the lateral mass

Answer 58

middle nasal concha

Question 59

part of the lateral mass superior to the middle nasal concha. Difficult to see from an anterior view of skull.

Answer 59

Superior nasal concha

Question 60

How many facial bones are there?

Answer 60

14

Question 61

Bone forming the upper jaw

Answer 61

maxilla

Question 62

Structures of the maxilla

Answer 62

Body Alveolar process Palatine process Infraorbital foramen BAPI!

Question 63

Pyramidal in shape, contains a large air sinus

Answer 63

Body (contains maxillary sinus)

Question 64

The arch on the inferior border of the maxilla; it bears cavities into which the teeth of the upper jaw are set.

Answer 64

Alveolar process

Question 65

Found on the anterior surface of the body inferior to the infraorbital margin

Answer 65

Infraorbital foramen

Question 66

Lower jaw bone

Answer 66

Mandible

Question 67

Hose-shoe shaped bone consisting of a horizontal body and paired rami which are perpendicular to the body

Answer 67

mandible

Question 68

Structures of the mandible

Answer 68

``` Alveolar process Mental foramen Angle Condyloid process Neck Coronoid process Mandibular foramen ```

Question 69

Arch on the superior border of the body into which the teeth of the lower jaw are set

Answer 69

Alveolar process

Question 70

Foramen on the lateral aspect of the body, inferior to the second premolar tooth

Answer 70

mental foramen

Question 71

Formed by the intersection of the ramus and the body of the mandible.

Answer 71

Angle

Question 72

Sits on the superior border of the ramus and articulates with the mandibular fossa of the temporal bone

Answer 72

condyloid process

Question 73

Constricted area of the ramus inferior to the head of the mandible

Answer 73

Neck of the mandible

Question 74

Found on the superior border of the ramus

Answer 74

Coronoid process

Question 75

Large central foramen on the medial surface of the ramus, holds the inferior alveolar nerve

Answer 75

Mandibular foramen

Question 76

Bones helping form the zygomatic arch that connects the zygomatic and temporal bones

Answer 76

Zygomatic Bones

Question 77

Irregular bones that form part of the lateral wall and floor of the orbit

Answer 77

Zygomatic bones

Question 78

Bones helping form the nose

Answer 78

nasal bones

Question 79

Two small bones form the anterior and superior aspect of the nose, inferior to the frontal bone

Answer 79

nasal bones

Question 80

Thin, small irregular bones form the anterior portion of the medial wall of the orbit

Answer 80

lacrimal

Question 81

Small, curved, irregular shell-like bone, that extends horizontally along the lateral nasal wall superior to the hard palate

Answer 81

Inferior nasal conchae (turbinate)

Question 82

Irregular bones form the posterior portion of the hard palate posterior to the maxilla

Answer 82

Palatine

Question 83

Vertical irregular bone in the median plane extending between the hard palate inferiorly and the sphenoid and ethmoid superiorly.

Answer 83

Vomer