Bones of the skull and markings

Question 1

forms forehead, superior part of orbits, and most of the anterior cranial fossa; contains sinuses

Answer 1

frontal bone

Question 2

form most of the superior and lateral aspects of the skull

Answer 2

parietal

Question 3

forms posterior aspect and most of the base of the skull

Answer 3

occipital

Question 4

allows the supraorbital arteries and nerves to pass

Answer 4

supraorbital foramina (notches)

Question 5

allows passage of the spinal cord from the brain stem to the vertebral canal

Answer 5

foramen magnum

Question 6

allow passage of he hypoglossal nerves (cranial nerve XII)

Answer 6

hypoglossal canals

Question 7

articulate with the atlas (first vertebra)

Answer 7

occipital condyles

Question 8

sites of muscle attachments on the occipital bones

Answer 8

external occipital protuberance and nuchal lines

Question 9

attachment site of ligamentum nuchae

Answer 9

external occipital crest

Question 10

form inferolateral aspects of the skull and contribute to the middle cranial fossa; have squamous, tympanic, and petrous parts

Answer 10

temporal

Question 11

helps to form the zygomatic arch, which forms the prominence of the cheek

Answer 11

zygomatic process

Question 12

articular point of the condylar process of the mandible

Answer 12

mandibular fossa

Question 13

canal leading from the external ear to the eardrum

Answer 13

external acoustic meatus

Question 14

attachment site for several neck muscles and for a ligament to the hyoid bone

Answer 14

styloid process

Question 15

attachment site for several neck and tongue muscles

Answer 15

mastoid process

Question 16

allows cranial nerve VII (facial nerve) to pass

Answer 16

Stylomastoid foramen

Question 17

allows passage of the internal jugular vein and cranial nerves IX, X, and XI

Answer 17

jugular foramen

Question 18

allows passage of the internal cartid artery

Answer 18

carotid canal

Question 19

hypophyseal fossa portion is the seat of the pituitary gland

Answer 19

sella turcica

Question 20

allows passage of optic nerves (cranial nerves II) and the ophthalmic arteries

Answer 20

optic canals

Question 21

allows passage of cranial nerves III, IV, VI, part of V (ophthalmic division), and ophthalmic vein

Answer 21

superior orbital fissures

Question 22

allows passage of the maxillary division of cranial verve V

Answer 22

foramen rotundum

Question 23

allows passage of the mandibular division of cranial nerve V

Answer 23

Foramen oval

Question 24

allows passage of the middle meningeal artery

Answer 24

foramen spinosum

Question 25

Keystone of the cranium; contributes to the middle cranial fossa and orbits; main parts are the body, greater wings, lesser wings, and pterygoid processes

Answer 25

sphenoid

Question 26

Helps to form the anterior cranial fossa; forms part of the nasal septum and the lateral walls and roof of the nasal cavity; contributes to the medial wall of the orbit

Answer 26

ethmoid bone

Question 27

attachment point for the falx cerebri, a dural membrane fold

Answer 27

crista galli

Question 28

allow passage of filaments of the olfactory nerves (cranial nerve I)

Answer 28

cribriform plates

Question 29

form part of lateral walls of nasal cavity; increase turbulence of air flow

Answer 29

superior and middle nasal conchae

Question 30

found in middle ear cavity; involved in sound transmission

Answer 30

auditory ossicles

Question 31

name the bones in the auditory ossicles

Answer 31

malleus, incus, and stapes

Question 32

the lower jaw

Answer 32

mandible

Question 33

insertion points for the temporalis muscles

Answer 33

coronoid processes

Question 34

articulate with the temporal bones in the temporomandibular joints of the jaw

Answer 34

condylar processes

Question 35

medial fusion point of the mandibular bones

Answer 35

mandibular symphysis

Question 36

sockets for the teeth

Answer 36

dental alveoli

Question 37

permit the inferior alveolar nerves to pass

Answer 37

mandibular foramina

Question 38

allow blood vessels and nerves to pass to the chin and lower lip

Answer 38

mental foramina

Question 39

help form the zygomatic arches

Answer 39

zygomatic processes

Question 40

form the anterior hard palate; meet medially in the intermaxillary suture

Answer 40

palatine processes

Question 41

forms part of lateral aspect of the bridge of the nose

Answer 41

frontal process

Question 42

permits blood vessels and nerves to pass through anterior hard palate (fused palatine processes)

Answer 42

incisive fossa

Question 43

permits maxillary branch of cranial nerve V, the zygomatic nerve, and blood vessels to pass

Answer 43

inferior orbital fissure

Question 44

allows passage of infraorbital nerve to skin of face

Answer 44

infraorbital foramen

Question 45

keystone bones of the face; form the upper jaw and parts of the hard palate, orbits, and nasal cavity walls

Answer 45

maxilla

Question 46

forms the cheeks and part of the orbits

Answer 46

zygomatic bone

Question 47

from the bridge of the nose

Answer 47

nasal bone

Question 48

form part of the medial orbit walls

Answer 48

lacrimal bone

Question 49

form posterior part of the hard palate and a small part of nasal cavity and orbit walls

Answer 49

palatine bone

Question 50

inferior part of the nasal septum

Answer 50

vomer

Question 51

form part of the lateral walls of the nasal cavity

Answer 51

inferior nasal concha

Question 52

houses the lacrimal sac, which helps to drain tears into the nasal cavity

Answer 52

lacrimal fossa

Question 53

medial fusion point of the horizontal plates of the palatine bones, which form the posterior part of the hard palate

Answer 53

median palatine suture