Lab 14- skull(test 2)

Question 1

cranial bones

Answer 1

frontal bone, parietal bones, occipital bone, temporal bones, sphenoid bone, ethmoid bone

Question 2

facial bones

Answer 2

maxilla, palatine bones, zygomatic bones, lacrimal bones, nasal bones, vomer bone, inferior nasal conchae, mandible

Question 3

frontal bone

Answer 3

supraorbital foramen (or notch): transmits blood vessels and nerves
frontal sinus: two present

Question 4

parietal bones

Answer 4

sagittal suture: where parietal bones meet

coronal suture: where parietal bones meet frontal bone

Question 5

occipital bone

Answer 5

lambdoid suture: where parietal bones meet occipital bone
external occipital protuberance: midline projection on posterior surface
foramen magnum: where brainstem and spinal cord meet
occipital condyle: articulates with first cervical vertebra

Question 6

temporal bones

Answer 6

squamous suture: where the parietal bones meet the temporal bones
external acoustic meatus: opening of outer ear
mandibular fossa: articulates with mandible
mastoid process: attachment site for muscles
styloid process: long, pointed projection
carotid canal: transmits internal carotid artery
jugular foramen: transmits internal jugular vein
internal acoustic meatus: opening for cranial nerves
zygomatic process: forms much of zygomatic arch

Question 7

sphenoid bone

Answer 7

sella turcica: saddle shaped depression for pituitary gland
greater and lesser wings: lateral extensions
sphenoid sinus- two present

Question 8

ethmoid bone

Answer 8

cribriform plate: contains many olfactory foramina for olfactory nerves
perpendicular plate: forms most of the nasal septum
superior nasal concha: small extension in nasal cavity
middle nasal concha: medium extensions in the nasal cavity
ethmoidal sinus: many present
crista galli: attachment site for some brain membranes

Question 9

maxilla

Answer 9

maxillary sinus: largest sinus
palatine process: forms anterior hard plate
alveolar process: supports the teeth
alveolar arch: forms the alveolar process

Question 10

palatine bones

Answer 10

l shapes bones

Question 11

zygomatic bones

Answer 11

temporal process: extension that joins zygomatic process
zygomatic arch: formed by zygomatic and temporal processes
Cheek bone

Question 12

lacrimal bones

Answer 12

two, thin and scalelike

Question 13

nasal bones

Answer 13

forms bridge of nose

Question 14

vomer bone

Answer 14

forms part of nasal septum

Question 15

inferior nasal concha

Answer 15

two, largest of the conchae

Question 16

mandible

Answer 16

ramus: upward projection
mandibular condyle: articulates with the temporal bones
coronoid process: attachment site for chewing muscles
alveolar process: supports the teeth
mandibular foramen: admits blood vessels and nerves for teeth
mental foramen: passageway for blood vessels and nerves
mental protuberance: chin projection