Cranial and Facial Bones (Week 3)

Question 1

8 Cranial Bones

Answer 1

Ethmoid, frontal, occipital, parietal (2), sphenoid, temporal (2)

Question 2

Ethmoid bone

Answer 2

located at front of sphenoid bone

makes up part of nasal cavity

crista galli, cribiform plate, perpendicular plate, olfactory foramen

Question 3

Frontal bone

Answer 3

makes up forehead

supraorbital foramen underneath frontal bone, above the orbit (eye socket)

Question 4

Occipital bone

Answer 4

back of skull

foramen magnum - hole in base of skull that allows spinal cord to connect to brain

occipital condyle - 2 knobs on O bone

Question 5

Parietal bones

Answer 5

on either side of head, behind frontal bone

Question 6

Sphenoid bone

Answer 6

below frontal bone, spans width of skull and forms large part of base

Question 7

Temporal bones

Answer 7

under each parietal bone

Question 8

Parts in temporal bone

Answer 8

mandibular fossa - depression articulates with mandible

styloid process - pointed bone below ear

mastoid process - behind ear, attaches to neck muscles

external auditory meatus - tube from outer ear to middle ear

Question 9

Facial bones (14)

Answer 9

inferior nasal conchae (2)
lacrimal (2)
mandible - condylar process
maxillae (2) - infraorbital foramen, palatine process
nasal (2)
palatine (2)
vomer
zygomatic (2)