Skull

Question 1

the axial skeleton

Answer 1

80 bones
Consists of The skull,
vertebral column, thoracic cage

Question 2

The skull

Answer 2

8 Cranial bones
enclose the cranial cavity and protects the brain
cranial vault (Calvaria)
Cranial base- anterior, middle, posterior cranial fossae

Question 3

What is a suture?

Answer 3

where two bones align

Question 4

Frontal bone

Answer 4

Anterior part of the cranium
protects brain
has most anterior fossa
contains air filled frontal sinus

Question 5

Parietal bones

Answer 5

x 2
sides of the head - superior and lateral
has coronal, saggital, lambdoid, squamous sutures

Question 6

Occipital bone

Answer 6

Posterior wall and cranial fossa
connects with first bones of spine
foramen magnum - hole where the spine connects
jugular foramen- cavity where nerves pass through and where temporal and occipital bones meet.

Question 7

Temporal bones

Answer 7

x2
below and to the side (Inferolateral) aspects of the skull and parts of the cranial floor.
squamous
tympanic- around the ear
mastoid- jaw
petrous- inside head

Question 8

Sphenoid bone

Answer 8

3 processes-
Greater wings -superior orbital fissure
Lesser wings- optic canal - optic nerve passes through to eyes
Pterygoid- connects the cranium floor to other bones

Question 9

Ethmoid bone

Answer 9

Deepest skull bone
Superior part of the nasal septum, roof of nasal cavities
part of medial wall of orbits
Cribriform plate- tissue like structure allows smell to pass through

Question 10

Fontanels

Answer 10

Unossified soft regions of the skull

Carniosynostosis - premature suture formation