Skull Osteology

Question 1

Whats the difference between a skull and a cranium

Answer 1

skull includes mandible, cranium doesn’t

Question 2

What are the functions of the skull

Answer 2

– Protect Brain
– Upper part of alimentary and respiratory system
– Protective capsule for organs of sight, hearing and smell
– Close relationship with teeth and oral soft tissues

Question 3

How many bones is the skull made up of

Answer 3

23

Question 4

What is the neuro and viscerocranium

Answer 4

Neurocranium - bones of the vault and base

Viscerocranium - bones of the face

Question 5

Going anti-clockwise starting at the bone that makes up the forehead names the bones of the neurocranium

Answer 5

Frontal
Parietal
Occipital
Temporal
Sphenoid
Zygomatic
(ethmoid??)

Question 6

Name the parts of the mandible and point out the maxilla

Answer 6

Mandibular condyle
Coronoid process
Mandibular ramus
Mandibular angle

Question 7

Point out the sutures of the cranium

Answer 7

Coronal, Squamous, sagittal, occipitomastoid and Lambdoid

Question 8

Point out the sinuses in the skull

Answer 8

Frontal
Ethmoid
Maxillary
Sphenoid

Question 9

Point out the different foramen in the skull

Answer 9

Supraorbital
Infraorbital
Mental

Question 10

Last bits i think is point out the cooking ethmoid, lacrimal, vomer, palatine and glabella

Answer 10

OK DADDIO

Question 11

Whatre the holes in the orbit called

Answer 11

Small hole - optic canal

Larger hole - superior orbital fissure

Question 12

Name the different processes and regions of the temporal bone

Answer 12

Squamous region
external acoustic meatus (EAM)
Mastoid region
Mastoid process
Styloid process
tympanic region
mandibular fossa and zygomatic process

Question 13

What is the weakest part of the skull

Answer 13

The pterion

Question 14

Point out the anterior, middle and posterior cranial fossa

Answer 14

STOP TICKLING ME BASTRAD BITCH

Question 15

What is the ethmoid bone made out of and point them out

Answer 15

cribriform plate and crista galli

there’s also the olfactory foramina in there

Question 16

Name the two holes in the temporal bone

Answer 16

anterior one is the internal acoustic meatus and posterior one is the jugular foramen

Question 17

Name the 3 holes in the sphenoid bone

Answer 17

anterior = foramen rotundum
medial = foramen ovale
posterior = foramen spinosum

Question 18

Describe the position of the frontal sinus and where is drains to

Answer 18

– Lies in frontal bone, deep to superciliary arch

– Drain to anterior part of middle meatus

Question 19

Describe the position of the maxillary sinus and where is drains to

Answer 19

– Largest paired sinus, lie in the body of maxilla;

– Opening into middle nasal meatus

Question 20

Describe the position of the ethmoidal sinus (cellules) and where is drains to

Answer 20

Lie in ethmoidal bone, contains large number of air cells, divided into anterior, middle and posterior groups
– Anterior and middle groups drain into middle nasal meatus, while posterior group drains into superior nasal meatus

Question 21

Describe the position of the sphenoid sinus and where is drains to

Answer 21

– Lies in body of sphenoid bone

– Drain into sphenoethmoidal recess

Question 22

Does the infant skull have more or less bones than the adult one

Answer 22

more

Question 23

what is different about the mandible and frontal bones in infants

Answer 23

they’re not fused

Question 24

What are fontanelles and name them

Answer 24

these are unossified remnants of fibrous membranes between fetal skull bones

Anterior, posterior, mastoid and sphenoid