skull anat lecture final

Neurocranium

under brain and protects senses

Visceroncranium

Jaw and pharynx

Neurocranium

under brain and protects senses

Visceroncranium

Jaw and pharynx

Dermatocranium

Most of the remaining skull

Skull four groups

Cranium: protects the brain

face: form respiratory, digestive paths and orbis

hyoid apparatus: structural

middle ear: aid in hearing

Bones of cranium

Occipital: exoccipital, supraoccipital, basioccipital
Parietal
Frontal

Temporal
Sphenoid: basisphenoid, presphenoid.
Ethmoid
 Incus
 Stapes

Bones of face

Incisive
 Nasal
 Maxilla
 Ventral concha
 Vomer
 Zygomaticus
 Palatine
 Lacrimal
 Pterygoid
 Mandible

Bones of hyoid apparatus

Stylohyoid
 Epihyoid
 Ceratohyoid
 Thyrohyoid
 Basihyoid

Bones of middle ear

Malleus
 Incus
 Stapes

Know the regions of the skull

Know the occipital bone

Occipital bone:

Hypoglossal canal (XII gyoglossal nerve)

Tympano-occipital fissure (IX glossopharyngeal) (X vagus) (XI Accessory)

label temporal bone:

Label inner parts of temporal bone:

label:

Maxilla infraorbital canal parts:

Palatine bone parts:

Mandible parts: Medial view

Mandible parts: lateral view

What are the sphenoid bones (2)

Basisphenoid specifications:

Basisphoid cont. pay attention to alar canal

what do dogs have that cats dont have:

alar canal

identify species based on narrow space between mandible and skull

cat L Dog R

label parts of the presphenoid

what is arrow pointing to on the frontal bone

frontal sinus

Label lacrimal bone:

Know the regions

More regions to know

label :

frontal sinus parts:

Cornual diverticulum of frontal sinus

end of the bone within the horn

equine skull parts

Facial muscles related to____

Masticatory muscles related to _____

expression

eating

facial muscles blue arrows

Masticatory muscles are made to ____ the mouth

close

Think of croc. dont need too much muscle to open but needs a lot of bite force

Label skull M.: