Cranium Bones Flashcards
Forms the forehead
Frontal
Where sound enters and leads to the eardrum
External meatus
What suture connects the two parietal bones
Sagittal
What suture connects the frontal and parietal bone
Coronal
Protects the brain
Parietal
Connects the occipital and parietal
Lambdoid
Protects the eyes and brain
Frontal
Protects the brain and ears
Temporal
Attachment side of neck muscles and ligaments
Styloid process
Connects parietal and temporal
Squamous
Forms the superior and lateral walls of cranium
Parietal
Sharp needle like projection
Styloid process
Butterfly shaped and spans width of skull
Sphenoid
Provides protection to ear and eye
Zygomatic process
Ear gets infected and can spread to brain
Mastaiditis
Forms a snug enclosure for the pituitary gland
Sella Turcia
Forms roof of the nasal cavity
Ethmoid bone
Forms base and back walls of skull
Occipital
Protects the brain
Occipital
Full of air cavities- sinuses
Mastoid process
Allows spinal cord to connect with the brain
Foramen magnum
Large hole
Foramen magnum
Rest on the first vertebrae of the spinal column
Occipital Condyles
Helps with movement and rotation of head
Occipital condyles
Joins with check bone
Zygomatic process
Medial part of the sphenoid bone
Sells Turcia
Attachment site for muscles of neck
Mastoid process
Forms part of the floor of the cranial cavity
Sphenoid
Allows fibers of cranial nerve V to pass to the chewing muscles of the lower jaw
Foramen Ovale
Large Oval opening of sphenoid bone
Formen Ovale
Very irregular shape
Ethmoid
Sinuses are associated with it
Ethmoid bone
Superior surface of the ethmoid
Crusts Galli
Outermost covering of the brain attaches to this projection
Crista Galli
Many small holes around it and on both sides
Crista Galli
Allows nerve fibers carrying impulses from the olfactory receptors of the nose to reach the brain
Cribiform plates
Small depression in sphenoid bone
Sella Turcia
