Occipital bone Flashcards
what is the foramen magnum
The large hole where the inferior part of the brain connects to the the spinal column
what is the posterior cranial fossa
the main lower body of the occipital bone
what does the posterior carinal fossa do
supports the cerebellum of the brain
where is the posterior cranial fossa
lower interior of the scull near foramen magnum (big hole in head where neck is)
What does the Foramen magnum do
lets the brain go through the occipital bone to get to the spinal column
where is the foramen magnum
the base of the occipital bone
Where is the Occipital condyle
to the anterior left and right of the foramen magnum
what does the occipital condyle do
articulates with the top vertebra to be-able to to look up and down
Where is the hypoglosal canal
In the upper interior of the occipital bone where the occipital condyle would be (to the anterior left and right of the foramen magnum )
what does the hypoglossal canal do
lets a hypogossal nerve (XII) through
Where is the external occipital petumbrence
Back external view farthest posterior ridge
Where is the superior and inferior nucal lines
The lines on the posterior external view
what is the superior and inferior nucal lines
Markings on the external posterior portion of the occipital bone
where is the external occipital crest
posterior to the foramen magnum. at the beginning of the branching markings.
What does the external occipital crest do
secures the ligamentum nuclea (back of neck ligament ) a ligament that connects the vertebra to the scull
