HEAD AND NECK Flashcards
what is the roof of the skull called?
calvarium
what is the facial skull called?
viscerocranium
what are 2 functions of the skull?
protect brain
support facial structures
what is the infraorbital foramen?
part of maxilla where termination of the infraorbital nerve, maxillary division of the trigeminal nerve and superior alveolar nerve
what does pneumatic mean?
air within the bones eg paranasal sinus
what bones are pneumatised?
frontal
ethmoid
sphenoid
temporal
maxilla
where does the middle and inner ear sit?
petrous part of the temporal bone
what are cranial sutures?
dense fibrous joints made of collagen
what do cranial sutures allow?
bones to move over each other during child birth
where is the coronal suture?
between the frontal and parietal bones
where is the saggital suture?
between the 2 parietal bones
where is the lambdoid suture?
between parietal and occipital
what is the anterior fontanelle?
joining between cranial and sagittal suture
where is the posterior fontanelle?
joining between the sagittal and lambdoid suture
when does the anterior fontanelle close?
between 18 months and 2 years
when does the posterior fontanelle close?
sometimes closed at birth or 1 to 2 months
where is the mastoid process?
part of the temporal bone behind the ear
what does the mastoid process contain?
mastoid air cells
what does inflammation of the mastoid air cells cause?
otis media
where is the foramen magnum ?
Hole in occipital bone at base of skull
what passes through the foramen magnum?
spinal cord to attach to brain
where does the olfactory nerve enter the skull?
through cribriform plate of ethmoid bone
what enters the skull through the internal auditory medius?
vestibulocochlear nerve
facial nerve
what nerve controls balance and hearing?
vestibulocochlear