Head & Neck Flashcards
weakest part of the skull and underlying vessel?
pterion
middle meningeal artery
what makes up the third level of the scalp and what does it connect?
epicranial aponeurosis
occipitofrontalis muscle
nerve supply to the anterior & posterior of the scalp?
anterior - trigeminal nerve (all branches)
posterior - spinal C2 & C3
what are emissory veins?
valveless veins that traverse diploe
may take infection intracranially
where does sympathetic innervation of the parotid gland originate?
otic ganglion
where does the facial artery end?
medial commisure of the eye
what is special about the hyoid bone?
it is the only bone that does not articulate with another bone and also easily damaged
what splits the nasal septum?
vomer
perpendicular plate of the ethmoid bone
what is the nasal septum cartilage?
quadrangular cartilage
hyaline cartilage
what is the roof of the nasal cavity lined by?
olfactory mucosa
what type of joint is the TMJ?
synovial modified-hinge
bony attachments of the temporalis? (2)
maxillary process
zygomatic bone
action of lateral and medial pterygoid?
lateral - depression of the mandible
medial - elevation of the mandible
ligaments that prevent over abduction/adduction of the eye?
medial and lateral check ligaments
what dampens loud sounds in the ear?
tensor tympani
what fluid lies in the ear bony labyrinth? membranous labyrinth?
perilymph
endolymph
when do the anterior and posterior fontanelles fuse in children?
anterior - 18m-2yrs
posterior - first several months
