Cranium and Brain Flashcards
Bones of the cranium (6)
temporal, parietal, occipital, frontal, sphenoid, ethmoid
sutures of the cranium
coronal, sagittal, squamous, lambdoid
what makes up the pterion
squamous suture, shenoparietal suture, frontoshepnoid suture
injury to the pterion will result in what
middle meningeal artery injury, epidural hematoma
what lobe of the brain is in the anterior cranial fossa
frontal
what lobe of the brain is in the middle cranial fossa
temporal
what lobe of the brain is in the posterior cranial fossa
cerebellum
components of the forebrain
telencephalon (cerebrum, neurocortex, basal nuclei)
diencephalon
components of the hindbrain
pons, cerebellum, medulla oblongata
frontal lobe functions
somatomotor (M1), functional execution (L)
parietal lobe functions
somatosensory (S1), association/ integration (R)
temporal lobe functions
audition (A1) and memory
occipital lobe functions
vision (V1)
Limbic lobe functions
drive, emotion, and memory
insula functions
taste, smell, emotion
precentral gyrus functions
primary somatic motor coretx
postcentral gyrus functions
primary somatic sensory cortex
where is the primary visual cortex
calcarine sulcus, occipital lobe
left hemisphere functions
language center, function- executing
right hemisphere functions
spatial orientation, emotion, and prosody of language
12 cranial nerves
in order: olfactory, optic, oculomotor, trochlear, trigeminal, abducens, facial, vestibulocochlear, glossopharyngeal, vagus, spinal accessory, hypoglossal
how many nerves come off of the different components of the brain stem
midbrain-2
pons- 4
medulla oblongata- 3
what is the function of the superior colliculus
visual pathway
CN 3 (oculomotor)
what is the function of the inferior colliculus
auditory pathway
CN 4 (trochlear)- ONLY nerve that originates in the posterior side
what cranial nerves come off of the pons
mid-pons: CN 5
pontomedullary junction: med to lat
CN 6, CN 7, CN 8
what cranial nerves come off of the medulla oblongata
posterior to olive- CN 9, CN 10, CN11
between pyramid and olive- CN 12
