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Anatomy Test 1

ridge on cerebral cortex gyrus
depression/groove on cerebral cortex sulcus
occipital lobe function visual processing center
parietal lobe function somatosensory association center
thalamus function major sensory inputs from skin relay through thalamus
temporal lobe function hearing, comprehension, smell
frontal lobe function motor functions, complex cognitive functions
insula function gustation/taste
left cerebral hemisphere function language, logical processing, movement of R side of body
right cerebral hemisphere function spatial perception, movement of L side of body
central sulcus separates parietal lobe from frontal lobe
parietooccipital sulcus separates parietal lobe from occipital lobe
lateral sulcus separates temporal lobe from frontal and parietal lobes
calcarine sulcus function primary visual center
cingulate gyrus function part of limbic system; regulates emotions and pain; drives the body's conscious response to unpleasant experiences (fear)
precentral gyrus function major motor cortex (mostly skilled motor actions)
postcentral gyrus function primary somatosensory cortex
longitudinal fissure separates R and L hemispheres
corpus callosum commissural tract (side-to-side between hemispheres); allows R and L hemispheres to communicate
lentiform nucleus function assists with muscle movements
globus pallidus function maintains muscle tone; regulates voluntary movements
putamen function "auto-pilot"; regulates subconscious movements
claustrum function helps process visual data
hippocampus function part of limbic system; long-term memory
caudate nucleus function learning and memory storage; sets rhythm of arms/legs when walking; balance
amigdaloid body function motivation and emotional behavior; applies emotion to memories
lateral ventricles function stores CSF
anastomosis definition connection between 2 blood vessels
projection tracts ascending and descending
arcuate tracts connect Broca's and Wernicke's areas
commissural tracts side-to-side (ex. corpus callosum)
longitudinal fasciculi front-to-back of cerebrum
tectum function superior colliculus= visual reflexes / inferior colliculus= auditory reflexes
fornix function long-term memory
tegmentum function consciousness
reticular formation function consciousness
substantia nigra function dopamine; muscle tone
pneuotaxic and apneustic centers function govern rhythm and depth of breathing
Olfactory Nerve (I) function smell
Olfactory Nerve (I) foramen cribriform plate foramina
Optic Nerve (II) function vision
Optic Nerve (II) foramen optic canal
Oculomotor Nerve (III) function innervates extrinsic eye muscles (superior rectus, medial rectus, inferior rectus, and inferior oblique)
Oculomotor Nerve (III) foramen superior orbital fissure
Trochlear Nerve (IV) function innervates superior oblique muscle
Trochlear Nerve (IV) foramen superior orbital fissure
Trigeminal Nerve (V) function sensory to face; innervates muscles of mastication
Trigeminal Nerve (V) foramen Opthalmic Div= superior orbital fissure / Maxillary Div= foramen rotundum / Mandibular Div= foramen ovale
Abducens Nerve (VI) function abducts the eyeball (lateral rectus muscle)
Abducens Nerve (VI) foramen superior orbital fissure
Facial Nerve (VII) function innervates muscles of facial expression
Facial Nerve (VII) foramen internal acoustic meatus
Vestibulocochlear Nerve (VIII) function sensory nerve of hearing and balance
Vestibulocochlear Nerve (VIII) foramen internal acoustic meatus
Glossopharyngeal Nerve (IX) function innervates structures of tongue/pharynx
Glossopharyngeal Nerve (IX) foramen jugular foramen
Vagus Nerve (X) function parasympathetic to abdomen and thorax
Vagus Nerve (X) foramen jugular foramen
Accessory Nerve (XI) function innervates trapezius and sternocleidomastoid
Accessory Nerve (XI) foramen jugular foramen
Hypoglossal Nerve (XII) function innervates the tongue muscles
Hypoglossal Nerve (XII) foramen hypoglossal canal
Which nerve innervates the superior rectus muscle? oculomotor (III)
Which nerve innervates the superior oblique muscle? trochlear (IV)
Which nerve innervates the lateral rectus muscle? abducens (VI)
Which nerve innervates the inferior oblique muscle? oculomotor (III)
Which nerve innervates the inferior rectus muscle? oculomotor (III)
Which nerve innervates the medial rectus muscle? oculomotor (III)
Which muscle controls the eyelid? levator palpabrae superioris
Which nerve innervates the sphincter and dilator pupillae muscles? oculomotor (III)
What muscle connects to the tympanic membrane? tensor tympani
located in the semicircular canal used to detect angular movement crista ampularis
area of skin supplied by nerves originating at spinal nerve root dermatome
a group of muscles supplied by a single spinal nerve myatome