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Neuroanatomy Terms 2

Internal capsule Axons from cortex form a compact bundle here. Lateral to diencephalon
Internal carotid a. splits into the ant. CA, Middle CA, Anterior Choroidal Ar. Poster Comm Art
Interventricular foramen Formen between lateral ventricles and 3rd ventricle
Lateral column White matter between the dorsal and ventral horn-"axons from cortex to form synapses w/ motor neurons on ventral horn"
Lateral fissure Fissue between Frontal and Temporal Lobes- Insula is deep in this fissue
Lateral ventricles Hold CSF, large ventricles
Lower motor neurons Post-Synaptic neurons
Mammillary bodies Part of the caudal hypothalamus
Medial lemniscus Ribbon of axons carrying sensory from Gracile/Cuneate Nucleus to Thalamus
Medulla Part of the brainstem. Most inferior or Caudal portion.
Medullary pyramids Base of caudal medulla - corticospinal tract runs here
Midbrain Contains Cerebral Peduncle, Substantia Nigra, Red nucleus
Middle cerebral a. Runs from carotid artery to the lateral edge of cortex-frontal, parietal, supr. temp
Middle frontal lobe Middle of the 3 sections of frontal lobe
Middle temporal gyrus Middle of the 3 parts of temporal lobe- contains wernicke on L side, understanding language
Occipital lobe Most posterior lobe of the cortex. Vision
Olfactory bulb Swelling at the end of the olfactory tract. Holds the olfactory nerve running into cribiform plate
Vertebral/ basilar a. Vertebral arteries come off R&L subclavian, comes together to become Basilar Artery. Posterior circulation uses Basilar Artery.
Olfactory tracts Part of the brain, runs along inferior surface of frontal lobe near midline
Optic chiasm Crossing of some of the axons in CNII (peripheral vision)
Parahippocampal gyrus Inferior surface of temporal lobe- conceals hippocampus
Parietal lobe Sensory information. Located posterior to frontal lobe.
Parieto-occipital sulcus Sulcus that separates the parietal lobe and occipital lobe
Pineal gland Attached to the thalamus by the epithalamus.Superior to superior colliculis
Pituitary gland (infundibulum) Normally attached to hypothalamus via infundibulum
Pons Brainstem structure. Trigeminal nerve comes off here.
Postcentral gyrus Posterior to central sulcus. Somatic sensory lies here.
Posterior cerebral art Fed by the basilar artery. Sits on superior pons. Feeds occipital lobe, inferior temporal lobe
Posterior communicating art Connects middle cerebral art, and posterior cerebral art in the circle of willis
Posterior inferior cerebellar artery Most posterior and inferior artery. Comes off of the vertebral artery, feeds inferior cerebellum??
Posterior spinal artery Dorsal horn/columns of spinal cord- penetrate posterior 1/3 of spinal cord.
Precentral gyrus Anterior to the central gyrus. This area is the primary motor cortex
Primary (first-order) sensory neurons Presynaptic neurons coming from the periphery to the spinal cord.
Putamen Basal Ganglia. Lateral to Caudate
Spinal cord Information travels to and from the brain by this pathway.
Striatum Caudate Nucleus and Putamen. Very close anatomically. Just called Striatum for ease.
Superior cerebellar a. Comes off the basilar artery, feeds the superior cerebellum
Superior colliculi Dorsal surface of the midbrain- concerned with oculomotor fx and postural adjustmts
Superior temporal gyrus Most superior of the 3 temporal gyri. Just inferior to Lateral Fissue. Involved in Audition.
Temporal lobe Lateral lobes of the cerebral cortex
Thalamus Largest part of the diencephalon. Relays info going into the cortex from other parts of the brain. Motor involvement.
Third ventricle Contains CSF. In the diencephalon. Surrounds the thalamus I think.
Upper motor neurons Presynaptic motor neurons
Ventral column Medial white matter column on the ventral side of the spinal cord. Bundles of fibers, probably motor fibers (I couldn't verify..)
Ventral horn Contains cell bodies of motor neurons that send their axons out via ventral roots
Ventral root Motor neurons leaving the spinal cord.
Created by: alison.simpson