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NRSC 2100, Intro to Neuroanatomy

by: Brighid Bardsley

NRSC 2100, Intro to Neuroanatomy 2100

Marketplace > University of Colorado > Neuroscience > 2100 > NRSC 2100 Intro to Neuroanatomy
Brighid Bardsley

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About this Document

directional terms and basic break downs
Introduction to Neuroscience
Watkins, Linda
Class Notes
25 ?




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This 2 page Class Notes was uploaded by Brighid Bardsley on Saturday February 20, 2016. The Class Notes belongs to 2100 at University of Colorado taught by Watkins, Linda in Spring 2016. Since its upload, it has received 19 views. For similar materials see Introduction to Neuroscience in Neuroscience at University of Colorado.


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Date Created: 02/20/16
Neuroanatomy  Neuroaxis: The imaginary line that divides the nervous system into 2 symmetrical halves  Midline: The medial line (or plane)  Directional/ Relative Terms  Rostral: Originally means “beak”; describes the front  Caudal: Originally means “tail” ; describes the back  e.g. a dog’s hind leg is caudal to his ears, and his ears are rostral to his tail  Anterior: another way to describe front  Posterior: another way to describe back  Superior: above  Inferior: below  e.g. your head is superior to your feet  Dorsal: means back, e.g. a shark’s dorsal fin  Ventral: belly  Medial: towards the midline  Lateral: to the side (of the midline)  Lateral in Depth  Ipsilateral: same side; your right hand is ipsilateral with your right foot  Contralateral: opposite side; your right hand is contralateral with your left foot  contralateral further separates into:  Decussation: “in the form of the letter ‘x’ “e.g. the optic chiasm  Commissure: “to send over” e.g. the corpus callosum  Bilateral: two sides, your hands are bilateral    Neuroanatomy Terminology  Neurons:  Nucleus: pl. nuclei, a group of neurons in the central nervous system  Ganglion: pl. ganglia, group of neurons in the peripheral nervous system  (Greek root: swelling/ tumor)  EXCEPTION: the basal root ganglia are in the central nervous system  Axons:  Tract: group of axons traveling together in the central nervous system  Nerve: group of axons traveling together in the peripheral nervous system  Neural projections:  ­describes the route (where axons go) that one area (group of neurons) takes to “talk to”  another area ( another group of neurons)  Neural Projection Nomenclature:  c + a + b  e.g. Lateral spinothalamic tract  a= origin  b=destination  c= relational term      The Central Nervous System  Meninges: membranes; includes  the Dura and Pia Mater  Dura Mater: “the tough mother”  resides right beneath the skull  Arachnoid: “resembling a cobweb”  space that rests between the Dura  and Pia Maters.   Pia Mater: “the tender mother”  resides beneath the arachnoid;  against the cerebral cortex  Meningitis: inflamed meninges                                         Cerebrospinal Fluid  ­made by the choroid plexus from blood plasma  ­ clear, colorless, contains lots of salts  ­ involved in cleaning the brain and eliminating waste; while you sleep the CSF cleans your  brain  ­ 1 in 500 babies are born with H ​ydrocephalus,  a presence of too much CSF. Can be fixed by  draining the cerebrospinal fluid  Concussions  mild traumatic brain injury, brain hits the skull, sends shockwaves through the brain, causes  axonal shearing 


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