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Bio 2300 CNS

Anatomy of the brain, structures of the brain

QuestionAnswer
Define Neuron the primary functional/structural unit of the nervous sytem
Define Nucleous A collection of cell bodies in the CNS
Define Ganglion A collection of cell bodies outside the CNS
Describe the structure of gray matter Collection of NUCLEI in the CNS
Describe the structure of white matter Collection of MYELINATED AXONS in the CNS
Association tracts Connect inside a single hemisphere (neighbors associate)
Commissural tracts Connect between both hemispheres (long distance COMMunication)
Projection tracts Connect the higher brain to the brainstem
What is the Corpus Collosum Large commissural tract that connects R and L hemispheres
What are the 5 lobes of the cerebrum Frontal, parietal, occipital, temporal, brain stem
Primary functions of the frontal lobe Personality, memory, motor cortex
Primary functions of the parietal lobe Sensory cortex
Primary functions of the occipital lobe Visual cortex
Primary functions of the temporal lobe Auditory cortex
Primary functions of the brain stem Autonomic fuctions (breathing, cardiac function, thermoregulation)
What is the difference between a Gyrus and a Sulcus Gyrus = Ridges (G for Grow) Sulcus = Grooves (S for Sink)
Function of the Thalamus Receives, groups, and relays sensory input, except smell
Function of the Hypothalamus Command center for the endocrine system
Function of the Epithalamus Regulates sleep/wake cycle
What is the Basal Nuclei Paired, irregular masses of gray matter buried deep within the central white matter. Initiates movement. Parkinson's results from damage.
What is the function of the cerebellum Maintains body posture,balance, and fine coordination. Initiates movement, but does not maintain it.
Function of the Midbrain Relays visual and auditory information
Function of the Pons Connects the brain and spinal cord. "Bridge"
Function of the Medulla Controls autonomic functions such as breathing and cardiac function
Function of the Precentral Gyrus Primary motor area (located in the frontal lobe)
Function of the Post-central Gyrus Primary sensory area (located in the temporal lobe)
Function of the Upper Motor Neurom Connects the cerebral cortex to the spinal cord
FilIum Terminale is an extension of what tissue Pia matter
What is Conus Medullaris The end of the spinal cord, located around L1/L2
Location of gray matter in the BRAIN Superficial
Location of white matter in the BRAIN Deep
Location of gray matter in the SPINAL CORD Deep
Location of white matter in the SPINAL CORD Superficial
Define Upper Motor Neuron From the cerebral cortex to the SPINAL cord
Define Lower Motor Neuron From the Spinal Cord to the target muscles
What is the Cauda Equina Collection of rootlets inferior to the Conus Medullaris
What is the Conus Medullaris and where is it located Tip of the Spinal Cord around L1/L2
Created by: Tardisbluu
 

 



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