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Ch 1 physic 251

TermDefinition
Neuron Connection between cells in the brain
Astrocytes
Oligodendrocytes
Schwann
Microglia
Resting and action potential
Diffusion
K+ Kept inside of cell because the outside is +
CL- Kept outside of cell because the inside is -
Na+ Wants to get inside of cell
Sodium-potassium pump Keeps Na+ out of cell, takes energy
Mnemonic
Directional terms
Forebrain structures Telencephalon(cortex limbic) Diencephalon(thalamus, hypothalamus, pituitary)
Midbrain structures Mesencephalon (tectum & tegmenjtum). Myelincephalon (medulla)
Hindbrain structures metencephalon (cerebellum and pons) Myelincephalon (medulla)
LGN Vision
MGN Hearing
Drug definition Not needed for body to function, changes cell functioning
Transporter molecules
Antagonist slows/stops ion channels from opening
Agonist helps/boosts ion channels to open
Reuptake drugs mess with this to create agonist or antagonist effect
ACh muscular movement. Inside CNS, plays a role in REM sleep, learning, and memory
Nicotinic inotropic-fast
Muscarinic metabotropic- slower/long lasting, found mostly in brain
Glutamate/GABA amino acids that act as neurotransmitters
Rods luminance changes only/night vision
Cones day vision/ color vision
Fovea Find all cones. Good for seeing color and fine detail
optic chasm pathway from the eye to the brain
Hue/color wavelength
Brightness intensity
Saturation purity
Retinal disparity how brain uses its 2 eyes to give us 3D vision
Tonotropic organization piano keyboard, from high to low
Place coding all about what part of basilar membrane is vibrating. Works for higher frequencies
Rate coding about how many times the hair cells fire. Works for lower frequencies
Flex extend limbs
contract relax muscles
Gamma motor system modifies force of signals sent from the brain to the muscles. Lets spinal cord do more than the brain
Nociception ability to feel pain
Created by: jlawsep3
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