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Brain

Brain Biology

TermDefinition
Diencephalon Epithalamus -Pineal Gland: Melatonin Thalamus: Relay for conscious sensation Hypothalamus: Regulate pituitary/homeostasis
White/Grey matter White: Myelinated axons Grey: Cell bodies, dendrites, unmyelinated axons
Medulla Hind Brain Breathing, Barfing, Blood pressure
Pons Hind Brain Balance
Cerebellum Hind Brain Movement refinement and coordination
Frontal Lobe Complex decision making/Planning Movement
Parietal Lobe Touch, Pain,
Temporal Lobe Hearing, Smell, Emotion, ST Memory
Occipital Lobe Vision
Rods Light receptor for low light Black and white not found in fovea Depolarized with no light
Cones Color receptor, Different lengths for different colors -Blue, green, red Clustered in fovea Depolarized with no light
Bipolar cells synapse to rods and cones - Inhibited by the photoreceptors
Middle ear MIS sounds - bones Malleus Ossicles Stapes - Connected to oval window Eustachian Tube - connects to throat
Inner ear Semicircular canals - balance Cochlea - hearing, filled with lymph fluid
Cochlea Pressure waves in perilymph/endolymph vibrate basilar membrane Hair cells within membrane drag along tectorial membrane and release neurotransmitter to auditory nerve
Vestibular complex Semicircular canals - balance while moving Vestibule - 3D orientation -Saccule filled with CaCO3 crystals that fall with gravity
Created by: mnmoon
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