Term
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Definition
| telencephalon (cerebral cortex) and diencephalon |
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Term
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Definition
cerebral cortex (6 layers of cell bodies on outside of brain)
-initiates voluntary movement, interprets sensory input, mediates complex cognitive functions (learning, speaking, problem solving) |
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Term
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Definition
| subcortical brain regions: basal ganglia (movement) and limbic system (memory/learning, emotion and motivation) |
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Term
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Definition
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Term
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Definition
tectum -roof over brain stem (orientation to sights/sounds-colliculi)
tegmentum-inputs of basal ganglia and limbic system (movement, nuclei for monoamine transmitters-d, nE, s) |
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Term
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Definition
| metencephalon and mylencephalon |
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Term
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Definition
| pons (sleep/arousal-reticular formation) and cerebellum (motor coordination/balance) |
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Term
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Definition
| medulla (brain stem-heart and respiratory function) |
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Term
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Definition
hydrocephalus (water on the brain)
swelling pinches off blood vessels-neurons die |
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Term
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Definition
membranes (like orange peel) that line outside of brain
infection-meningitis (pressure on brain and spinal cord) |
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Term
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Definition
blood brain barrier
dense layer of blood vessels and cells at base of brain (filter blood)
-large molecules need transporter protein
-fatty/gaseous molecules pass easily (nicotine/heroine) |
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Term
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Definition
| detects toxins in areas of brain not protected by BBB and induces vomiting |
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Term
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Definition
| enter through back DORSAL ROOT and make contact with cell bodies in DORSAL HORN |
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Term
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Definition
| make contact with cell bodies in VENTRAL HORN and exit at front through VENTRAL ROOT |
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Term
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Definition
| cranial nerve which controls organs (calms heart, lungs and stomach) |
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Term
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Definition
muscles/skin
acetylcholine moves skeletal muscles by activating nicotinic receptors on muscles (curare-indian arrow poison, blocks nACh receptors-paralysis)
glutamate conveys sensory info |
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Term
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Definition
smooth muscles (organs)
sympathetic and parasympathetic nervous system |
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Term
| sympathetic nervous system |
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Definition
ACTIVATION of body (fight/flight)
spending of energy
(+)pupil diameter, heart rate, blood pressure, adrenal activity, goose bumps, ejaculation
(-)digestion, salivation, tearing, bladder control
cell bodies in middle of spinal cord |
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Term
| sympathetic nervous system NT |
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Definition
terminals in sympathetic ganglia
2 NT system:
spinal cord>ganglia(Ach) and ganglia>organ(norepinephrine) to adrenergic receptors |
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Term
| parasympathetic nervous system |
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Definition
RELAXATION of the body
conservation of energy
(+) digestion, salivation, tearing, bladder control, erection
(-)pupil diameter, heart rate, blood pressure, adrenal activity
cell bodies at top and bottom of spinal cord |
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Term
| parasympathetic nervous system NT |
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Definition
terminals on/near the organ they control
1 NT system
spinal cord>ganglia(ACh) and ganglia>organ(Ach) to muscarinic Ach receptors |
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