Bio of the Body

2. maintains the health of the neuron
4. potential neuron polarized; is recharged waiting for heat, change, light
6. role: inhibition of brain activity; disorders: seizures, tremors, insomnia, anxiety disorders (low)
7. sheath that covers the axon of some neurons to help speed neural impulses
10. nervous system that controls the body's skeletal muscles, controls all VOLUNTARY movement
11. roles: movement, thought processes, pleasure and rewarding sensations; disorders: Parkinson's (low levels), Schizophrenia (excessive levels), drug addiction
13. drug molecules that are similar enough to the neurotransmitter to mimic its effects ex: opiate drugs bc enough like endorphins
14. carries info away from cell body to muscles, glands, cells
15. electrical messages that can cross synapse
17. the synaptic gap/cleft; the junction between the axon tip of a sending neuron and the dendrite or the cell body of the receiving body
18. a nerve cell, basic building block of the nervous system, basic unit of communication
19. roles: phys. arousal, learning, memory; disorder: depression (low levels)
20. roles: learning, memory, muscle coordination; disorder: Alzheimer's

1. nervous system that arouses the body, mobilizing its energy in stressful situations
2. roles: emotional states or moods, sleep, hunger, arousal; disorder: depression
3. nervous system that calms the body, conserving energy
5. type of CNS neurons that internally communicate and intervene between the sensory inputs and motor outputs
8. role: memory; disorders: migraine, seizures (both excess levels)
9. when a receiving neuron does not accept a neurotransmitter, the sending neuron absorbs it
10. the minimum level of stimulation needed to activate the next neuron
12. nervous system that controls the glands and muscles; INVOLUNTARY
16. type of neurons that carry incoming information from the sense receptors to the CNS