Questions and Answers | 2026 Updates |
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Central Nervous System - ANSWER- -Brain and Spinal Cord
Peripheral Nervous System - ANSWER- -Nerves that connect the brain to the rest of the body.
Subdivisions of Peripheral Nervous System - ANSWER- -Autonomic: involuntary actions
Somatic: voluntary actions
Subdivisions of Autonomic - ANSWER- -Sympathetic: Internal organs during times of stress
(fight of flight response)
Parasympathetic: reverses effects of sympathetic NS and brings body back to normal
Neurons - ANSWER- -Specialized cells that conduct impulses through the nervous system
Axon - ANSWER- -Part of a neuron that SENDS a neurotransmitter
Cell Body - ANSWER- -Part of a neuron that houses axons, dendrites, and neurotransmitters
Dendrites - ANSWER- -Receive messages/neurotransmitters
Resting Potential - ANSWER- -Negative charge on inside, positive charge on neuron outside.
Cell has the potential to quickly transmit a message, but is in a resting state
, Permeability - ANSWER- -Allows for depolarization; mixing of positive and negative ions
Action Potential - ANSWER- -Electrical charge that initiates firing a neuron, the 'spark'
Myelin Sheath - ANSWER- -insulates axon for faster transmission. Layer of fatty white
material
Imbalances of Acetylcholine are linked to __________ - ANSWER- -Alzheimer's
Imbalances of serotonin are linked to __________ - ANSWER- -depression, anxiety, and
eating disorders
Imbalances of Dopamine are linked to _________ - ANSWER- -Schizophrenia and Parkinson's
disease
The brain stem is also known as the _________ brain - ANSWER- -Primitive brain
Medulla - ANSWER- --Part of the Brain Stem
-Controls vital automatic functions (heartbeat, breathing, blood pressure)
-Controls reflexes such as coughing and sneezing
Pons - ANSWER- -Part of the brain stem that coordinates movement and sleep
Reticular formation - ANSWER- -Part of the brain stem that controls alertness and
consciousness on a general level