U2.L1-2 Test Neurons & Neurotransmitters

Parts of the Neuron, Neurotransmitters, Over & Under Supply of each Neurotransmitter

Dendrites

receive signals from other neuron cells

Cell Body

contains the cell nucleus

Nucleus

contains the genetic material of the neuron cell

Axon

conducts electrical impulses along the neuron cell

Myelin sheath

insulates the axon to help protect the neuron cell and speed up transmission of electrical impulses

Axon terminal

transmits electrical and chemical signals to other neuron cells and effector cells.

Dopamine

the motivator- regulates motivation, pleasure, and motor control; linked to the reward system

Serotonin

the mood stabiilizer- helps regulates mood, hunger, sleep arousal

Norepinephrine

the alert one- increases alertness and arousal; prepares body for action under stress

GABA

the calmer- calms neural activity; regulates anxiety and motor control

Acetylcholine

the connector- enables learning and memory; triggers muscle contractions

Glutamate

the exciter- memory and learning

Endorphins

the pain killer- relieves pain and boots pleasure; "runners high"

Dopamine

over supply: skitsafrienia under supply:parkiskins

Serotonin

over supply: anxiety, increases heart rate, increase blood pressure under supply, stress: depression, lack of energy, trouble concentrating

Norepinephrine

over supply: anxiety, increases heart rate, increase blood pressure under supply, stress: depression, lack of energy, trouble concentrating

GABA

under supply: depression symptoms over supply: sleep disorders

Acetylcholine

over supply: muscle spasim under supply: alzheimer's disease

Glutamate

over supply: mirgrains and seizers under supply: consentration, sleep, fatigue

Endorphins

over supply: inadequate to pain response under supply: addiction to pain killers