Is Our Identity Of The Heart?

1382 Words Sep 9th, 2015 6 Pages
Psych Chapter Dos

Is our identity in the heart?
In the brain?
In the whole body?

Biological Psychologists explore the associations between body, mind, and behavior.

Cell Body- The cell’s life- support center
Dendrites- Receive messages from other cells
Axon- passes messages away from the cell body to other neurons, muscles, or glands
Neutral Impulse- (actin potential) electrical signal traveling down the axon
Myelin Sheath- covers the axon of some neurons and helps speed neutral impulses
Terminal Branches of axon- From junctions with other cells

There are billions of neurons throughout the body. Body’s communication system.

Glial Cells
Glial Cells- outnumber neurons 9 to 1
They provide nutrients to neurons/ protect

Action Potential: a neural impulse that travels down an axon like a wave
“The Wave” (sports stadium)

When does the cell send the action potential? When it reaches a threshold.
How neurons communicate (with each other).
The threshold is reached when excitatory(Fire!) signals outweigh the inhibitory (Don’t Fire!) signals by a certain amount.

The Synapse- The synapse is a junction between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron.
The synapse is also known is also known as a “synapse junction” or “synaptic gap”

Neurotransmitters
Neurotransmitters are chemicals used to send a signal across the synaptic gap

Reuptake
Reuptake: After the neurotransmitters stimulate the receptors on the receiving neuron, the…
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