AP PSYCHOLOGY: Brain and Body Test

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46 Terms
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Axon

electrical impulses travel away

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soma

maintain cell and keep neuron functioning effectively

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dendrites

receive communication from other cells

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synaptic gap

space between axon of one neuron and dendrites of another, electrical signal is translated to chemical signal that can be perceived by next nueron

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myelin sheath

allows electrical impulses to transmit quickly

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action potential

occurs when a neuron transmits an electrical charge down tits axon, which releases chemical signals in the form of neurotransmitters

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All or Nothing Law

firing of a neuron (like a gun)

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Dopamine

controls voluntary movements, attention, and emotions

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too little dopamine

Parkinson's Disease

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too much dopamine

Schizophrenia

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Serotonin

regulates sleep, mood, and hunger

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too little serotonin

depression

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Acetylcholine

enables muscle action, memory, learning

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disorders associated with acetylcholine

Alzheimer's Disease

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Endorphins

reduction of pain, released during exercise, skin to skin touch, eating, and while laughing

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disorder associated with endorphins

OCD

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Norepinephrine

alertness, arousal

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disorders associated with norepinphrine

depressive and eating disorders

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agonist vs antagonist

agonists mimic a neurotransmitter antagonist blocks the normal activity of a neurotransmitter

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nervous system

the sensory and control apparatus consisting of a network of nerve cells (control system)

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central nervous system

brain and spinal cord

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peripheral nervous system

the section of the nervous system lying outside the brain and spinal cord

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parasympathetic vs sympathetic

parasympathetic: network of nerves that relaxes your body after periods of stress or danger. sympathetic: responds to dangerous or stressful situations (Fight or flight).

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left brain

controls right side ( Logic, Analysis, Language, Words of songs)

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right brain

controls left side (Creativity, Imagination, Arts (motor skill), Tune of songs)

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EEG

detect electrical activity

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MRI

magnetic fields to create a more detailed image

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PET scan

shows brain activity/function

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CAT scan

3D image of the brain structure

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fMRI

shows structure, activity, and function

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medulla

involuntary actions (breathing, heartbeat)

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cerebellum

fine motor skills

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pons

sleep cycle, facial expressions

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amygdala

emotions

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hippocampus

memories

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thalamus

sensory relay center (every sensation goes through)

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hypothalamus

hunger, rage, thirst, sexual desire

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cerebral cortex/cerebrum

higher level thought

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occipital lobe

Visual signals are sent to this lobe, Makes sense of what we see in the world

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parietal lobe

Area of brain where some of our senses are registered, Touch is the most dominant

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frontal lobe

Area of the brain responsible for motor skills, responsible for the movement of the muscles in the body

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temporal lobe

Hearing is registered here, Some speech functions are present here

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corpus callosum

fibers that connect and allow the left and right hemispheres

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wernike's vs broca's area

broca: ensure language is fluent wernike: language makes sense

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pituitary gland

master gland, controls release of hormones

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endocrine system

system of glands that secretes hormones that help control bodily function

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