Psychology Brains and behavior test

The speed of a neuron’s action potential is determined by

Whether the axon is myelinated

Sympathetic nervous system

Activates automatic system

Parasympathetic

Restores homeostasis

Endorphin

Released during exercise or excitement producing well being and reducing pain

Afferent neurons

Responsible for carrying information from the outside world to the brain

Activation in the parasympathetic system results in

A decrease heat rate

Broca’s area

speech function

plasticity

The brain ability to adapt after it’s been damage

Myelin sheath

Is a conductor to speed up the electrical impulse as it tracked down the axon

Hippocampus

Memory

Serving the corpus callosum can result in

Epilepsy

EEG Electroencephalogram

Measures electric activity in neurons

MEG

Records magnetic fields from brains natural electrical currents

PET

Glucose in the brain

MRI

Maps out the brain structure

fMRI

Measures blood flow to brain regions

Wernicke’s area

Understanding speech or language

Occipital lobe

Vision

Left hemisphere

Responsible for language

Right hemisphere

Spatial ability

Medula

Heartbeat and breathing

Reticular formation

Muscle reflexes and coordination of autonomic functions

Acetylcholine

Learning

Adrenaline

Fight or flight

GABA

Calms down the nerves

Noradrenaline

Concentration and affects attention and responding action

Dopamine

Pleasure

Glutamate

Memory

Serotonin

Mood

cerebral cortex

Decision making and process information

Thalamus

Relays message between the brain

Amygdala

Emotion

Dendrite

Responsible or receiving signals from other neurons

Hypothalmus

Controls maintenance functions like eating and helps out the endocrine system

Cerebellum

Controls voluntary movement and balance also supports memory

Pons

Helps coordinate movement

Spinal cord

Controls reflexes and sends info to and from the brain

Parietal lobe

Body senses

Temporal lobe

Auditory

Central nervous system

Brain and Spinal cord

Peripheral nervous system

Carries information to and from the brain