AP Psych VOCAB Retest

The part of the peripheral nervous system that prepares the body for action in stressful situations, also known as the "fight or flight" response, is called the

Sympathetic Nervous System

The minimum level of stimulation required to trigger an action potential is called the

Threshold

The brief electrical charge that travels down the axon of a neuron is called the

Action Potential

This long, tube-like structure of a neuron transmits electrical signals from the cell body to the terminal branches, called the

Axon

This neurotransmitter is associated with pleasure, reward, and motor control, and low levels are linked to Parkinson's disease, called

Dopamine

This neurotransmitter inhibits neuronal activity, helping to calm the brain and reduce stress, called

GABA

The system that consists of the brain and spinal cord and controls most bodily functions is called the

Central Nervous System

The part of the brain that controls vital autonomic functions such as breathing and heart rate, called the

Medulla

The system that consists of all the nerves outside the central nervous system and connects the CNS to the rest of the body is called the

Peripheral Nervous System

The brain's oldest and innermost region, responsible for life-sustaining functions like heartbeat and breathing, is called the

Brain Stem

The neurotransmitter that is involved in muscle contraction and memory formation and is found at neuromuscular junctions, called

Acetylcholine (ACh)

This structure in the brainstem controls vital autonomic functions such as breathing and heart rate, called the

Medulla

The nerve network that controls arousal and filters incoming stimuli is called the

Reticular Formation

The two halves of the brain that control specialized functions like thinking, perceiving, and speaking are the

Cerebral Hemisphere

This neurotransmitter is involved in arousal and alertness, and low levels are linked to depression and anxiety, called

Norepinephrine

The two hemispheres of the brain are covered by the thin surface layer of interconnected neural cells called the

Cerebral Cortex