Sympathetic prepares for 'fight or flight' by increasing heart rate, while parasympathetic promotes 'rest and digest' by decreasing heart rate.

Autonomic operates unconsciously and involuntarily, while somatic is under voluntary, conscious control.

Autonomic targets internal organs and glands, while somatic targets skeletal muscles.

Sympathetic activation leads to dilated pupils, while parasympathetic activation leads to constricted pupils.

Afferent nerve fibers transmit sensory information to the CNS, while efferent nerve fibers carry motor commands from the CNS.

The CNS processes info and sends out commands. The PNS relays signals between the body and brain.

The somatic system might control running away, while the autonomic system increases heart rate and adrenaline.

The sympathetic system increases breathing rate to supply more oxygen, while the parasympathetic system decreases it during rest.

The somatic system controls voluntary skeletal muscles, while the autonomic system controls involuntary smooth and cardiac muscles.

Somatic responses are generally faster because they involve direct control of skeletal muscles, while autonomic responses can be slower due to hormonal involvement.

Processes sensory information and sends out motor commands to control movement, behavior, and internal processes. Integrates and coordinates all neural activity.

Serves as a communication relay between the central nervous system and the rest of the body. Collects sensory information and carries motor commands.

The ANS maintains homeostasis through the opposing actions of the sympathetic and parasympathetic divisions, regulating vital functions.

Controls voluntary movements of skeletal muscles and allows us to interact with the external environment through sensations.

Prepares the body for action in emergency situations by triggering the 'fight or flight' response.

Conserves energy and maintains homeostasis by promoting 'rest and digest' functions during relaxed states.

They work in opposition to maintain balance and homeostasis in the body's internal environment.

Sensory receptors in the skin and muscles provide information about the body's position and external stimuli.

The CNS stores memories, enables learning, and generates our perceptions and subjective experiences.

Both systems contain afferent (sensory) and efferent (motor) nerve fibers that transmit signals between the central nervous system and the periphery.

The brain and spinal cord; the command center of the nervous system.

All the nerves outside the CNS; the messengers relaying signals between the body and brain.

Part of the PNS that regulates involuntary, unconscious processes essential for survival.

Part of the PNS that controls voluntary movements and behaviors under conscious control.

The division of the ANS that triggers 'fight or flight' responses.

The division of the ANS responsible for 'rest and digest' functions.

Transmit sensory information from receptors in the skin, muscles, and organs to the brain and spinal cord.

Carry motor commands from the central nervous system to effectors like muscles and glands to produce responses and behaviors.

The body's physiological reaction to a perceived harmful event, attack, or threat to survival.

The parasympathetic nervous system's function to conserve energy and maintain homeostasis during relaxed states.