cramming for Quiz

Central Nervous system location

Consists of the brain and spinal cord and is where all info and signals go.

what does the CNS Do

Process, interpret, integrates, and responds.

Peripheral nervous system

What brings information and signals to the central nervous system and takes them out

Afferent/sensory division

Brings information from the outside to the central nervous system

Sensory division

Sends info to the CNS trough sensory neurons

Motor/efferent division

Takes information from the CNS to target cells through efferent neurons

Somatic nervous system

Controls voluntary movement

Efferent neurons

Take information from the CNS to the target cells

Autonomic nervous systems

Controls involuntary responses

Sympathetic division

fight or flight response. Speeds up HR

Parasympathetic Division

Rest and digest, slows down HR

Neuron

Basic unit of the nervous system

The neuron__

Sends and receives information

Neurons uses____

Electrical signals inside and chemical signals across synapses

Dendrites

Cells body(soma) also processes info

Axon

Sends signals away

Axon terminals

Send messages

Synapse

Gaps between neurons

Gray matter

Cell bodes and dendrites, it processes and thinking. Located in the brain cortex; inner spinal cord

White matter

Myelinated axons, has fast communication. Located in the brain interior, the outer spinal cord.

Sensory PNS

Carries info to CNS

Motor CNS—PNS

Carries commands to muscles

Interneurons (CNS ONLY)

Connects process and reflexes.