The Nervous Test

Three layers of protective tissue in the brain and spinal cord (Dura matter, arachnoid matter, and pis matter) in the brain and spinal cord

Responsible for involuntary actions such as breathing and heart rate Also sends information from PNS to the brain

Fluid found in the meninges that cushions the brain and spinal cord. Blood vessels provides nourishment and removes waste from the spinal cord

Loss of muscle function for one or more muscles. Mostly due to injury to nervous system

Interneurons Consists of the spinal cord and brain

Two divisions sensory and motor

Motor neurons Somatic devoid system Autonomic nervous system Reflex

Motor neurons in this division carry out voluntary movements

Motor neurons in this division carry out involuntary actions

An unconscious response to a stimulus such as pupil dilation, knee-jerk, ect.

What causes the nervous system to respond

What receives the stimulus

What responds to the stimulus (always a muscle or gland)

Takes signals to cell body

Houses the nucleus and other organelles

Takes signals/impulses away from cell body

Space between neurons

Substance that covers the axon; speeds up impulse and protects axon

Picks up internal or external stimuli and coverts it to a nerve

Brain/spinal cord. Takes impulse and interprets it, decided if further action should be taken, then sends a message

Sends impulse to a muscle or gland, the muscle contracts or releases a hormone

Cell body

Axon

Responsible for thought, feelings, learning, ect.