Unit 1.2

Motor neurons

Neurons that carry outgoing information from the brain and spinal cord to the muscles and glands

Reflex

A simple, automatic response to a sensory stimulus, such as the knee-jerk

Peripheral nervous system

The sensory and motor neurons that connect the central nervous system to the rest of the body

Somatic nervous system

The division of the peripheral nervous system that controls the body's skeletal muscles

Sympathetic nervous system

The division of the autonomic nervous system that arouses the body, mobilizing its energy

Nervous system

The body's speedy, electrochemical communication network, consisting of all the nerve cells of the peripheral and central nervous systems

Sensory neurons

Neurons that carry incoming information from the body's tissues and sensory receptors to the brain and spinal cord

Autonomic nervous system

The part of the peripheral nervous system that controls the glands and the muscles of the internal organs

Nerves

Bundled axons that form neural cables connecting the central nervous system with muscles, glands, and sensory organs

Parasympathetic nervous system

The division of the autonomic nervous system that calms the body, conserving its energy

Central nervous system

The brain and spinal cord

Interneurons

Neurons within the brain and spinal cord; they communicate internally and process information between the sensory inputs and motor output

Brain and Spinal Cord

Central Nervous System

Cranial nerves and spinal nerves

Peripheral nervous system

Heart muscle, smooth muscle, glands

Autonomic nervous system

Voluntary skeletal muscle

Somatic nervous system

Rest and digest

Parasympathetic Division

Active and alert

Sympathetic division

Dendrites

Neuron- 1:

Nucleus

Neuron- 2:

Cell Body

Neuron- 3:

Myelin Sheath

Neuron- 4:

Axon

Neuron- 5:

Synapse

Neuron- 6: