Nervous system part 1

The nervous system is composed of the ___, ___, and ___.

• heart, brain, kidneys
• lungs, liver, stomach
• brain, spinal cord, nerves
• eyes, pancreas, veins

What is the function of the nervous system?

• to control and coordinate body functions and systems.

• to protect the body from harm.

• to identify pain and begin healing.

• to break down food.

What does the axon carry?

• Impulses away from the cell body

• Impulses to the cell body

• chemicals

• messages

What do the motor neurons do?

• carry messages from the brain and spinal cord to muscles and glands

• carry impulses from skin and sends to organs the to spinal cord and brain

• carry impulses from sensory neurons to motor neurons

• store messages

Symptoms include: Double vision, Balance problems, caused by immune system eating away at protective nerve covering

• Multiple Sclerosis

• Concussion

• Meningitis

• Encephalitis

Which are the main divisions of the nervous system?

• afferent and efferent
• peripheral and central
• somatic and autonomic
• sympathetic and parasympathetic

What is the central nervous system made up of?

• brain and spinal cord
• cranial and spinal nerves
• sensory and motor systems
• sympathetic and parasympathetic systems

This insulating material forms a layer, around the axon of a neuron.  It enables electrical signals to travel down the axon at higher speeds.

• neuron
• myelin sheath
• dendrite
• neurotransmitter

Identify #2

• axon

• cell body

• dendrite

• myelin sheath

Identify #3

• axon

• cell body

• dendrite

• myelin sheath

Tags

NGSS.MS-LS1-2