Nervous System

As organisms get more complex, cells become specialized to perform specific functions in the body. What is the function for the cell shown?

• contract and shorten movement

• provide coverage and protection

• carry impulses around the body

• connects parts together

The main function of the nervous system

• send messages to and from the brain and spinal cord to and from the body

• break down food to be used by the body

• remove wastes from the body

• all of these

Which part of the neuron transmits impulses to other neurons?

• axon

• cell body

• dendrite

• node

What is a nerve cell?

• axon

• neuron

• dendrite

• myelin

Which 2 are parts of the central nervous system?

• brain

• nose

• spinal cord

• left big toe

Cranial nerves and spinal nerves are part of the peripheral nervous system.

• True

• False

The two major parts of the nervous system are the

• brain and spinal cord

• central and somatic nervous systems

• sympathetic and parasympathetic systems.

• peripheral and central nervous systems

Neurotransmitters are ______________ that travel across the ______________ to another cell.

• electrical signals; receptors

• electrical signals; synapse

• chemicals; receptors

• chemicals; synapse

What part of the neuron is number 4 pointing at?

• Dendrite

• Axon Terminal

• Axon

• Myelin Sheath

Which part of the Neuron is number 1 pointing at?

• Dendrite

• Cell body

• Axon

• Nucleus