Nervous System 1

Our ______ receive messages and send them to the brain. The brain sends messages to our body on how to respond.

• heart

• lungs

• nerves

Without the nervous system, you couldn't

• walk

• breathe

• think

• all of the above

What is the nervous system?

• Controls the body by responding to stimuli.

• Breaks down food.

• Brings O₂ to our cells.

• Secretes hormones into our blood.

What are the two parts of the central nervous system?

• Brain and heart

• Lungs and spinal cord

• Spinal cord and heart

• Brain and spinal cord

The spinal cord connects the ________________ to the rest of the body.

• brain

• heart

• arms and legs

• lungs

These receive signals in a neuron.

• myelin sheath

• axon

• ribosome

• dendrites

The nerve cell that carries impulses from a sense receptor to the brain or spinal cord is a _____________.

• Motor Neuron
• Sensory Neuron
• Relay Neuron

The nerve cell that transmits impulses from the brain or spinal cord to a muscle or gland.

• Motor Neuron
• Relay Neuron
• Sensory Neuron
• Schwann cell

What part of the neuron carries the impulse toward the nerve cell body?

• Dorsal Root
• Dendrites
• Myelin Sheath
• Axon

What part of the neuron is myelinated?

• Cell Body
• Axon
• Synapse
• Dendrite