The Role of the Central Nervous System

What is a response?

• A set of special cells and organs

• Changes to our surroundings

• An action of an organism because of a change in its environment

• A hydra, planarian and spider

Tags

NGSS.MS-LS2-4

What is the nervous system?

• Cells and organs that let an animal detect changes and respond to them

• Special cells that are in a persons fingers and toes

• The part of the brain that controls your heartbeat

• The part of the spinal cord that makes your bones and muscles work together

Tags

NGSS.MS-LS1-8

NGSS.MS-LS1-3

A hydra is made up of...

• Body nerves, nerve cord and brain

• Nerve nets

• Brain like part and eye spots

• Nerve dendrites and eyes

What parts form the nervous system?

• Nerve nets and a spinal cord

• Sense organs and the brain

• Nerve cells, sense organs and usually a brain

• The brain and spinal cord

A spider can respond more quickly than planarians

• True

• False

Tags

NGSS.MS-LS1-8

How many nerves are in your body?

• Hundreds

• Thousands

• Millions

• Billions

The main job of a nerve is?

• To carry messages throughout the body

• To respond to changes in light and dark

• To help you walk, talk and breathe

• None of the above

Nerve cells are called?

• Dendrites

• Pathways

• Neurons

• Insulation

Tags

NGSS.MS-LS1-3

Neurons are often compared to?

• Telephone poles

• Electrical wires

• Cable cords

• Synapses

What is the term for neurons bunched together?

• Nerve

• Dendrite

• Synapse

• Axon