Nervous System (Study Com Article & Clip)

What is the main function of neurons in the body?

• Regulate body temperature

• Store nutrients

• Produce energy

• Carry electrical messages

What are the unusual parts of neurons that allow them to communicate messages?

• Cell membrane and cytoskeleton

• Ribosomes and cytoplasm

• Nucleus and mitochondria

• Dendrites and axons

What is being described:

1. 1. This part of the nervous system acts like telephone lines because they are what allow neurons to communicate messages.

2. 2. This part of the neuron is smaller than axons.

3. 3. Each neuron can have many of these.

4. 4. They look like roots growing out of the cell body.

5. 5. They bring electrical messages into the nerve.

• Axons

• Dendrites

• Myelin

• Neurotransmitters

What is the function of axons in a neuron? HINT: If you remember that axon and away both start with the letter A, it will make it easier to remember the axon's job.

• Produce neurotransmitters

• Cover the dendrites with myelin

• Bring electrical messages into the nerve

• Carry electrical messages away from the nerve cell body

What is the purpose of myelin in the axons of neurons?

• Help the electrical signal move quickly down the axon

• Produce neurotransmitters

• Carry electrical messages away from the nerve cell body

• Bring electrical messages into the nerve

Did you ever whisper a secret in your friends' ear? You shared that secret using words. Your nerve cells don't use words to share their messages. Instead, neurons use ​ (a)   and ​ (b)   signals.

• chemicals
• electrical
• voices
• whispers
• blood cells
• circulation
• oxygen

What is the small gap between two neurons called?

• Dendrite

• Nucleus

• Synapse

• Axon terminal

What are the chemicals that neurons send into the synapse to communicate with other neurons?

• Neurotransmitters

• Hormones

• Enzymes

• Antibodies

Which type of neurons carry messages from your senses toward your brain?

• Sensory neurons

• Motor neurons

• Interneurons

• Receptor neurons

Which type of neurons carry messages from your brain to your muscles or glands?

• Interneurons

• Effector neurons

• Motor neurons

• Sensory neurons