What are neurons?

Neurons are ______ cells!

• nerve

• blood

• muscle

• skin

Neurons send ______ AND chemical signals to each other.

• electrical

• magnetic

• thermal

• optical

According to the passage, how many different types of neurons are there?

• 2

• 3

• 4

• 5

The three types of neurons are ________, relay, and motor.

• sensory

• cognitive

• intermediate

• receptor

Sensory neurons carry messages from the _______ nervous system to the central nervous system.

• peripheral

• autonomic

• digestive

• skeletal

Match the type of neuron to its function:

• C

• Carries messages from peripheral nervous system to the central nervous system

• B

• Carries messages from the CNS to effectors

• A

• Connects sensory neurons to motor neurons

Look at the diagram of the neuron (Fig 3. Neurone Structure).

• Cell Body, Long Axon, Dendrites, Myelin Sheath

• Nucleus, Short Axon, Synapse, Schwann Cell

• Cell Wall, Axon Terminal, Chloroplast, Myelin Layer

• Soma, Short Dendrites, Axon Hillock, Node of Ranvier

What part of the neuron contains DNA?

• Nucleus

• Axon

• Dendrite

• Myelin sheath

What is the function of the myelin sheath in a neuron?

• It carries signals

• It insulates and speeds up the signal

• It connects to other neurons

• It contains DNA

The terminal button is located at the end of the axon and connects to _______.

• other neurons or target cells

• the cell nucleus

• the myelin sheath

• the dendrite membrane