The Nervous System Unit

Which part of a neuron is most similar to other cells in the body?

• Dendrite

• Axon

• Glia

• Body

What is the insulated coating or sheath on some axons called?

• Dendrite

• Glia

• Neurotransmitter

• Myelin

You look at a nerve cell under a microscope and see something that looks like a tiny tree stretching outwards. What function does this part of the cell perform?

• produces energy to transmit to other cells

• protects the cell from bacteria or viruses

• receives stimuli that is sent to the body and axon

• moderates the speed of electrical impulses sent from the cell

Tags

NGSS.MS-LS1-2

You look at a nerve cell under a microscope and see that it has several dendrites. What part of the body could it be from?

• Brain

• Eye

• Inner Ear

• Olfactory pathway

You look at a nerve cell under a microscope and see that it has one axon and no dendrites. What type of neuron must it be?

• Unipolar

• Efferent

• Interneuron

• Bipolar

What is the blood brain barrier?

• the feature that helps maintain homeostasis of the brain

• the function of red blood cells providing energy to power neurons

• the chain of interactions that allows an electric pulse to be interpreted as taste, smell, and so on

• the thin protective membrane that covers the spinal column

Tags

NGSS.HS-LS1-3

Which type of glia are most similar to your skin cells?

• Astrocytes

• Interneruons

• Ependymal

• Microglia

Which type of glia is found outside the CNS?

• Schwann cells

• Microglia

• Astrocytes

• Oligodendrocytes

Which type of cell reacts to protect threatened brain tissue?

• Schwann cells

• Microglia

• Astrocytes

• Oligodendrocytes

When your doctor tests your reflexes by tapping your knee with a hammer, what part of your nervous system is responding?

• Cerebellum

• Diencephalon

• Spinal cord

• Occipital lobe