Neurons & Neuroglia Review

What is the primary function of dendrites in a neuron?

• To release neurotransmitters

• To receive and transmit electrical signals to the cell body

• To insulate the neuron

• To conduct electrical signals away from the neuron

What type of neuroglia forms the myelin sheath in the central nervous system?

• Schwann cells

• Oligodendrocytes

• Astrocytes

• Microglia

Which of the following is NOT a function of neurons?

• Transmitting sensory information

• Supporting and protecting neurons

• Processing information

• Sending motor commands to muscles

Astrocytes are a type of neuroglia. Which of the following is a role they play in the nervous system?

• Forming the blood-brain barrier

• Myelinating peripheral neurons

• Engulfing pathogens and debris

• Conducting electrical impulses

What is the main role of microglia in the nervous system?

• To provide structural support

• To produce cerebrospinal fluid

• To act as phagocytes that engulf pathogens and debris

• To speed up neural transmission

Which part of the neuron contains the nucleus?

• Axon

• Dendrite

• Cell body (soma)

• Synaptic terminal

What is the primary role of Schwann cells?

• To form the blood-brain barrier

• To produce myelin in the central nervous system

• To produce myelin in the peripheral nervous system

• To modulate synaptic function

Which of the following best describes the function of an axon?

• To receive chemical signals from other neurons

• To support the neuron structurally

• To conduct electrical impulses away from the neuron's cell body

• To provide nutrients to the neuron

Ependymal cells are a type of neuroglia. What is their primary function?

• To form scar tissue after CNS injury

• To regulate the extracellular fluid composition

• To line the brain and produce cerebrospinal fluid

• To remove neurotransmitters from the synaptic cleft

What is the name of cells that support the cells that send information?

• Neurons
• Axons
• Dendrites
• Neuroglia