Neuroglial Cells Classification Quiz

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What is the function of Schwann cells in the peripheral nervous system?

Schwann cells create the myelin sheath around axons in the PNS, speeding up neurotransmission.

What role do satellite cells play in the peripheral nervous system?

Satellite cells support clusters of neuron cell bodies in PNS ganglia and act to protect and repair ganglia.

How do oligodendrocytes contribute to the central nervous system?

Oligodendrocytes create the myelin sheath around axons of CNS neurons, providing insulation and allowing signals to propagate faster.

What are the functions of astrocytes in the central nervous system?

Astrocytes maintain appropriate chemical environment, provide nutrients to neurons, take up excess neurotransmitters, help in neuron migration, form the Blood Brain Barrier, and recapture/recycle neurotransmitters. Signup and view all the answers

Describe the role of microglia in the nervous system.

Microglia are small cells with few processes that also give rise to monocytes and macrophages. Signup and view all the answers

How do neuroglial cells provide metabolic and mechanical support for neurons?

Neuroglial cells provide support 10 times more abundant than neurons, undergoing mitosis to assist in various functions. Signup and view all the answers

What is the unique characteristic of neural stem cells in terms of cell division?

They can undergo mitosis and divide. Signup and view all the answers

Do neural stem cells have the ability to produce and secrete neurotransmitters?

No, they cannot produce or secrete neurotransmitters. Signup and view all the answers

How many types of processes do neural stem cells typically have?

They have two types of processes: one long axon and several short processes. Signup and view all the answers

What is the main difference between the function of neurons and neural stem cells?

Neurons can function optimally for the entire life, while neural stem cells can divide. Signup and view all the answers

What is the main difference in excitability between neurons and neural stem cells?

Neurons are excitable cells that can initiate and transmit nerve impulses, unlike neural stem cells. Signup and view all the answers

Can neural stem cells multiply if the CNS is damaged or infected?

Yes, neural stem cells can multiply if the CNS is damaged or infected. Signup and view all the answers

What are the effector organs of the autonomic nervous system?

Smooth muscles, cardiac muscle, and glands Signup and view all the answers

Where do the sympathetic nerves originate from in the autonomic nervous system?

Thoracic and lumbar regions Signup and view all the answers

What is the main function of the parasympathetic nervous system?

Predominates during rest, slows down body processes except digestive and genitourinary systems Signup and view all the answers

How many motor neurons are there between the CNS and effectors in both sympathetic and parasympathetic divisions?

2 Signup and view all the answers

Where is the cell body of the preganglionic neuron located in the autonomic nervous system?

In the brain or in the spinal cord Signup and view all the answers

In which division of the autonomic nervous system are the autonomic ganglia arranged in a chain near the spinal cord?

Sympathetic Signup and view all the answers