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Nervous System Overview

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Questions and Answers

What are the two divisions of the functional nervous system?

Somatic nervous system and autonomic nervous system (ANS)

What are the two main parts of the nervous system?

Central nervous system (CNS) and Peripheral nervous system (PNS)

What is the function of myelin in nerve cells?

To help convey the nerve impulse rapidly

What is the role of axon terminals in the nervous system?

To make connections on target cells Signup and view all the answers

What are nuclei and ganglia in the nervous system?

Clusters of nerve cell bodies in CNS and PNS, respectively Signup and view all the answers

What are the different types of synapses based on pre- and post-synaptic components?

Axo-axonic, axo-secretory, axodendritic, axosomatic, dendro-dendritic, axosomatic, and neuromuscular synapses Signup and view all the answers

Describe the composition of gray matter in the CNS.

Gray matter consists of nerve cells embedded in neuroglia. Signup and view all the answers

What is the function of neurotransmitters in synaptic transmission?

Neurotransmitters are chemical messengers that transmit information between neurons. Signup and view all the answers

How are spinal nerves classified based on their location?

There are 31 pairs of spinal nerves classified into 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal. Signup and view all the answers

Differentiate between white matter and gray matter in the CNS based on their composition.

White matter consists of myelinated nerve fibers (axons) embedded in neuroglia, while gray matter consists of nerve cells embedded in neuroglia. Signup and view all the answers

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