Nervous System Quiz

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Which type of cells transmit nerve impulses?

Glial Cells

Axons

Dendrites

Neurons (correct)

What is the function of dendrites?

Receive information from other neurons at synapses (correct)

Respond to environmental changes

Initiate action potential

Process and send information

Where is the axon hillock located?

In the cytoplasm

Connected to the cell body (correct)

At the end of the axon

In the dendrites

What is the function of the axolemma?

Plasma membrane of the axon Signup and view all the answers

What is the function of glial cells?

Support and protect neurons Signup and view all the answers

What is the role of the cell body (soma) in a neuron?

Information/metabolic center Signup and view all the answers

What are the components of the cytoplasm in a neuron's cell body?

Polyribosomes, highly developed RER, Nissl Substance, Golgi, mitochondria Signup and view all the answers

What is the function of the Nissl Substance in a neuron's cell body?

Indicate high protein synthesis rate Signup and view all the answers

What are the histological features of different regions of the nervous system used to identify?

Identify different regions of the nervous system Signup and view all the answers

What is the role of dendritic spines in a neuron?

Tiny projections and typical site of synapse Signup and view all the answers

Which connective tissue layer surrounds groups of fascicles (groups of axons)?

Perineurium Signup and view all the answers

What is the connective tissue layer that surrounds nerves (groups of fascicles)?

Epineurium Signup and view all the answers

What is the connective tissue layer that surrounds axons?

Endoneurium Signup and view all the answers

What is the function of Schwann cells?

To surround individual axons Signup and view all the answers

What is the function of perineurium?

To surround groups of fascicles Signup and view all the answers

What is the function of epineurium?

To surround nerves Signup and view all the answers

What is the main difference between white matter and gray matter?

White matter contains axons, while gray matter contains neuronal cell bodies Signup and view all the answers

Which part of the brain contains pyramidal neurons and astrocytes?

Cerebrum Signup and view all the answers

Which part of the brain contains molecular layers, granular layers, and purkinje neurons?

Cerebellum Signup and view all the answers

What is the function of choroid plexus?

To produce cerebrospinal fluid Signup and view all the answers

Which type of neuron has 2 or more dendrites and 1 axon?

Multipolar neuron Signup and view all the answers

Which type of neuron has 1 dendrite and 1 axon?

Bipolar neuron Signup and view all the answers

Which type of neuron has a single process that splits into two branches, one longer and one shorter?

Unipolar/Pseudounipolar neuron Signup and view all the answers

Which type of neuron has many dendrites but no axon?

Anaxonic neuron Signup and view all the answers

Which type of synapse connects the axon to the cell body of another neuron?

Axosomatic synapse Signup and view all the answers

Which type of synapse converts electrical signals into chemical signals using neurotransmitters?

Synapses Signup and view all the answers

What is the function of astrocytes in the CNS?

Blood brain barrier, structural and metabolic support, growth factor secretion, homeostasis, injury scarring Signup and view all the answers