30 Questions
Which type of cells transmit nerve impulses?
Neurons
What is the function of dendrites?
Receive information from other neurons at synapses
Where is the axon hillock located?
Connected to the cell body
What is the function of the axolemma?
Plasma membrane of the axon
What is the function of glial cells?
Support and protect neurons
What is the role of the cell body (soma) in a neuron?
Information/metabolic center
What are the components of the cytoplasm in a neuron's cell body?
Polyribosomes, highly developed RER, Nissl Substance, Golgi, mitochondria
What is the function of the Nissl Substance in a neuron's cell body?
Indicate high protein synthesis rate
What are the histological features of different regions of the nervous system used to identify?
Identify different regions of the nervous system
What is the role of dendritic spines in a neuron?
Tiny projections and typical site of synapse
Which connective tissue layer surrounds groups of fascicles (groups of axons)?
Perineurium
What is the connective tissue layer that surrounds nerves (groups of fascicles)?
Epineurium
What is the connective tissue layer that surrounds axons?
Endoneurium
What is the function of Schwann cells?
To surround individual axons
What is the function of perineurium?
To surround groups of fascicles
What is the function of epineurium?
To surround nerves
What is the main difference between white matter and gray matter?
White matter contains axons, while gray matter contains neuronal cell bodies
Which part of the brain contains pyramidal neurons and astrocytes?
Cerebrum
Which part of the brain contains molecular layers, granular layers, and purkinje neurons?
Cerebellum
What is the function of choroid plexus?
To produce cerebrospinal fluid
Which type of neuron has 2 or more dendrites and 1 axon?
Multipolar neuron
Which type of neuron has 1 dendrite and 1 axon?
Bipolar neuron
Which type of neuron has a single process that splits into two branches, one longer and one shorter?
Unipolar/Pseudounipolar neuron
Which type of neuron has many dendrites but no axon?
Anaxonic neuron
Which type of synapse connects the axon to the cell body of another neuron?
Axosomatic synapse
Which type of synapse converts electrical signals into chemical signals using neurotransmitters?
Synapses
What is the function of astrocytes in the CNS?
Blood brain barrier, structural and metabolic support, growth factor secretion, homeostasis, injury scarring
Which glial cell synthesizes myelin in the CNS?
Oligodendrocytes
Which glial cell provides immune defense and performs phagocytosis in the CNS?
Microglia
Which glial cell forms myelin sheaths around peripheral nerves in the PNS?
Schwann cells
Test your knowledge of the nervous system with this quiz! Identify the components of a neuron, various cells in nervous tissue, and understand the function of the cells in the nervous system. Learn about the structure of a synapse and synaptic communication, as well as histological features of different regions of the nervous system.
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