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Exam 14: Nervous Tissue

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Question 1

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Saltatory propagation differs from continuous propagation in that ________.

A) saltatory propagation occurs when an action potential moves from node to node along myelinated axons
B) saltatory propagation is slower than continuous propagation.
C) continuous propagation occurs when an action potential moves from node to node along unmyelinated axons
D) There is no difference between the two types of action potential propagation.

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Question 2

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The ________ is the layer of connective tissue that surrounds a nerve.

A) fascicle
B) perineurium
C) epineurium
D) axon

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Question 3

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________ neurons possess one axon and one dendrite.

The three layers of the cerebellar cortex are the ________.

The ________ lies between the presynaptic and postsynaptic membranes.

Which of the following statements is correct?

Which of the following statements is correct?

Which of the following types of neurons serves as motor neurons for voluntary and involuntary movements?

________ contains mostly myelinated axons,whereas ________ contains cell bodies,dendrites,and unmyelinated axon fibers.

Complete the following statement: The posterior horn of the gray matter of the spinal cord ________.

Cranial and spinal nerve fascicles are covered by the ________.

Put the steps of impulse transmission at a synapse in the correct order.1.Action potential promotes the entry of calcium ions into the synaptic knob.2.Neurotransmitter diffuses across the synaptic cleft.3.The presynaptic membrane releases neurotransmitter by exocytosis.4.Nerve impulse travels along the axon to the synaptic terminal.5.Neurotransmitter binds to receptors on the postsynaptic membrane.6.Secretory vesicles containing neurotransmitter fuse with the presynaptic membrane.

The spinal nerves of the PNS are formed by the combination of ________.

What group of cells provides support and protection for neurons?

Which type of neuroglia surrounds cell bodies in peripheral ganglia and regulates the continuous exchange of nutrients and waste products between neurons and their environment?

________ form myelin sheaths in the peripheral nervous system,whereas ________ form myelin sheaths in the central nervous system.

Neuron processes that carry impulses toward the cell body are called ________.

A junction specialized for communication between neurons is called a ________.

Where are bipolar neurons located?

Which of the following types of glial cells connect neurons to blood vessels,helps form the blood-brain barrier,and assists in the regulation of oxygen,carbon dioxide,and nutrients?