Exam 13: The Nervous System: Neural Tissue

Figure 13.4 Using the above-referenced diagram of a synapse, identify the specified labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label F.

Collections of axons in the CNS that have a common origin and destination are called ________.

Cardiac muscle, smooth muscle, and glands are regulated by the ________.

Which of the following is gray matter?

When a stimulus is applied to the axon, it produces a temporary change in the ________ of the axolemma in a localized area of the axon.

Areas of a myelinated axon that are not covered by myelin are called ________.

The type of synapse that allows the most direct communication between cells, and therefore the fastest communication, is the ________ synapse.

Because a neuron loses its centrioles during differentiation, ________.

Electrical synapses are unique, because they have ________.

Parallel processing occurs in a stepwise sequence, from one neuron to another or from one neuronal pool to the next.

Which of the following is the correct sequence of events at a synapse? (1)neurotransmitter release/diffusion (2)generation of action potential in the postsynaptic cell membrane (3)arrival of nerve impulse at an axon terminal in the presynaptic cell (4)removal of neurotransmitter molecules from receptors (5)binding of neurotransmitter to receptors

To transmit a nerve impulse in chemical synapses, the neurotransmitter diffuses across the ________ and binds to receptors on the postsynaptic membrane.

A biopsy of infected or injured tissue from the CNS will most likely show an elevated number of ________.

Figure 13.3 Using the above-referenced diagram of an unmyelinated axon in the PNS, identify the specified labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label A.

When an action potential develops in one location of an axon, ________.

Figure 13.4 Using the above-referenced diagram of a synapse, identify the specified labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label B.

The rate of conduction of a nerve impulse depends upon ________.

Figure 13.2 Using the above-referenced diagram of a myelinated axon in the PNS, identify the specified labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label D.

Figure 13.1 Using the above-referenced histological diagram of neural tissue in the CNS, identify the specified labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label K.

Pathways that connect the CNS with effectors include ________.