Exam 11: Fundamentals of the Nervous System and Nervous Tissue

Match the following: -An exceptionally strong stimulus can trigger a response.

Match the following: -The neuron cannot respond to a second stimulus,no matter how strong.

When a neurotransmitter like GABA is acting in an inhibitory manner which of the following is likely a result of the GABA acting on the post synaptic cell?

Figure 11.2 Using Figure 11.2, match the following: -Synaptic vesicles.

Cranial nerve II,the optic nerve sends nerve impulses to the brain carrying information about the things we see.These nerve fibers most likely belong to which division of the nervous system?

Saltatory conduction is made possible by ________.

Which of the following is an excitatory neurotransmitter secreted by motor neurons innervating skeletal muscle?

The concentration neurotransmitters in the fluid of the synaptic cleft must be tightly regulated for neurons to function properly.Which of the following cells is most responsible for aiding in this regulation?

The action potential is caused by permeability changes in the plasma membrane.

Like all cells,the neurons' internal organization dictates its function.Neurons have relatively many mitochondria,an extensive network of rough endoplasmic reticulum and many clusters of ribosomes.These cellular features indicate all of the following EXCEPT ________.

What does the central nervous system use to determine the strength of a stimulus?

The interior surface of a neuron's plasma membrane at resting membrane potential will have a ________.

If a post synaptic neuron is stimulated to threshold by spatial summation this implies that ________.

The period after an initial stimulus when a neuron is not sensitive to another stimulus is the ________.

Figure 11.1 Using Figure 11.1, match the following: -Which neuron would be found in the retina of the eye?

Which of the choices below describes the ANS?

Nerve impulses leading to the skeletal muscle carry information to direct movement.The nerve fibers sending these signals will most likely belong to which division of the nervous system?

Collections of nerve cell bodies outside the central nervous system are called ________.

Neuroglia found in the CNS that change the permeability of capillaries in the brain by binding to and surrounding these blood vessels are called ________.

These cells in the CNS have cilia that move in order to circulate cerebrospinal fluid ________.