Preparing the body for the "fight-or-flight" response is the role of the   a.parasympathetic division b.somatic nervous system c.cerebrum d.sympathetic division

a. To release substances into the blood O b. To detect transmitter concentrations in the cleft O c. To release neurotransmitters into extracellular fluid d. To release the neurotransmitter acetylcholine QUESTION 15 What distinguishes the ANS from the somatic motor system? a. The ANS excites its peripheral targets. b. The ANS balances synaptic excitation and inhibition. c. The ANS has a single function. d. The ANS constitutes total neural output. QUESTION 16 Which of the following describes neurohormones? a. Hormones that affect nerve cell activity b. Hormones that inhibit nerve cell activity axon termi Click Save and Submit to save and submit. Type here to search Ali

Response to a stimulus within the central nervous system differs from that of a reflex arc because  a. Depolarization deos not occur along the reflex arc b. No acetylcholine is released in the central nervous system c. There is no interpretation of the information within the reflex arc d. Nerve impulses travel in the central nervous system at a greater speed

The part of the brain in which the reticular formation can be found is called the  a. metencephalon b. myelencephalon c. mesencephalon d. diencephalons

Which nucleus in the thalamus is part of the limbic system? a. VA b. VPL c. VPM d. Anterior

In the cerebellum, parallel fibers arise from a. Basket cells b. Purkinje cells  c. Granule cells d. Climbing fibers

Match the following nerve tissue with the correct histological answer below Ependymal cells A. Involved in the production of myelln sheets within the central nervous system. Satellite cells B. Involved in the production of myelln sheets within the peripheral nervous system. Microgla C. Surround sensory. sympathetic, and parasympathetic ganglia in the peripheral nervous system. Ollgodendrocyte D. Involved in the bulding and secretion of cerebrospinal fluld. E. Regulate lon concentration and help In neuronal regulation of blood flow within the central nervous Neurons system. Astrocyte F. Pass information (Impulses) from one area to another through electrical and chemical signals. G. Specialized macrophages capable of phagocytosis. Schwann cells

Ascending pathways en route to thalamus include a. Medial lemniscus b. Spinothalamic / trigeminothalamic tracts c. Cerebellothalamic fibers from dentate nucleus d. All of the above

Sympathetic stimulation to lung tissue A. Causes activation of beta2 receptors which contract smooth muscles of airways. B. Causes activation of beta1 receptors which relax smooth muscles of airways C. Causes activation of beta2 receptors which relax smooth muscles of airways. D. Causes activation of beta1 receptors which contract smooth muscles of airways

What is the underlying pathogenesis for the development of epileptic seizures? a. Overstimulated neurons propagate action potentials all at once. b. Decreased number neurons are properly stimulated. c. The neuronal NMDA receptors are overstimulated by GABA. d. Under stimulated neurons fail to depolarize.