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Chapter 24, Problem 4MC
Summary Introduction

Introduction:

Dendrites act as the signal receptors of the neurons.

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Which.of the following statements is WRONG? Select one: O a. Nerve cells have excitable membranes O b. Nerve cells typically have one axon and several dendrites O C. Nerve cells can contact skeletal muscle cells O d. Nerve cells can only be found, in humans (or mice), in the central nervous system O e. Nerve cell bodies in the central nervous system are found in the grey matter Which of the following statements is NOT true: Select one: O a. Nerve cells typically communicate with each other at synapses Ob. Synaptic communication between nerve cells involves a soluble, chemical signal OC. Synaptic communication between nerve cells is dependent upon regulated exocytosis. O d. Synaptic communication can also occur if calcium ions are removed from the extracellular fluid.
Please note these are all one question group and should be answered as such!   Which of the following statements accurately defines epineurium?   A. Fluid-filled space at a synapse through which neurotransmitters diffuse   B. A vesicle containing neurotransmitters in the axon terminal of a neuron   C. The CT sheath that binds together the groups of fascicles, blood vessels, and lymphatic vessels in a peripheral nerve   D. The branch of the ANS that adapts the body for rest and digestion Which of the following statements accurately defines sacral plexus?   A. The ventral rami of C1–C4 (and a small contribution from C5) that serve the head and neck   B. The ventral rami of L1–L4 that serve the pelvis and lower limb   C. The ventral rami of C5–T1 that serve the upper limb   D. The ventral rami of L4–S4 that serve the pelvis and lower limb
Glial cells far outnumber neurons and contribute roughly half the weight of the mammalian nervous system. What functions do glial cells perform in the peripheral nervous system and in the central ner-vous system?
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