Laboratory Manual For Human Anatomy & Physiology
4th Edition
ISBN: 9781260159363
Author: Martin, Terry R., Prentice-craver, Cynthia
Publisher: McGraw-Hill Publishing Co.
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Textbook Question
Chapter 27, Problem 5PL
Schwann cells
a. are only in the brain.
b. are only in the spinal cord.
c. are throughout the CNS.
d. have a myelin sheath and neurilemma.
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Mark the following statements as true of false. If a statement is false, correct it to make a true statement. a. Ependymal cells regulate the composition and movement of cerebrospinal fluid. b. Schwann cells make myelin in the peripheral nervous system c. Microglia are neuroglial cells with an immune function. d. Oligodendrocytes repair damaged axons in the peripheral nervous system. e. Astrocytes regulate the extracellular environment of the brain and are key components of the blood-brain barrier. f. Oligodendrocytes and Schwann cells perform similar functions in different parts of the nervous system.
18) Which type of glial cell is a macrophage ( phagocyte )?a. Microglia.b. AstrocYte.c. Oligodendrocyte.d. Schwann cell.
35) Glial cells that produce the myelin sheath in the CNS are
a. microglia ceIls.
b. oligodendrocytes.
c. astrocytes.
d. all of the above.
Chapter 27 Solutions
Laboratory Manual For Human Anatomy & Physiology
Ch. 27 - The cell body of a neuron contains the a. nucleus....Ch. 27 - A multipolar neuon contains a. one dendrite and...Ch. 27 - Neuroglia that produce myelin insulation in the...Ch. 27 - The PNS contains a. 12 pairs of cranial nerves...Ch. 27 - Schwann cells a. are only in the brain. b. are...Ch. 27 - A ______________ neuron is the most common...Ch. 27 - Prob. 7PLCh. 27 - Prob. 8PLCh. 27 - Match the terms in column A with the descriptions...Ch. 27 - Match the terms in column A with the descriptions...
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- Axons found around the area indicated by the arrow in the figure above are myelinated by A. astrocytes B. dorsal root ganglion cells C. microglia D. oligodendrocytes E. Schwann cellsarrow_forwardWhite matter is , and gray matter is . a. comprised of axons; comprised of cell bodies and dendrites b. myelinated; unmyelinated c. found in the CNS; also found in the CNS d. All of the choices are correct.arrow_forwardWhich of the following is (are) true about the myelin sheath? a. made of Schwann cells b. allow for saltatory conduction c. insulate the nerve cell d. all of thesearrow_forward
- Schwann cells are a type of glial cell found in the nervous system. In addition to the conduction of nerve impulses, the outermost layer called neurilemma aids in nerve development and regeneration. After examining the image below, can you explain why brain cells have a. Neurons in the central nervous system lack neurilemma of Schwann cells. b. Neurons in the central nervous system are surrounded by white matter. c. Axons of the peripheral nervous system lack neurilemma of Schwann cells. d. Neurons in the peripheral nervous system are surrounded by grey matter.arrow_forward17) What part of a neuron contains the nucleus? a. Dendrite.b. Cell body (soma).c. Axon.d. Node of Ranvier. 18) Which type of glial cell is a macrophage ( phagocyte )?a. Microglia.b. AstrocYte.c. Oligodendrocyte. d. Schwann cell.arrow_forwardWhich of the following is/are found only in the PNS? a. Nerves b. Astrocytes c. Myelin d. Lipofuscin e. Unmyelinated axonsarrow_forward
- The axons of myelinated neurons are imbedded in a protective covering of A. Schwann cells B. gray matter. C. nodes of Ranvier D. synaptic knobs.arrow_forwardThe junction between the axon of one cell and the dendrite of another is calleda. neurilemma.b. myelin.c. synaptic cleft.d. nodes of Ranvier.arrow_forwardSmall gaps in the myelin sheath where the axon is exposed to the extracellular environment are called A. nodes of Ranvier B.oligodendroglia C.neuroglia D. Schwann cells.arrow_forward
- 33) What part of a neuron is responsible for receiving information?a. Axon.b. Node of Ranvier.c. Dendrite.d. Myelin sheath.arrow_forwardWhich of the following is not a part of the periphrial nervous system (PNS)? a.somatic nervous system b.autonomic nervous system c.sensory neurons d. motor neurons e. spinal cordarrow_forwardAnother name for the axon of a neuron is:- a. nerve fiber. b. neurofibril. c. neurilemma. d. axoplasm. e. endoneuriumarrow_forward
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