ANATOMY & PHYSIOLOGY 4/E PAC 2 SEMESTER
4th Edition
ISBN: 9781264593286
Author: McKinley
Publisher: MCG CUSTOM
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Chapter 12, Problem 5DYKB
Summary Introduction
Introduction:
Neural tissue involves two types of cells: neurons and neuroglia. Neuroglia or glial cells are the supporting cells of the nervous system. These cells protect the neurons from damage and provide a protected environment.
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Schwann cells have a function in the PNS that is similar to that of which cells in the CNS?
Group of answer choices
a.Oligodendrocytes
b.Astrocytes
c.Microglia
d.Ependymal cells
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.
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 cells
Chapter 12 Solutions
ANATOMY & PHYSIOLOGY 4/E PAC 2 SEMESTER
Ch. 12.1 - Prob. 1WDYLCh. 12.1 - Prob. 2WDYLCh. 12.1 - Prob. 3WDYLCh. 12.2 - Prob. 4WDYLCh. 12.2 - Prob. 5WDYLCh. 12.2 - Prob. 6WDYLCh. 12.2 - Prob. 7WDYLCh. 12.2 - Prob. 8WDYLCh. 12.3 - Prob. 9WDYLCh. 12.4 - If a person has a brain tumor, is it more likely...
Ch. 12.4 - Prob. 11WDYLCh. 12.4 - Prob. 12WDYLCh. 12.4 - Prob. 13WDYLCh. 12.5 - Prob. 14WDYLCh. 12.5 - Prob. 15WDYLCh. 12.6 - Prob. 16WDYLCh. 12.6 - Prob. 17WDYLCh. 12.7 - Prob. 18WDYLCh. 12.7 - Prob. 19WDYLCh. 12.7 - Prob. 20WDYLCh. 12.8 - How are EPSP and IPSP graded potentials...Ch. 12.8 - Prob. 22WDYLCh. 12.8 - How does depolarization and repolarization occur...Ch. 12.8 - Prob. 24WDYLCh. 12.8 - Prob. 25WDYLCh. 12.9 - Prob. 26WDYLCh. 12.9 - Prob. 27WDYLCh. 12.9 - Prob. 28WDYLCh. 12.10 - Prob. 29WDYLCh. 12.10 - Prob. 30WDYLCh. 12.10 - Prob. 31WDYLCh. 12.11 - Prob. 32WDYLCh. 12.11 - Prob. 33WDYLCh. 12 - Prob. 1DYKBCh. 12 - Prob. 2DYKBCh. 12 - Prob. 3DYKBCh. 12 - Prob. 4DYKBCh. 12 - Prob. 5DYKBCh. 12 - Prob. 6DYKBCh. 12 - _____ 7. An action potential is generated when...Ch. 12 - Prob. 8DYKBCh. 12 - Prob. 9DYKBCh. 12 - Prob. 10DYKBCh. 12 - What are the four structural types of neurons? How...Ch. 12 - Prob. 12DYKBCh. 12 - How does myelination differ between the CNS and...Ch. 12 - Describe the procedure by which a PNS axon may...Ch. 12 - Prob. 15DYKBCh. 12 - Prob. 16DYKBCh. 12 - Explain summation of EPSPs and IPSPs and the...Ch. 12 - Graph and explain the events associated with an...Ch. 12 - Prob. 19DYKBCh. 12 - Prob. 20DYKBCh. 12 - Prob. 1CALCh. 12 - Prob. 2CALCh. 12 - Prob. 3CALCh. 12 - Prob. 4CALCh. 12 - Sarah wants to call her new friend Julie and needs...Ch. 12 - Over a period of 6 to 9 months, Marianne began to...Ch. 12 - Prob. 2CSLCh. 12 - Prob. 3CSL
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- Which of the following is a part of the PNS? a. microglia b. spinal cord c. brain d. neurolemmocytearrow_forwardDemyelination of axon in peripheral nerves is the cause of: a. Huntington's b. Horners Syndrome c. Multiple sclerosis d. Gullian Barre Syndromearrow_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_forward
- A(n) ________ neuron has one axon and one dendrite extending directly from the cell body. a. unipolar b. bipolar c. multipolar d. pseudounipolararrow_forwardIn the sympathetic nervous system, which of the following prevents apoptosis? A. Steroid hormones B. Nerve growth factor C. Physical exercise D. Myelinationarrow_forwardDamage to neurons from Alzheimer's disease may prevent neurons from receiving signals from other neurons. Which of the following structures of a neuron is first affected by the damage? Select one: a. Axon b. Cell Body c. Axon Terminal d. Dendritesarrow_forward
- What kinds of neurons (sympathetic or parasympathetic, preganglionic or postganglionic) are found in the following? a. cranial nerve nuclei b. lateral horn of the thoracic spinal cord gray matter c. lateral portion of the sacral spinal cord gray matter d. chain ganglia e. ganglia in the wall of an organarrow_forwardWhich of the following cells line the ventricles of the brain? O A. Oligodendrocytes O B. Ependymal cells O C. Microglia O D. Astrocytesarrow_forwardNeurotransmission is the way that brain cells communicate, and the bulk of those communications occur at a site called the a. Basal Ganglia b. Neurons c. Synapses d. Hypothalamusarrow_forward
- The membrane of a neuron is composed of __________ with __________ embedded in them. a. proteins; neurotransmitters b. lipids; proteins c. carbohydrates; purines d. benzene molecules; carbohydrates Which cell type sends out axons that become the optic nerve? a. bipolar b. ganglion c. horizontal d. amacrinearrow_forward1a) Glial fibrillary acidic protein (GFAP) is a structural protein that is normally expressed in ________ and ________, but not _______. Select one: a. Centralized glia, astrocytes, neurons b. Astrocytes, neurons, centralized glia c. Neurons, radial glia, astrocytes d. Neurons, astrocytes, radial glia e. Astrocytes, radial glia, neurons 1b) Because noggin, chordin, and follistatin all play a role in neural plate differentiation, there is _________ of gene effects. Select one: a. Redundancy b. Pleiotropy c. Silencing d. Automation e. Reluctancyarrow_forwardSchwann 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_forward
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