ANATOMY & PHYSIOLOGY LL W/CONNECT ACCESS
4th Edition
ISBN: 9781265521363
Author: McKinley
Publisher: MCG
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Chapter 12, Problem 6DYKB
Summary Introduction
Introduction:
Neuron is a basic and functional unit of nervous system and is the specialized cells of nervous system that makes a complex network for the transmission of message. A neuron is made up of a cell body, nerve fibers: dendrites and an axon in its structure.
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Multiple sclerosis is a demyelinating disease, in which the patient’s immune system attacks and destroys the cells that form the myelin sheath in the central nervous system. Which cell would be responsible? Would Schwann cells or oligodendrocytes, both or none of them be affected?
a.
Schwann cell
b.
Oligodendrocytes
c.
Both Schwann cells and Oligodendrocytes
d.
None of the above
The cells of neuroglia are formed from two sources: ectoderm and mesenchyme.
What cells have the mesenchymal origin?
a. Fibrillar astrocyte
b. Microgliocytes
c. Ependymal cell
d. Oligodendrocyte
e. Protoplasmic astrocyte
Match the neuroglia with the correct function:
A. Satellite cells
B. Schwann Cells
C. Oligodendrocytes
D. Ependymal
E. Microglia
F. Astrocytes
1. Cells that produce the myelin in the PNS.
2. Cells that produce myelin in the CNS
3. Phagocytes that dispose debris like dead brain cells and bacteria
4. Anchors and braces neurons with cellular projections
5. Cells have cilia that help circulate the cerebrospinal fluid
6. Cells help cushion and protect neurons in the PNS
7. Cells serve as a medium for diffusion between capillaries and neurons
8. Cells line cavities of the brain and spinal cord
Chapter 12 Solutions
ANATOMY & PHYSIOLOGY LL W/CONNECT ACCESS
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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- What type of cells serve the needs of delicate neurons by bracing and protecting them? Are they capable of generating and transmitting nerve impulses? A. ganglia, no B. ganglia, yes C. neuroglia, yes D. neuroglia, no What type of cells myelinate the cytoplasmic extensions of neurons? A. oligodendrocytes and schwann cells B. microglial cells C. astrocytes D. ependymal cells Which structural classification of neurons has only one very short process that extends from the cell body and divides into peripheral and central processes? A. anaxonic neurons B. multipolar neurons C. unipolar neurons D. bipolar neuronsarrow_forwardMeningitis is a viral or bacterial infection of the brain. Which cell type is the first to have its function disrupted during meningitis? a. astrocytes b. microglia c. neurons d. satellite gliaarrow_forwardMatch the types of neuroglia to their functions. (1) ependymal cells (2) oligodendrocytes (3) astrocytes (4) Schwann cells (5) microglial cells A. form a myelin sheath around peripheral nerves B. phagocytize cellular debris and bacteria C. line inner parts of ventricles and spinal cord D. form scar tissue and regulate ion and nutrient concentrations in the CNS E. form a myelin sheath around neurons in the CNSarrow_forward
- Which of the following central nervous system cellsregulate ions, regulate the uptake and/or breakdown ofsome neurotransmitters, and contribute to the formation ofthe blood-brain barrier?a. microgliab. neurogliac. oligodendrocytesd. astrocytesarrow_forwardIn the sympathetic nervous system, which of the following prevents apoptosis? A. Steroid hormones B. Nerve growth factor C. Physical exercise D. Myelinationarrow_forwardBecause of the blood brain barrier, the brain is largely inaccessible to circulating macrophages instead one type of CNS cell (related to macrophages) can become phagocytic. Which type of cell is this?arrow_forward
- Demyelination of axon in peripheral nerves is the cause of: a. Huntington's b. Horners Syndrome c. Multiple sclerosis d. Gullian Barre Syndromearrow_forwardThe main branches of an axon are called ___________. A) telodendria B) axon hillocks C) axon terminals D) axon collaterals E) dendritesarrow_forwardAxons 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_forward
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