Explanation Reason for the correct statement: Schwann cells are present in the peripheral nervous system. They are not present in the brain. These cells have myelin sheath with nodes of Ranvier for the conduction of the impulses through the movement of the ions in the membranes. Option (b) is given as “Schwann cells”. As the “Schwann cells forms the myelin sheath around nerve fibers outside the brain and spinal cord”, it is the right answer. Hence, option (b) is correct. Reasons for the incorrect statements: Option (a) is given as “microglia”...

16th Edition

ISBN: 9781260692174

Author: Mader

Publisher: MCG

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Question

Chapter 4, Problem 7A

Summary Introduction

Introduction:

The brain organ consists of various cells like microglia, neurons, astrocytes and oligodendrocytes. The microglia cells are phagocytic and engulf the foreign pathogens which can cause infections. The neurons consist of axon, dendrites and cyton and conduct the impulses in the brain through the generation of action potential. The astrocytes are connected to the neurons and form the structural framework of the neurons.

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Chapter 4, Problem 6A

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Chapter 4 Solutions

HUMAN BIOLOGY (LOOSELEAF)-W/CONNECT

Ch. 4.1 - Understand where tissues relate in the biological...Ch. 4.1 - Prob. 2LO Ch. 4.1 - Prob. 1CYP Ch. 4.1 - Distinguish between muscular tissue and nervous...Ch. 4.1 - Distinguish between connective tissue and...Ch. 4.2 - Prob. 1LO Ch. 4.2 - Prob. 2LO Ch. 4.2 - Prob. 3LO Ch. 4.2 - Describe the three general categories of...Ch. 4.2 - Explain the difference in the composition of the...

Ch. 4.2 - Prob. 3CYP Ch. 4.3 - Distinguish among the three types of muscles with...Ch. 4.3 - Explain the difference in the structure and...Ch. 4.3 - Describe where each type of muscle fiber is found...Ch. 4.3 - Explain why smooth muscle and cardiac muscle are...Ch. 4.4 - Prob. 1LO Ch. 4.4 - Describe the structure of a neuron.Ch. 4.4 - Prob. 1CYP Ch. 4.4 - Prob. 2CYP Ch. 4.5 - Prob. 1LO Ch. 4.5 - Prob. 2LO Ch. 4.5 - Prob. 1CYP Ch. 4.5 - Prob. 2CYP Ch. 4.5 - Summarize how the structure of some epithelial...Ch. 4.6 - Prob. 1LO Ch. 4.6 - Prob. 2LO Ch. 4.6 - Prob. 3LO Ch. 4.6 - Prob. 1CYP Ch. 4.6 - Prob. 2CYP Ch. 4.6 - Prob. 3CYP Ch. 4.6 - What area of the slain would likely be the hardest...Ch. 4.6 - Prob. 2BTS Ch. 4.7 - Summarize the function of each organ system in the...Ch. 4.7 - Prob. 2LO Ch. 4.7 - Prob. 3LO Ch. 4.7 - Prob. 1CYP Ch. 4.7 - Prob. 2CYP Ch. 4.7 - Prob. 3CYP Ch. 4.8 - Prob. 1LO Ch. 4.8 - Prob. 2LO Ch. 4.8 - Summarize how the body systems contribute to...Ch. 4 - Prob. 1A Ch. 4 - Prob. 2A Ch. 4 - Prob. 3A Ch. 4 - Prob. 4A Ch. 4 - Prob. 5A Ch. 4 - Prob. 6A Ch. 4 - Prob. 7A Ch. 4 - Prob. 8A Ch. 4 - Prob. 9A Ch. 4 - Prob. 10A Ch. 4 - Prob. 11A Ch. 4 - 12. Keratinization of epithelial cells occurs in...Ch. 4 - Prob. 13A Ch. 4 - Prob. 14A Ch. 4 - Which of the following allows rapid change in one...Ch. 4 - Prob. 16A Ch. 4 - Prob. 1TC Ch. 4 - What accessory structures and tissues are damaged...Ch. 4 - Prob. 3TC Ch. 4 - Prob. 4TC Ch. 4 - Which structures in the dermis will have the...Ch. 4 - Prob. 6TC

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