Textbook Question
A spinal nerve divides into a(n)_____ that serves the anterior side of the body and the limbs and a(n)_____that serves the posterior side of the body.
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Ch. 13 The Peripheral Nervous System
Amerman3rd EditionHuman Anatomy & PhysiologyISBN: 9780138247201, 9780138247928, 9780138201814
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Table of contents
- Ch. 1 Introduction to Anatomy and Physiology24
- Ch. 2 The Chemistry of Life37
- Ch. 3 The Cell54
- Ch. 4 Histology46
- Ch. 5 The Integumentary System30
- Ch. 6 Bones and Bone Tissue36
- Ch. 7 The Skeletal System40
- Ch. 8 Articulations19
- Ch. 9 The Muscular System35
- Ch. 10 Muscle Tissue and Physiology29
- Ch. 11 Introduction to the Nervous System and Nervous Tissue28
- Ch. 12 The Central Nervous System41
- Ch. 13 The Peripheral Nervous System41
- Ch. 14 The Autonomic Nervous System and Homeostasis31
- Ch. 15 The Special Senses39
- Ch. 16 The Endocrine System42
- Ch. 17 The Cardiovascular System I: The Heart28
- Ch. 18 The Cardiovascular System II: The Blood Vessels43
- Ch. 19 Blood32
- Ch. 20 The Lymphatic System and Immunity41
- Ch. 21 The Respiratory System27
- Ch. 22 The Digestive System27
- Ch. 23 Metabolism and Nutrition7
- Ch. 24 The Urinary System39
- Ch. 25 Fluid, Electrolyte, and Acid-Base Homeostasis39
- Ch. 26 The Reproductive System10
- Ch. 27 Development and Heredity5
Amerman3rd EditionHuman Anatomy & PhysiologyISBN: 9780138247201, 9780138247928, 9780138201814Not the one you use?Change textbook
Chapter 13, Problem 1d
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
d. The term nerve is the equivalent of the term neuron.
Verified step by step guidance1
Step 1: Understand the terms 'nerve' and 'neuron'. A 'nerve' is a bundle of axons (nerve fibers) in the peripheral nervous system, surrounded by connective tissue. A 'neuron' is a single nerve cell, which includes the cell body, dendrites, and axon.
Step 2: Analyze the statement: 'The term nerve is the equivalent of the term neuron.' This implies that the two terms are interchangeable, which is incorrect based on their definitions.
Step 3: Determine the correct relationship between the terms. A nerve is composed of many neurons' axons, but it is not equivalent to a single neuron.
Step 4: Correct the false statement. The corrected statement should read: 'The term nerve is not equivalent to the term neuron. A nerve is a bundle of axons from multiple neurons in the peripheral nervous system.'
Step 5: Review the corrected statement to ensure clarity and accuracy, emphasizing the distinction between the structural and functional roles of nerves and neurons.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Nerve vs. Neuron
A nerve is a bundle of axons from multiple neurons, encased in connective tissue, that transmits signals between the central nervous system and the rest of the body. In contrast, a neuron is a single nerve cell that is responsible for transmitting information through electrical and chemical signals. Thus, the statement is false because a nerve comprises many neurons, not just one.
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Structure of the Nervous System
The nervous system is divided into the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS includes the brain and spinal cord, while the PNS consists of all the nerves that branch out from the CNS to the rest of the body. Understanding this structure is essential for distinguishing between individual neurons and the larger nerve structures they form.
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Function of Neurons
Neurons are specialized cells that transmit information throughout the body via electrical impulses and neurotransmitter release. They play a critical role in processing and communicating signals, enabling functions such as reflexes, sensory perception, and motor control. Recognizing the function of neurons helps clarify their role within nerves and the broader nervous system.
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Related Practice
Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
a. The somatic sensory division of the PNS detects sensory stimuli from the organs in the thoracic and abdominopelvic cavities.
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Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
b. The somatic motor division of the PNS consists of lower motor neurons that directly innervate skeletal muscle fibers.
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Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
e. There are 31 pairs of spinal nerves and 12 pairs of cranial nerves.
Textbook Question
Devise a series of physical examination tests that assess the function of each of the cranial nerves.
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