Textbook Question
What structure forms cerebrospinal fluid? How does this occur?
Ch. 12 The Central Nervous System
Amerman2nd EditionHuman Anatomy & PhysiologyISBN: 9780136873822
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Table of contents
- Ch. 1 Introduction to Anatomy and Physiology26
- Ch. 2 The Chemistry of Life38
- Ch. 3 The Cell55
- Ch. 4 Histology47
- Ch. 5 The Integumentary System30
- Ch. 6 Bones and Bone Tissue36
- Ch. 7 The Skeletal System40
- Ch. 8 Articulations19
- Ch. 9 The Muscular System36
- Ch. 10 Muscle Tissue and Physiology29
- Ch. 11 Introduction to the Nervous System and Nervous Tissue28
- Ch. 12 The Central Nervous System42
- 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 Heart30
- Ch. 18 The Cardiovascular System II: The Blood Vessels43
- Ch. 19 Blood32
- Ch. 20 The Lymphatic System and Immunity45
- 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
Chapter 12, Problem 11b
Mark the following statements about the spinal cord as true or false. If a statement is false, correct it to make a true statement.
The spinal cord extends from the foramen magnum to the level between the first and second lumbar vertebrae.
Verified step by step guidance1
Step 1: Understand the anatomy of the spinal cord. The spinal cord is a cylindrical structure that extends from the brainstem (specifically the medulla oblongata) through the foramen magnum, which is the large opening at the base of the skull.
Step 2: Identify the endpoint of the spinal cord. The spinal cord typically terminates at the level of the first or second lumbar vertebra (L1-L2) in adults, forming a structure called the conus medullaris.
Step 3: Evaluate the statement provided. The statement says, 'The spinal cord extends from the foramen magnum to the level between the first and second lumbar vertebrae.' This matches the anatomical description of the spinal cord's extent.
Step 4: Determine whether the statement is true or false. Since the statement accurately describes the anatomical range of the spinal cord, it is true.
Step 5: If the statement were false, you would need to correct it by specifying the accurate anatomical range of the spinal cord, but in this case, no correction is necessary as the statement is true.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Anatomy of the Spinal Cord
The spinal cord is a cylindrical structure that extends from the base of the brain (foramen magnum) down to the lower back, typically ending at the level of the first or second lumbar vertebra (L1-L2) in adults. This anatomical knowledge is crucial for understanding the organization and function of the central nervous system.
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Vertebral Column
The vertebral column, or spine, is made up of individual vertebrae that protect the spinal cord and provide structural support. It consists of cervical, thoracic, lumbar, sacral, and coccygeal regions, with the lumbar region being particularly important for lower back function and mobility.
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Spinal Cord Segmentation
The spinal cord is segmented into regions that correspond to the vertebrae: cervical, thoracic, lumbar, sacral, and coccygeal. Each segment gives rise to spinal nerves that innervate specific body areas, making it essential to understand these segments for diagnosing and treating neurological conditions.
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Related Practice
Textbook Question
Mark the following statements on the role of the brain in movement as true or false. If a statement is false, correct it to make a true statement.
The dopaminergic neurons of the substantia nigra enhance the actions of the caudate nucleus and putamen.
Textbook Question
Explain the importance of the blood brain barrier, and list the structures that form it.
Textbook Question
Mark the following statements about the spinal cord as true or false. If a statement is false, correct it to make a true statement.
The epidural space around the spinal cord is only a potential space.
Textbook Question
Mark the following statements about the spinal cord as true or false. If a statement is false, correct it to make a true statement.
The posterior horn of spinal gray matter contains the cell bodies of motor neurons.
Textbook Question
Mark the following statements about the spinal cord as true or false. If a statement is false, correct it to make a true statement.
The spinal cord functions as a relay and processing station.