Explanation The major descending tracts of spinal white matter are as follows: 1. Corticospinal tracts: These are the largest of all the descending tracts. They regulate the movement of skeletal muscles below the head and neck. They arise from the motor areas of the cerebral cortex, and their axons descend as a part of the internal capsule. Then they pass through the brainstem, where they decussate. The major function of corticospinal tract is to bring stimuli to specific places of the anterior horn of the spinal cord. 2. Reticulospinal tracts: These tracts originate from the pons and medulla regions. They carry information (motor stimuli) from the brainstem. The main function of the reticulospinal tract is to maintain posture...

Human Anatomy & Physiology (2nd Edition)

2nd Edition

ISBN: 9780134553511

Author: Erin C. Amerman

Publisher: PEARSON

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Question

Chapter 12.6, Problem 8QC

Summary Introduction

To review:

The major descending tracts of the spinal white matter and their functions.

Introduction:

The main function of the spinal cord is to relay and process information. This function is performed with the help of the white matter, which surrounds the grey matter. The white matter is organized into various regions that are called funiculus. The funiculus of white matter has several ascending and descending tracts. The descending tracts bring the stimuli from a specific part of the brain to a particular body part.

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Chapter 12.6, Problem 7QC

Chapter 12.7, Problem 1QC

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Chapter 12 Solutions

Human Anatomy & Physiology (2nd Edition)

Ch. 12.1 - What types of functions are performed by the CNS?Ch. 12.1 - Prob. 2QC Ch. 12.1 - Prob. 3QC Ch. 12.1 - 4. What is the neural tube? Ch. 12.1 - Prob. 5QC Ch. 12.2 - Prob. 1QC Ch. 12.2 - Prob. 2QC Ch. 12.2 - Which component of the diencephalon performs each...Ch. 12.2 - Describe the basic anatomical arrangement of the...Ch. 12.2 - What is the primary function of the cerebellum?

Ch. 12.2 - Prob. 6QC Ch. 12.2 - Prob. 7QC Ch. 12.2 - What are the general functions of the reticular...Ch. 12.3 - Which two body systems coordinate the maintenance...Ch. 12.3 - Which branch of the PNS controls most of the bodys...Ch. 12.3 - Prob. 3QC Ch. 12.3 - Prob. 4QC Ch. 12.3 - Prob. 5QC Ch. 12.3 - What type of rhythm does human sleep follow?...Ch. 12.3 - 7. What is an electroencephalogram? What is the...Ch. 12.4 - 1. What is cognition? Which part of the brain is...Ch. 12.4 - What is cerebral lateralization? Which functions...Ch. 12.4 - 3. Define language in the context of neurology....Ch. 12.4 - Explain the differences between declarative memory...Ch. 12.4 - 5. How do immediate, short-term, and long-term...Ch. 12.4 - Prob. 6QC Ch. 12.5 - 1. What are the three meninges, from superficial...Ch. 12.5 - 2. What are the three spaces (potential and...Ch. 12.5 - Prob. 3QC Ch. 12.5 - Prob. 4QC Ch. 12.5 - 5. What two factors create the blood brain...Ch. 12.5 - Prob. 6QC Ch. 12.6 - Prob. 1QC Ch. 12.6 - List and describe the three spinal meninges.Ch. 12.6 - Prob. 3QC Ch. 12.6 - Prob. 4QC Ch. 12.6 - What is the cauda equina?Ch. 12.6 - Prob. 6QC Ch. 12.6 - Prob. 7QC Ch. 12.6 - Prob. 8QC Ch. 12.7 - 1. Where are the posterior columns and their two...Ch. 12.7 - Prob. 2QC Ch. 12.7 - How are touch and pain processed by the cerebral...Ch. 12.7 - 4. How is the processing of olfactory stimuli...Ch. 12.8 - What is the main difference between the...Ch. 12.8 - Where do the fibers of the corticospinal tracts...Ch. 12.8 - Where do upper motor neurons reside, and what are...Ch. 12.8 - What are the two parts of the basal nuclei...Ch. 12.8 - What is the overall function of the cerebellum?Ch. 12.8 - Trace the overall voluntary movement pathway from...Ch. 12 - The central nervous system is responsible for: a....Ch. 12 - Mark the following statements about the brain as...Ch. 12 - 3. Which of the following is not one of the basal...Ch. 12 - 4. Which statement about cerebral white matter is...Ch. 12 - Mark the following statements about the cerebral...Ch. 12 - The central sulcus separates the: a. parietal and...Ch. 12 - 7. Match the term on the left with its correct...Ch. 12 - Which statement about the cranial meninges is...Ch. 12 - Prob. 9CYR Ch. 12 - Prob. 10CYR Ch. 12 - Mark the following statements about the spinal...Ch. 12 - Fill in the blanks: The tracts of the posterior...Ch. 12 - Which parts of the body have the greatest amount...Ch. 12 - Which of the following statements is false? a. The...Ch. 12 - Fill in the blanks: The cell bodies of upper motor...Ch. 12 - Label the following components of the...Ch. 12 - Mark the following statements on the role of the...Ch. 12 - Which of the following somatic sensations is not...Ch. 12 - 19. Fill in the blanks: The two components of the...Ch. 12 - 20. Which of the following statements is false? a....Ch. 12 - 21. Match the term on the left with its correct...Ch. 12 - 22. The part of the brain responsible for the...Ch. 12 - Fill in the blanks: Declarative memories are...Ch. 12 - Prob. 24CYR Ch. 12 - Huntingtons disease is characterized by a loss of...Ch. 12 - How could you tell the difference between an...Ch. 12 - Why do injuries to the hippocampus interfere with...Ch. 12 - Ms. Norris is brought to the emergency department...Ch. 12 - Prob. 2AYKA Ch. 12 - Prob. 3AYKA Ch. 12 - A new diet wonder drug is designed to block the...Ch. 12 - Prob. 5AYKB

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