Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 49, Problem 8TYK
The white matter of the spinal cord is composed of
- a. the ventricles.
- b. myelinated sheaths of axons.
- c. cerebrospinal fluid.
- d. motor and interneuron cell bodies.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
In adults, the spinal cord is not the same length as the vertebral canal, and most of the lumbar part of the spinal cord is within
A. the coccyx.
B. the sacrum.
C. the cervical vertebrae.
D. the thoracic vertebrae.
E. the cauda equina.
Describe the spinal cord according to:
A. location
B. shape and length
C. vertebral levels of upper and lower extremities
D. distribution of gray and white matter
E. anatomical enlargements
F. features at distal end
G. attachment of spinal nerves
Each of the following is true of the spinal cord, except: it ______________.
a.carries sensory input
b.carries motor output
c.contains dorsal horns
d.contains a central sulcus
e.major reflex center
Chapter 49 Solutions
Study Guide for Campbell Biology
Ch. 49 - The organization of an organisms nervous system...Ch. 49 - Prob. 2IQCh. 49 - Prob. 3IQCh. 49 - Identify the structures (a-g) in the following...Ch. 49 - Prob. 5IQCh. 49 - Action potentials are initiated more readily in...Ch. 49 - Prob. 1SYKCh. 49 - Prob. 1TYKCh. 49 - Prob. 2TYKCh. 49 - Prob. 3TYK
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- What are the main functions of the spinal cord?arrow_forwardThe thoracic spinal cord has the smallest dorsal horn area because: a. the trunk is the most innervated area of the body and therefore there are more projections into the dorsal horn there. b. the trunk is the least innervated area of the body and therefore there are fewer projections into the dorsal horn there. c. most of the descending upper motor neurons have already entered the ventral horn. d. There are many motor neurons to control the small muscles around the spine.arrow_forwardSelect the statement that best describes the local circuitry of the spinal cord. a. There is no local circuitry within the spinal cord. b. Local circuits enable the same neurons to innervate both distal and proximal muscles. c. Neurons that innervate distal muscles are interconnected across the midline. d. None of the answers. e. Neurons that innervate proximal muscles are interconnected through many spiral cord segments.arrow_forward
- In the spinal cord, the somas of the lower motor neurons are found ina. the cauda equina.b. the posterior horns.c. the anterior horns.d. the posterior root ganglia.e. the fasciculiarrow_forwardList the two main functions of the spinal cord.arrow_forwardWhich of the following apply to the spinal cord?arrow_forward
- The vertebral canal is occupied by a bundle of spinal nerve roots called a. the terminal filum. b.Below L2 the descending tracts. c. the gracile fasciculus. d. the medullary cone. e. the cauda equina.arrow_forwardDescribe the structure and function of the meningeal membranes that enclose the spinal cordarrow_forwardAll of the following are functions of the spinal cord except A) mediates quick and involuntary response to a stimuli B) helps maintain posture and equilibrium during locomotion C) receives sensory input and sends motor signals through spinal nerves D) the only control center for parasympathetic nervous systemarrow_forward
- What is the function of the dorsal roots of the spinal cord?A. They receive sensory input.B. They control motor output.C. They convey information from the brain to the spinal cord.D. They convey information from the spinal cord to the brain.arrow_forwardDescribe the structure and function of the spinal cord.arrow_forwardList the functions of the spinal cord.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Nervous System - Get to know our nervous system a bit closer, how does it works? | Neurology; Author: FreeMedEducation;https://www.youtube.com/watch?v=6O-0CVAgaEM;License: Standard youtube license