Human Anatomy & Physiology
1st Edition
ISBN: 9780805382952
Author: Erin C. Amerman
Publisher: PEARSON
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Textbook Question
Chapter 12, Problem 11CYR
Mark the following statements about the spinal cord as true or false. If a statement is false, correct it to make a true statement.
a. The spinal cord functions as a relay and processing station.
b. The spinal cord extends from the foramen magnum to the level between the first and second lumbar vertebrae.
c. The epidural space around the spinal cord is only a potential space.
d. The posterior horn of spinal gray matter contains the cell bodies of motor neurons.
e. The corticospinal tracts are the main sensory tracts in the spinal cord.
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Which of the following does not describe the spinal nerves?
A.They are created through a combination of dorsal and ventral roots.
B. They exit the vertebral column through intervertebral spaces.
C. Some are made up of only sensory fibers, while others are made up of motor fibers.
D. There are thirty-one spinal nerves. They are named based on where they exit the vertebral column.
Select 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.
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
Chapter 12 Solutions
Human Anatomy & Physiology
Ch. 12.1 - What types of functions are performed by the CNS?Ch. 12.1 - Prob. 2QCCh. 12.1 - Prob. 3QCCh. 12.1 - 4. What is the neural tube?
Ch. 12.1 - Prob. 5QCCh. 12.2 - Prob. 1QCCh. 12.2 - Prob. 2QCCh. 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. 6QCCh. 12.2 - Prob. 7QCCh. 12.2 - What are the general functions of the reticular...Ch. 12.3 - 1. What are the three meninges, from superficial...Ch. 12.3 - 2. What are the three spaces (potential and...Ch. 12.3 - Prob. 3QCCh. 12.3 - Prob. 4QCCh. 12.3 - 5. What two factors create the blood brain...Ch. 12.3 - Prob. 6QCCh. 12.4 - Prob. 1QCCh. 12.4 - List and describe the three spinal meninges.Ch. 12.4 - Prob. 3QCCh. 12.4 - Prob. 4QCCh. 12.4 - What is the cauda equina?Ch. 12.4 - Prob. 6QCCh. 12.4 - Prob. 7QCCh. 12.4 - Prob. 8QCCh. 12.5 - 1. Where are the posterior columns and their two...Ch. 12.5 - Prob. 2QCCh. 12.5 - How are touch and pain processed by the cerebral...Ch. 12.5 - 4. How is the processing of olfactory stimuli...Ch. 12.6 - What is the main difference between the...Ch. 12.6 - Where do the fibers of the corticospinal tracts...Ch. 12.6 - Where do upper motor neurons reside, and what are...Ch. 12.6 - What are the two parts of the basal nuclei...Ch. 12.6 - What is the overall function of the cerebellum?Ch. 12.6 - Trace the overall voluntary movement pathway from...Ch. 12.7 - Which two body systems coordinate the maintenance...Ch. 12.7 - Which branch of the PNS controls most of the bodys...Ch. 12.7 - Prob. 3QCCh. 12.7 - Prob. 4QCCh. 12.7 - Prob. 5QCCh. 12.7 - What type of rhythm does human sleep follow?...Ch. 12.7 - 7. What is an electroencephalogram? What is the...Ch. 12.8 - 1. What is cognition? Which part of the brain is...Ch. 12.8 - What is cerebral lateralization? Which functions...Ch. 12.8 - 3. Define language in the context of neurology....Ch. 12.8 - Explain the differences between declarative memory...Ch. 12.8 - 5. How do immediate, short-term, and long-term...Ch. 12.8 - Prob. 6QCCh. 12 - The central nervous system is responsible for: a....Ch. 12 - Mark the following statements about the brain as...Ch. 12 - Prob. 3CYRCh. 12 - 4. Which statement about cerebral white matter is...Ch. 12 - Mark the following statements about the cerebral...Ch. 12 - Prob. 6CYRCh. 12 - 7. Match the term on the left with its correct...Ch. 12 - Which statement about the cranial meninges is...Ch. 12 - Prob. 9CYRCh. 12 - Prob. 10CYRCh. 12 - Mark the following statements about the spinal...Ch. 12 - Which of the following somatic sensations is not...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 - 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. 24CYRCh. 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. 2AYKCh. 12 - Prob. 3AYKCh. 12 - A new diet wonder drug is designed to block the...Ch. 12 - Prob. 5AYK
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- Which of the following describes the ascending tracts and the descending tracts of the spinal cord? A. The ascending tracts contain motor impulses, and the descending tracts contain sensory information.B. Both the ascending and descending tracts contain sensory information.C. The ascending tracts contain sensory information, and the descending tracts contain the motor impulses.D. Both the ascending and descending tracts contain motor impulses.arrow_forwardThe anterior root of a spinal nerve containsa. axons of both motor and sensory neurons.b. axons of sensory neurons only.c. interneurons.d. axons of motor neurons only.arrow_forwardA typical spinal nerve: Select one: is protected by the dura, arachnoid and pia mater b. normally divides into four branches that will supply the thoracic region, the abdominal region, the pelvic region and the limbs C. contains one nerve fibre and it's myelin sheath d. is covered by the connective tissue called endomysium e. attaches to the spinal cord via the dorsal and ventral roots O a.arrow_forward
- 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 centerarrow_forwardIn 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.arrow_forwardThe white matter of the spinal cord is composed primarily ofa. unmyelinated axons.b. neurolemmocytes and satellite cells.c. myelinated axons.d. cell bodies of neuronsarrow_forward
- The 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_forwardThe _______ serve the skin and musculature of the posterior body trunk at their emergence from the spinal cord; while the ventral rami of spinal nerves pass anteriorly as the __________ to supply the muscles of intercostal spaces, and the skin and muscles of the anterior and lateral trunk. A. dorsal rami, ventral rami B. dorsal rami, intercostal nerves C. dorsal root, ventral root D. nerve plexues, spinal nerves The white matter of spinal cord is bisected by fissures: the more open ventral fissure is called the ventral _____________ and the dorsal one is the shallow dorsal ______________. A. funiculus, horn B. median fissure, median sulcus C. median sulcus, median fissure D. horn, funiculus n gray matter of spinal cord, the central butterfly shaped region, contains dorsal and anterior _____; on both lateral side of the spinal cord, there are the dorsal and ventral ______ for interneurons and sensory fibers that…arrow_forwardDamage to the surface tissue of the spinal cord will most likely affecta. information processing within the spinal cord.b. the stimulation of sensory organs.c. communication between the peripheral nervous system and the brain.d. reflex arcs.arrow_forward
- The spinal cord serves many important functions for the nervous system, which of the following is not one of them? Group of answer choices a. To protect neurons on route to their destinations b. To carry out a reflex, such as quickly moving your foot away as you step on a sharp object. c. To carry sensory signals up to the brain d. To carry motor signals from the brain to the skeletal muscles e. To coordinate all the muscle groups associated with locomotionarrow_forwardA collection of spinal nerves that join together after leaving the spinalcord is called aa. ganglion. c. projection nerve.b. nucleus. d. plexus.arrow_forwardAs with most spinal nerves, the sacral spinal nerves become part of a nerve plexus, the sacral plexus. What is a nerve plexus? dermatome maps explain sensory supply, and this patient did not have any motor problems. So which root(s) of nerves were affected, dorsal or ventral? Explain your answer.arrow_forward
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The Sensorimotor System and Human Reflexes; Author: Professor Dave Explains;https://www.youtube.com/watch?v=M0PEXquyhA4;License: Standard youtube license