Human Anatomy (9th Edition)
9th Edition
ISBN: 9780134320762
Author: Frederic H. Martini, Robert B. Tallitsch, Judi L. Nath
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 15, Problem 13RFT
Summary Introduction
Introduction:
The corticospinal tracts are composed of the motor neurons, which includes the anterior corticospinal, lateral corticospinal, and corticobulbar tracts. They are also referred to as the pyramidal tracts. They form the descending tracts and control motor movements of the lower and upper limbs in the body.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Which of the following parts of a neuron occupies the gray matter in the spinal cord? (a) tracts of long axons, (b) motor neuron cell bodies, (c) sensory neuron cell bodies, (d) nerves.
Which one of the following contains only motor fibers? (a) dorsal root, (b) dorsal ramus, (c) ventral root, (d) ventral ramus.
All the motor neurons that control skeletal muscles are, (a) multipolar neurons. (b) myelinated bipolar neurons. (c) unipolar, unmyelinated sensory neurons. (d) proprioceptors.
Chapter 15 Solutions
Human Anatomy (9th Edition)
Ch. 15 - Match each numbered item with the most closely...Ch. 15 - Prob. 2RFTCh. 15 - Match each numbered item with the most closely...Ch. 15 - Prob. 4RFTCh. 15 - Prob. 5RFTCh. 15 - Match each numbered item with the most closely...Ch. 15 - Prob. 7RFTCh. 15 - Prob. 8RFTCh. 15 - Match each numbered item with the most closely...Ch. 15 - Prob. 10RFT
Ch. 15 - Prob. 11RFTCh. 15 - Which of the following are spinal tracts within...Ch. 15 - Prob. 13RFTCh. 15 - 14. Give the anatomical names of the spinal tracts...Ch. 15 - Prob. 1RCCh. 15 - Prob. 2RCCh. 15 - Why do the proportions of the sensory homunculus...Ch. 15 - Prob. 4RCCh. 15 - 5. Compare the actions directed by motor commands...Ch. 15 - Prob. 1CTCh. 15 - As a result of a snowboarding accident, John is...
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
- Describe the functional problems that would be experienced by a person in which these fiber tracts have been cut: (a) lateral spinothalamic, (b) ventral and dorsal spinocerebellar, (c) tectospinal.arrow_forwardCentral pattern generators (CPGs) are found at the segmental level of motor control. (a) What is the job of the CPGs? (b) What controls them, and where is this control localized?arrow_forwardA ganglion is a collection of (a) neuron cell bodies, (b) axons of motor neurons, (c) interneuron cell bodies, (d) axons of sensory neurons.arrow_forward
- Match the names of the cells in column B with the function they perform, shown in column A.Column A Column B(1) line the central cavity of the brain (a) astrocytes(2) form myelin in the CNS (b) ependymal cells(3) form myelin in the PNS (c) microglial cells(4) remove neurotransmitters in the CNS (d) oligodendrocytes(5) regulate ionic composition of thefluid around neurons in the CNS (e) satellite cells (f) Schwann cells(6) CNS phagocytesarrow_forwardQuestion about anatomyarrow_forwardFill in the blanks below: Sensory neurons carrying information into the spinal cord synapse at the .................. horn. Motor commands exiting the spinal cord are generated in the............... horn. The interneurons that process sensory information and determine the appropriate motor output are found in the.................... matter of the spinal cord. The myelinated axons of the neurons carrying information to and from the brain are found in the .............. matter.arrow_forward
- For each of the following muscles or body regions, identify the plexus and the peripheral nerve (or branch of one) involved. Use one choice from Key A followed by one choice from Key B. Key A: Plexuses Key B: Nerves(a) brachial (1) common fibular (6) phrenic(b) cervical (2) femoral (7) radial(c) lumbar (3) median (8) tibial(d) sacral (4) musculocutaneous (9) ulnar (5) obturatorStructure Innervated__,__ (1) the diaphragm__,__(2) muscles of the posterior compartments of thigh and leg__,__(3) anterior compartment thigh muscles__,__(4) medial compartment thigh muscles__,__(5) anterior arm muscles that flex the forearm__,__(6) muscles that…arrow_forwardWhich nervous system component belongs to its corressponding motor pathway? Nervous System Compnent Motor Pathway Cerebellum A) plan and initiate voluntary movements Spinal Cord B) refine and adjust movements Brainstem C) relay commands to most muscles below the neck Frontal Lobe D) relay commands to muscles of facial expression, eye movement, chewing, and swallowingarrow_forwardImagine you are walking and encounter an unexpected change in ground elevation and you begin to stumble. In order to recover your balance, what components of the nervous systems would be most significantly involved? a.) Cerebrum and corticospinal tracts b.) Primary motor cortex and corticospinal tracts c.) Cerebellum and vestibulospinal tracts d.) Sensory cortex and somatosensory tractsarrow_forward
- For each of the following muscles or body regions, identify the plexus and the peripheral nerve(s) (or branch of one) involved. Use choices from keys A and B.arrow_forwardWhat does the lateral horn of the spinal cord contain? Multiple Choice a) Sensory (afferent) neuron somas b) Interneurons c) Spinothalamic tracts d) Somas of somatic motor neurons e) Neurons of the sympathetic nervous systemarrow_forwardMyelin in the CNS is produced by (a) astrocytes, (b) microglial cells, (c) oligodendrocytes, (d) ependymal cells.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Chapter 7 - Human Movement Science; Author: Dr. Jeff Williams;https://www.youtube.com/watch?v=LlqElkn4PA4;License: Standard youtube license