Human Anatomy
9th Edition
ISBN: 9780135168059
Author: Marieb, Elaine Nicpon, Brady, Patricia, Mallatt, Jon
Publisher: Pearson Education, Inc.,
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Textbook Question
Chapter 13, Problem 27CYU
Of the sensory pathways described, which pass through the thalamus? Which pathway does not?
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List two functions of the thalamus?
The thalamus has been described as a “switchboard.” Explain why, by describing the pathway of somatic sensory information from the receptors to the cerebral cortex.
Case Study:
Princess Leia has asthma, and had to use her inhaler before taking her physiology exam. Later, in the physiology laboratory, she measured her pulse rate and blood pressure and found them to be higher than usual. The following week, after administering some drugs (epinephrine, atropine) she later developed a severe headache and dry mouth. When she looked in the mirror she noticed that her pupils were dilated.
The thalamus has been described as a “switchboard.” Explain why, by describing the pathway of somatic sensory information from the receptors to the cerebral cortex.
Chapter 13 Solutions
Human Anatomy
Ch. 13 - Prob. 1CYUCh. 13 - Prob. 2CYUCh. 13 - Name the structure that connects the third...Ch. 13 - Prob. 4CYUCh. 13 - In which part of the brain stem are each of the...Ch. 13 - What are the corpora quadrigemina?Ch. 13 - Name the structure that connects the two...Ch. 13 - What type of sensory information does the...Ch. 13 - Name the three white fiber tracts that connect the...Ch. 13 - Prob. 10CYU
Ch. 13 - What part of the diencephalon functions as the...Ch. 13 - What is the difference in function between a...Ch. 13 - Which functional area of the cerebral cortex plans...Ch. 13 - Define contralateral projection.Ch. 13 - What deficits may result from injury to the...Ch. 13 - Prob. 16CYUCh. 13 - Where is the caudate nucleus located in reference...Ch. 13 - From where do the reticular nuclei receive input?...Ch. 13 - What emotional response does the amygdaloid body...Ch. 13 - Name the dura mater extension that lies in the...Ch. 13 - Where is cerebrospinal fluid produced? How is it...Ch. 13 - What neural structures pass through the vertebraI...Ch. 13 - Which portion of the spinal cord, gray matter or...Ch. 13 - Prob. 24CYUCh. 13 - Which two meninges border the space that is filled...Ch. 13 - Which sensory pathway carries discriminative touch...Ch. 13 - Of the sensory pathways described, which pass...Ch. 13 - Which descending fiber tract originates from the...Ch. 13 - Which of the pathways illustrated here (ascending...Ch. 13 - Individuals who have suffered a stroke generally...Ch. 13 - Prob. 31CYUCh. 13 - Choose the correct brain structure from the key...Ch. 13 - A patient suffered a cerebral hemorrhage that...Ch. 13 - Destruction of the ventral horn cells of the...Ch. 13 - For each of the following brain structures, write...Ch. 13 - Which of the following areas is most likely to...Ch. 13 - Kimberly learned that the basic design of the CNS...Ch. 13 - When Ralph had brain surgery to remove a small...Ch. 13 - When their second child was born, Kiko and Taka...Ch. 13 - Cesar, a brilliant computer analyst, was hit on...Ch. 13 - One war veteran was tetraplegic, and another was...Ch. 13 - Every time Spike went to a boxing match, he...Ch. 13 - A spinal cord injury at C2 results not only in...Ch. 13 - What parts of the brain are still developing...Ch. 13 - Strokes, tumors, or wounds can destroy limited...
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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 functional properties of area CA1 and CA3 in the hippocampus?arrow_forward(a) In the spinothalamic pathway, where are the cell bodies of the first-order neurons located? Of the third-order neurons? (b) Trace the descending pathway that is concerned with skilled voluntary movements.arrow_forwardThe thalamus acts as a relay point for all but what type of sensory information?arrow_forward
- What is the role of the thalamus in sensory function?arrow_forwardThe striations seen within the different structures of the basal ganglia are due to the presence of what neuronal structure?arrow_forwardVoschin sustained major head trauma in an automobile accident. She is unresponsive to sensory stimuli, and scans of her cerebral cortex demonstrate no cortical activity. During a surgical procedure to relieve pressure on her brain, it is discovered that she has sustained major damage to her thalamus. How does the damage to her thalamus explain her symptoms?arrow_forward
- Based on the attached figure (Fig. 18.7B in the textbook), what would an increase in activation of D1 receptor-expressing spiny neurons in the striatum cause in downstream basal ganglia structures? Direct and indirect pathways Substantia D1 nigra pars D2 compacta (transient) Frontal cortex Cerebral cortex (transient) + (transient) + (transient) Caudate/putamen VA/VL complex of thalamus (transient) (transient) Globus pallidus, Globus pallidus, external segment internal segment 0 (tonic) (tonic) + (transient) Subthalamic nucleus OA. decreased activity in the globus pallidus external segment (GPe B. decreased activity in the cortex C. increased activity in the subthalamic nucleus (STN) D. decreased activity in the thalamus E. decreased activity in the globus pallidus internal segment (GPI) Parafascicular nucleusarrow_forwardWhy is the thalamus called the “gateway to the cerebral cortex”?arrow_forwardWhy do the anatomical inputs to the cerebellum suggest that it can compare motor commands and sensory feedback?arrow_forward
- Is it true that the ventral root ganglia comprise cell bodies of sensory neurons?arrow_forwardGiven the following events:(1) Action potentials from the cerebellum go to the motor cortex andspinal cord.(2) Action potentials from the motor cortex go to lower motor neuronsand the cerebellum.(3) Action potentials from proprioceptors go to the cerebellum.Arrange the events in the order they occur in the cerebellar comparatorfunction.a. 1,2,3 b. 1,3,2 c. 2,1,3 d. 2,3,1 e. 3,2,1arrow_forwardWhat is the significance of some ganglionic axons crossing to the opposite side of the brain?arrow_forward
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