Human Physiology
15th Edition
ISBN: 9781259864629
Author: Fox, Stuart Ira
Publisher: Mcgraw-hill Education,
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 8, Problem 6RA
Summary Introduction
To determine:
The property of reticular activating system (RAS).
Introduction:
The reticular activating system (RAS) is an ascending arousal system extending from the pons to the midbrain. Different neural tracts of this system are responsible for promoting the arousal by the release of acetylcholine, various monoamine neurotransmitters, and a polypeptide neurotransmitter.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Which of the following statements most accurately defines what "association cortex" is?
a.
It includes the areas of the brain that lie underneath the cortex
b.
It is all areas of cerebral cortex that are not primary motor or sensory areas
c.
It is the cortex of the cerebellum
d.
It describes the areas of the brain that are responsible for learning and memory
e.
It is all primary motor and sensory areas of cerebral cortex
Sensory neurons transmit information towards the central nervous system.
Which of the following is true concerning the movement of peripheral-
information towards the central nervous system?
A. Dendrites of the sensory neurons synapse with interneurons of the
spinal cord.
B. Axons of the sensory neurons synapse with motor neurons of the muscles
involved in the spinal reflex.
C. Axons of the motor neurons synapse with the interneurons of the spinal cord.
D. Axons of the sensory neurons synapse with the interneurons of the spinal
cord.
Which of the following statements about cerebral white matter is false? a. Commissural fibers connect the right and left cerebral hemispheres. b. Projection fibers connect the cerebral cortex of one hemisphere with structures in the other hemisphere. c. The corpus callosum is the largest bundle of white matter in the brain. d. Association fibers connect the gyri of the cerebral cortex with one another
Chapter 8 Solutions
Human Physiology
Ch. 8 - Prob. 1CPCh. 8 - Describe the embryonic origin of the brain...Ch. 8 - Prob. 3aCPCh. 8 - Describe the locations and functions of the basal...Ch. 8 - Prob. 4aCPCh. 8 - Prob. 4bCPCh. 8 - Prob. 5CPCh. 8 - Prob. 6CPCh. 8 - Prob. 7aCPCh. 8 - Prob. 7bCP
Ch. 8 - Prob. 8aCPCh. 8 - Prob. 8bCPCh. 8 - Prob. 9CPCh. 8 - Prob. 10CPCh. 8 - Prob. 11aCPCh. 8 - List the tracts of the extrapyramidal system and...Ch. 8 - Prob. 12aCPCh. 8 - Prob. 12bCPCh. 8 - Prob. 1RACh. 8 - Prob. 2RACh. 8 - Prob. 3RACh. 8 - Prob. 4RACh. 8 - Prob. 5RACh. 8 - Prob. 6RACh. 8 - Prob. 7RACh. 8 - Prob. 8RACh. 8 - Prob. 9RACh. 8 - Prob. 10RACh. 8 - Prob. 11RACh. 8 - Prob. 12RACh. 8 - Prob. 13RACh. 8 - Prob. 14RACh. 8 - Prob. 15RACh. 8 - Prob. 16RACh. 8 - Prob. 17RACh. 8 - The thalamus has been described as a...Ch. 8 - Prob. 19RACh. 8 - Prob. 20RACh. 8 - Prob. 21RACh. 8 - Prob. 22RACh. 8 - Prob. 23RACh. 8 - Prob. 24RACh. 8 - State two reasons why researchers distinguish...Ch. 8 - Describe evidence showing that the hippocampus is...Ch. 8 - Prob. 27RACh. 8 - Prob. 28RACh. 8 - Prob. 29RACh. 8 - Recent studies suggest that medial temporal lobe...Ch. 8 - Much has been made (particularly by left-handers)...Ch. 8 - Prob. 32RACh. 8 - Prob. 33RACh. 8 - Neurologists have noticed that patients with...Ch. 8 - Prob. 35RACh. 8 - Prob. 36RACh. 8 - Table 7.3 (chapter 7) provides the axon diameters...Ch. 8 - Prob. 38RACh. 8 - Prob. 39RACh. 8 - Table 7.3 (chapter 7) provides the axon diameters...
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 does the neuron composition of the dorsal root ganglion tell you about sensory coding in the somatosensory system? a. The large axon sizes have a slower conduction velocity than small axon sizes. b. The uniform axon sizes for all neurons indicate that they have the same conduction velocity. c. Multiple modalities or sensations can be detected from the skin. d. Only a single modality or sensation can be detected from the skin. e. Processing must occur directly in the skin since the neurons in the dorsal root ganglion are second order neurons.arrow_forward15) The structure that relays sensory information to the cerebral cortex is thea. pons.b. cerebellum.c. hypothalamus. d. thalamus. 16) Which one of the following is NOT a function of the cerebellum?a. Maintains balance.b. Helps produce smooth, coordinated movements.c. Helps maintain normal posture.d. Associates sensations with emotions.arrow_forwardAll of the following are true regarding the descending motor tracts EXCEPT which one? A. They originate in either the cerebral cortex or brainstem. B. The pathways are generally made of a two-neuron system. C. The upper motor neuron fibers target lower motor neurons of the spinal cord or cranial nerves. D. They are involved in assisting with voluntary movement.arrow_forward
- Emergency room doctors often shine a light into the eyes of patients with head injuries to test their pupillary reflex. The structure that relays the information between the optic nerve and the motor neuron, and the division of the nervous system that the structure is part of , respectively are: Select one: a. an interneuron and the peripheral nervous system b. the occipital lobe and the peripheral nervous system c. the occipital lobe and the central nervous system d. an interneuron and the central nervous systemarrow_forwardThe subdivision of the brain that does not initiate somatic motor movements, but rather coordinates and fine-tunes those movements, is the a. medulla oblongata. b. cerebrum. c. cerebellum. d. diencephalon.arrow_forward38) Which of the following ions cause vesicles in the axon endings to release a neurotransmitter into the synapse?a Sodium.b Potassium.c Chloride.d Calcium. 39) Damage to the hippocampus is most likely to impair a. memory.b. balance. c. sIeep.d. breathing.arrow_forward
- Tertiary neurons in both the spinothalamic tract and the dorsal-column/medial-lemniscal systema. project to the somatosensory cortex.b. cross to the opposite side in the medulla oblongata.c. are found in the spinal cord.d. connect to quaternary neurons in the thalamus.e. are part of a descending pathwayarrow_forwardThe multipolar neurones are observed in the gray matter of the histological specimen of the cerebellum cross-section. According to what morphological feature does these cells attribute to multipolar? a. Size of the cells b. Shape of the terminal axon extension c. Length of the processes d. Quantity of the processes e. Shape of the perikaryonarrow_forwardWhat neural system is primarily activated when a book is dropped into your outstretched hands with your eyes open? a. Feedback processing controlled by lower motor neurons in the spinal cord. b. None of the answers. c. Modulation of onset responses controlled by the basal ganglia. d. Motor coordination controlled by the cerebellum. e. Feedforward processing controlled by upper motor neurons in the brainstem.arrow_forward
- The major relay station for sensory input that projects to the cerebralcortex is thea. hypothalamus. d. cerebellum.b. thalamus. e. midbrain.c. ponsarrow_forwardWhich of the following is correct? tertiary neurons found by:- a. extending between the posterior horn and anterior horn b. extending between the posterior horn and the brainstem c. extending between the thalamus and the primary somatosensory cortex d. extending between the primary motor cortex and brainstemarrow_forwardA structure or cell that collects sensory information is aa. motor neuron.b. receptor.c. neurolemmocyte.d. ganglion.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSON
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Anatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
12 Organ Systems | Roles & functions | Easy science lesson; Author: Learn Easy Science;https://www.youtube.com/watch?v=cQIU0yJ8RBg;License: Standard youtube license