Human Anatomy (8th Edition)
8th Edition
ISBN: 9780134243818
Author: Elaine N. Marieb, Patricia Brady Wilhelm, Jon B. Mallatt
Publisher: PEARSON
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Textbook Question
Chapter 13, Problem 11RQ
(a) Describe the location of the reticular formation in the brain. (b) What does RAS mean, and what is its function?
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(a) Localize the reticular formation in the brain. (b) What does RAS mean, and what is its function?
Which of the choices below describe the ANS?
A) Sensory and motor neurons that supply the digestive tract
B) Motor fibers that conduct nerve impulses from the CNS to smooth muscle, cardiac muscle, and glands.
C) Sensory neurons that convey information from somatic receptors in the head, body wall, and limbs and from receptors from the special senses of vision, hearing, taste, and smell to the CNS.
D) sensory and motor neurons that supply the digested tract what
Please provide me a brief explanation why is correct or incorrect?
15) The concentration of ions in the chemical environment surrounding the neurons must be tightly regulated for neurons to function properly. Which of the following cells is most responsible for this?
a) astrocytes
b) Schwann cells
c) oligodendrocytes
d) satellite cells
Chapter 13 Solutions
Human Anatomy (8th Edition)
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 - Prob. 6RQCh. 13 - (a) Make a rough sketch of a lateral view of the...Ch. 13 - Prob. 8RQCh. 13 - Prob. 9RQCh. 13 - Prob. 10RQCh. 13 - (a) Describe the location of the reticular...Ch. 13 - Prob. 12RQCh. 13 - (a) What are the superior and inferior boundaries...Ch. 13 - Prob. 14RQCh. 13 - (a) In the spinothalamic pathway, where are the...Ch. 13 - Prob. 16RQCh. 13 - Prob. 17RQCh. 13 - A brain surgeon removed a piece of a woman's skull...Ch. 13 - Prob. 19RQCh. 13 - Prob. 20RQCh. 13 - Prob. 21RQCh. 13 - Describe the location and function of the ventral...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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- 65. Which of the following fibers provides the only output of the cerebellar cortex? A) Climbing fibers B) Golgi cell fibers C) Mossy fibers D) Parallel fibers E) Purkinje cell fibersarrow_forward(a) Describe the location of the reticular formation in the brain.(b) What does RAS mean, and what is its function?arrow_forwardWhat is the reticular activating system (RAS)?arrow_forward
- Discuss the concept of termination of neurotransmitter action by comparing the mechanisms by which acetylcholine and nitric oxide's actions are terminated. (a) Name the three primary mediators of purinergic receptors. (b) Which one of these mediators is sometimes used to treat supraventricular tachycardia? (c) Explain why the drug in (b) is considered safer than verapamil in the treatment of supraventricular tachycardia?arrow_forwardHow does the threshold and diameter of Aα fibers compare to Aβ, Aγ, Aδ and C fibers?arrow_forwarda) Which letter represents structure that is a receptor for sensory info? b) Which letter represents a skeletal muscle? c) Which letter represents structure that transmits info to CNS d) Which letter represents structure that is known as cell body of a sensory neurone? e) Which letter represents structure that is cell body of a post-ganglionic sympathetic neuron?arrow_forward
- Ocular dominance columns result from competition between LGN neurons of the opposite eyes for Stellate cells . (a) What is the key "ingredient" that enables a neuron to successfully compete for Stellate cells? (b) How is this ingredient demonstrated by Hubel and Wiesel using cats? (c) How is this ingredient demonstrated in more recent experiments using a toxin?arrow_forwardover a period of 3 years , a 40 year old man develops generalized dystonic , hyperkinetic movements and progressive dementia , his mother and one sister have a similar disease but his father and another sister are healthy. which of the following lesions is mostly likely to be present in the cerebral nervous system of the patient and his affected family members. A) atrophy of the caudate nuclei, B) loss of pigmented cells in the sustengria nigra, C) microglial nodules and multinucleated giant cells in the white matter, D) neurofibrillary tangles in the cortical neurons, E) spongiform changes in the cerebral cortexarrow_forward38) conduction velocity in an axon depends on which of the following? a) how much myelin the axon has b) the resistance in the axoplasm C) all of these d) how large the diameter of the axon isarrow_forward
- e) The velocity of nerve impulse conduction is the greatest in a) heavily myelinated, large-diameter neurone/nerve fibres, b) myelinated, small-diameter fibres, c) unmyelinated, small-diameter fibres, d) unmyelinated, large-diameter fibres.arrow_forward51) the somatic and autonomic nervous system differ in all of the following except......? a) target organ responses to their neurotransmitter b) their effectors c) regulation of activity by higher brain centers d) their efferent pathways and gangliaarrow_forward44) which of these effectors is not directly controlled by the autonomic nervous system? a) smooth muscle b) skeletal muscle c) most glands d) cardiac musclearrow_forward
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