Anatomy & Physiology (6th Edition)
6th Edition
ISBN: 9780134156415
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Chapter 13, Problem 33MC
Summary Introduction
To determine:
The name of the reflex involved in the reciprocal activation of the antagonist muscle is:
(a) Crossed-extensor
(b) Flexor
(c) Tendon
(d) Muscle stretch.
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Chapter 13 Solutions
Anatomy & Physiology (6th Edition)
Ch. 13.1 - What are the three levels of sensory integration?Ch. 13.1 - Prob. 2CYUCh. 13.1 - Your cortex decodes incoming action potentials...Ch. 13.2 - Your PNS mostly consists of nerves. What else...Ch. 13.2 - Youve cut your finger on a broken beaker in your...Ch. 13.4 - What are tears and what structure secretes them?Ch. 13.4 - Prob. 5CYUCh. 13.4 - Arrange the following in the order that light...Ch. 13.4 - You have been reading this book text for a while...Ch. 13.4 - Prob. 8CYU
Ch. 13.4 - For each of the following, indicate whether it...Ch. 13.4 - Which part of the visual field would be affected...Ch. 13.4 - Prob. 13CYUCh. 13.4 - Name the five taste modalities. Name the three...Ch. 13.5 - Apart from the bony boundaries, which structure...Ch. 13.5 - Which structure inside the spiral organ allows us...Ch. 13.5 - Prob. 17CYUCh. 13.5 - If the brain stem did not receive input from both...Ch. 13.5 - Prob. 19CYUCh. 13.6 - Prob. 20CYUCh. 13.6 - What is in a nerve besides axons?Ch. 13.6 - Wills femoral nerve was crushed while clinicians...Ch. 13.7 - Name the cranial nerve(s) most involved in each of...Ch. 13.8 - Prob. 24CYUCh. 13.8 - After his horse-riding accident, the actor...Ch. 13.9 - What are varicosities and where would you find...Ch. 13.10 - Which parts of the nervous system ultimately plan...Ch. 13.11 - Prob. 28CYUCh. 13.11 - Prob. 29CYUCh. 13.11 - Prob. 30CYUCh. 13.11 - Prob. 31CYUCh. 13 - The large onion-shaped receptors that are found...Ch. 13 - Proprioceptors include all of the following except...Ch. 13 - Prob. 3MCCh. 13 - Prob. 5MCCh. 13 - For each of the following muscles or body regions,...Ch. 13 - Prob. 33MCCh. 13 - Prob. 4MCCh. 13 - Match the names of the cranial nerves in column B...Ch. 13 - Prob. 8MCCh. 13 - The portion of the fibrous layer that is white and...Ch. 13 - Which sequence best describes a normal route for...Ch. 13 - Prob. 11MCCh. 13 - Damage to the medial recti muscles would probably...Ch. 13 - The phenomenon of dark adaptation is best...Ch. 13 - Blockage of the scleral venous sinus might result...Ch. 13 - Nearsightedness is more properly called a. myopia,...Ch. 13 - Of the neurons in the retina, the axons of which...Ch. 13 - Which reactions occur when a person looks at a...Ch. 13 - The blind spot of the eye is a. where more rods...Ch. 13 - Olfactory tract damage would probably affect your...Ch. 13 - Sensory impulses transmitted over the facial,...Ch. 13 - Taste buds are found on the a. anterior part of...Ch. 13 - Gustatory epithelial cells are stimulated by a....Ch. 13 - Olfactory nerve filaments are found a. in the...Ch. 13 - Conduction of sound from the middle ear to the...Ch. 13 - Which of the following statements does not...Ch. 13 - Pitch is to frequency of sound as loudness is to...Ch. 13 - The structure that allows pressure in the middle...Ch. 13 - Which of the following is important in maintaining...Ch. 13 - Equilibrium receptors that report the position of...Ch. 13 - Which of the following is not a possible cause of...Ch. 13 - Which of the following are intrinsic eye muscles?...Ch. 13 - Prob. 32MCCh. 13 - List the structural components of the peripheral...Ch. 13 - Prob. 47SAQCh. 13 - Central pattern generators (CPGs) are found at the...Ch. 13 - Prob. 48SAQCh. 13 - Explain how a crossed-extensor reflex exemplifies...Ch. 13 - What clinical information can be gained by...Ch. 13 - Prob. 46SAQCh. 13 - How do rods and cones differ functionally?Ch. 13 - Where is the fovea centralis, and why is it...Ch. 13 - Prob. 37SAQCh. 13 - Since there are only three types of cones, how can...Ch. 13 - Where are the olfactory sensory neurons, and why...Ch. 13 - (a) Define plexus. (b) Indicate the spinal roots...Ch. 13 - What is the homeostatic value of flexor reflexes?Ch. 13 - Prob. 43SAQCh. 13 - Prob. 1CCSCh. 13 - Prob. 2CCSCh. 13 - Prob. 3CCSCh. 13 - Prob. 1CCSSCh. 13 - Prob. 2CCSSCh. 13 - Prob. 3CCSSCh. 13 - Prob. 4CCSSCh. 13 - Prob. 5CCSS
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- What would happen without input from gamma motor neurons? A) Information about velocity would continue, but information about length would no longer be possible. B) The spindles would be unable to provide feedback as the muscle contracted. C) Neither the intrafusal nor extrafusal fibers would contract. D) The extrafusal fibers would not contract, but the intrafusal fibers would continue to contract.arrow_forwarda) Describe how the isolated muscle behaved as the stimulus interval was further decreased. b) What is tetanus? Explain the mechanism behind this phenomenon. c) At which stimulus interval did you observe tetanus? What frequency of stimulation does that correspond to?arrow_forwardWhy is an interneuron needed to provide reciprocal inhibition of the flexor muscle when an extensor muscle is activated?arrow_forward
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- How is muscle contraction stopped? Which of the following is/are correct? A) The brain stops sending the nerve impulse that commands the muscle to contract, interrupting communication at the neuromuscular junction B) Acetylcholineesterase (AChE) is released into the synaptic cleft to destroy any remaining Acetylcholine C) No mechanism is necessary. When the antagonist begins to contract, it forces relaxation and stretch of the agonist muscle. D) Relaxation occurs as the myosin heads are "snapped" off of the thick filaments. This interrupts the crossbridge and allows for muscles to stretch E) Relaxation only occurs if the brain sends a "stop" signal to the musclearrow_forwardExplain briefly the role of dopamine in skeletal muscle movement. (b) Describe the pathophysiological changes evident in Parkinson’s Disease involving the body’s use of dopamine. (c) Describe in detail the proposed mechanism of action of the experimental anti-Parkinsonian drug Prosavin.arrow_forwardIf acetylcholinesterase is defective, or disabled, * A)there will be no muscle contraction B)acetylcholine will not be released from synaptic vescicles inside axon terminal C)acetylcholine will not be able to bind to ACh receptors d)muscle fiber sarcolemma will be overstimulatedarrow_forward
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