Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 38.4, Problem 3CC
WHAT IF? If you stimulated a sensory neuron of an animal electrically, how would that stimulation be perceived?
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1. Make a model or draw 3 multipolar neurons. Imagine you had something crawling on your arm.
The first is a sensory neuron, getting its information from the skin and sensing the movement.
The second is an interneuron. It relays information from the first (sensory neuron) to the CNS.
The third is a motor neuron. It begins in the CNS but leads all the way to the muscle, so that you can move the fingers and scratch the area.
On your images/model the "dendrites" should be blue, "axon" should be green and "soma" should be yellow. As you connect them to each other, take notice in which areas are the receiving end, and which are the transmissive ends.
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Chapter 38 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 38.1 - Which division of the autonomic nervous system...Ch. 38.1 - Prob. 2CCCh. 38.2 - When you wave your right hand, what part of your...Ch. 38.2 - People who are inebriated have difficulty touching...Ch. 38.2 - WHAT IF? Two groups of individuals have CNS...Ch. 38.3 - Prob. 1CCCh. 38.3 - Prob. 2CCCh. 38.3 - WHAT IF? If a woman with a severed corpus callosum...Ch. 38.4 - Which one of the five categories of sensory...Ch. 38.4 - Prob. 2CC
Ch. 38.4 - WHAT IF? If you stimulated a sensory neuron of an...Ch. 38.5 - Prob. 1CCCh. 38.5 - Prob. 2CCCh. 38.5 - Prob. 3CCCh. 38.5 - Prob. 4CCCh. 38.6 - Contrast the light-detecting organs of planarians...Ch. 38.6 - Prob. 2CCCh. 38.6 - MAKE CONNECTIONS Compare the function of retinal...Ch. 38 - Patients with damage to Wernickes area have...Ch. 38 - The cerebral cortex does not play a major role in...Ch. 38 - The middle ear converts A. air pressure waves to...Ch. 38 - Prob. 4TYUCh. 38 - Prob. 5TYUCh. 38 - Prob. 6TYUCh. 38 - Prob. 7TYUCh. 38 - SCIENTIFIC INQUIRY Consider an individual who had...Ch. 38 - Prob. 9TYUCh. 38 - FOCUS ON ORGANIZATION In a short essay (100-150...Ch. 38 - Prob. 11TYU
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- What channels are open at 3 if this was recorded on the axon of a sensory neuron? Check all that apply 1. K+ voltage gated channels 2. K+ leak channels 3. Na+ ligand gated channels 4. Na+ stimulus gated channels 5. Na+ voltage gated channels 6. Ca+ voltage gated channels 7. Cl- ligand gated channelsarrow_forwardWrite a Worm neuronal function assay paragraph about a worm neuronal function and find an experiment that could test why the worm may have this worm neuronal function. Such as a worm spiraling. One robust assay of worm behavior is…. “Finish the sentence” and find an experiment that could determine why the worm behavior is this way.arrow_forwardWHAT IF? Ouabain, a plant substance used in some cultures topoison hunting arrows, disables the sodium-potassium pump.What change in the resting potential would you expect to seeif you treated a neuron with ouabain? Explain.arrow_forward
- 13. Properties of male and female rat nociceptors that respond to painful mechanical stimuli (for instance a sharp tack) were recently studied by Hendrich, et al. (2012). The sensory endings of these nociceptors are found on the foot of the rat. They measured resting membrane potential (RMP) (Fig 2B) and action potential threshold (Fig 2C) in the nociceptors. The results and figure legend are shown below. Use the data (attached) to answer the following questions. a. What category of sensory afferent are the authors studying? b. What reflex(es) does this sensory afferent participate in? c. What conclusions can the authors make based on the data shown in this figure? Speculate on what physiological/behavioral consequences there might be based on the findings.arrow_forwardNeed helparrow_forwardPlease answer asaparrow_forward
- 4. Frequency (a) (b) (c) (d) (e) selectivity of the inner hair cells is greatly enhanced by: force generated by the opening of the mechanotransduction cells. channel in inner hair force generated by the opening of the mechanotransduction channel in outer hair cells. myosin motors at the tips of the stereocilia. voltage-dependent changes in length of the outer hair cells. All of the abovearrow_forwardQ4.1. The image below shows a neuron's response to a medium-intensity stimulus. Which of the options underneath it correctly shows a signal for a weaker stimulus? Time (ms) 60 Time (ms) Time (ms) 60 Time (ms) Time ms) 60arrow_forward1. Protein anions have a charge. However, they do not move across the membrane to produce changes in RMP. Why? 2. At the molecular level, what causes the absolute refractory period? 3. At the molecular level, what is different during the relative refractory period? 4. What would happen if Na+ channels opened and stayed open? 5. How is stimulus intensity coded in APs? 6. What effect does AP frequency have on NT release?arrow_forward
- Scientists are experimenting with new technologies that could help people with missing limbs. In one investigation, electrodes implanted in the nervous tissue of a monkey were connected to an artificial hand. The monkey's nervous system was able to direct the artificial hand to move. The below image shows the monkey raising a piece of zucchini to its mouth using the thought-controlled robotic are (A). a. Using a flowchart, illustrate the basic neural pathway from the sensory stimulus to the motor output. b. What are some other potential applications for this technology? c. Do the benefits to human life justify this form of animal research?arrow_forwardCan you help me determine which graph is best suited for each?arrow_forwardCan you please solve part d and e?arrow_forward
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The Sensorimotor System and Human Reflexes; Author: Professor Dave Explains;https://www.youtube.com/watch?v=M0PEXquyhA4;License: Standard youtube license