Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780134433769
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman
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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SEQUENCING: Arrange the sequence of events that happen during an action of sensory and motor
systems of animals. Assign numbers, I being the first event until 6 being the last. Write your answers in
your notebook.
10. receptor potential
11. action potential in sensory neuron
12. production of action response
13. receptor transduces energy of stimulus into electrical energy
14. signal transmitted to CNS
15. stimulus (such as light energy)
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, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for 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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- Can measures of sensory acuity be obtained through filaments and biothesiometer? Explan why or why not Do you tink changing the frequency of the biothesiometer vibrations would affect your measured results? Why? Which settings affect the frequency of stimulation, which affect amplitudearrow_forwardWhat 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_forward
- WHAT 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_forward13. 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_forward
- Please answer asaparrow_forward4. 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_forwardScientists 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_forward
- Please help with this question. It is not the third option with the three peaks.arrow_forward4 The human eye has a biological control system that varies the pupil diameter to maintain constant light intensity to the retina. As the light intensity increases, the optical nerve sends a signal to the brain, which commands internal eye muscles to decrease the pupil's eye diameter. When the light intensity decreases, the pupil diameter increases. Draw a functional block diagram of the light-pupil system indicating the input, output, and intermediate signals; the sensor; the controller; and the actuator. (Non-anonymous question) * (a) (b) (c) FIGURE P1.7 Pupil is shown black; light beam is shown white. a. Light beam diameter is larger than pupil. b. Light beam diameter is smaller than pupil. c. Narrow light beam is illuminated at pupil's edge.arrow_forwardCheck Your Understanding 1. In what tissues or organs are Meissner's and Pacinian corpuscles located? What is the specific function of each? 2. Would you expect certain areas of the body to contain more sensory receptors? Why or why not? Did your results in Exercise 1 reinforce your expectations? 3. If the lips were tested for two-point discrimination, what results would you expect? Why?arrow_forward
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