Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
11th Edition
ISBN: 9781488687075
Author: Lisa, A. Urry
Publisher: PEARSON
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Question
Chapter 49.1, Problem 2CC
Summary Introduction
To explain: The effect of sensation on the fingers, in which a small nerve required to move hand get severed.
Concept introduction: Nerves are essential for carrying the motor and sensory signals in the nervous system.
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A technician is drawing blood from your arm for blood tests. As you feel the pain of the needle, you suppress your flexor reflex. Name the ascending pathway that carries pain signals and the region of the cortex that receivesthem (use Figure). Next, name the descending pathway you would use to inhibit the flexor reflex (use Figure).
Your friend’s cerebral blood vessel burst on account of high blood pressure and a high platelet count. After a few weeks of rehabilitation he can neither feel his fingers nor can he walk easily. Will this lack of sensation and motor abilities ever go away
M
Which of the following presents the elements of a sensory system in the correct order?
Select one:
Accessory structure modifies energy and sensory nerves transfer activity to central nervous system, thalamus processes
and relays activity to cerebral cortex, cerebral cortex transfers input to accessory structures and sensation or perception is
produced.
Accessory structure modifies energy, receptor transduces energy into neural activity, sensory nerves transfer activity to
central nervous system, thalamus processes and relays activity to cerebral cortex, cerebral cortex receives input and
produces sensation and perception.
Ob.
C. External receptors transduce energy into neural activity, sensory nerves transfer activity to central nervous system and
relays activity to cerebral cortex, cerebral cortex receives input and produces sensation and perception.
O d. Accessory structure modifies energy, receptor transduces energy and thalamus processes and relays activity to the
reticular…
Chapter 49 Solutions
Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
Ch. 49.1 - Which division of the autonomic nervous system...Ch. 49.1 - Prob. 2CCCh. 49.1 - Prob. 3CCCh. 49.2 - When you wave your right hand, what part of your...Ch. 49.2 - People who are inebriated have difficulty touching...Ch. 49.2 - Prob. 3CCCh. 49.3 - How can studying individuals with damage to a...Ch. 49.3 - Prob. 2CCCh. 49.3 - Prob. 3CCCh. 49.4 - How can studying individuals with damage to a...
Ch. 49.4 - Individuals with localized brain damage have been...Ch. 49.4 - WHAT IF? Suppose that a person with damage to the...Ch. 49.5 - Prob. 1CCCh. 49.5 - Prob. 2CCCh. 49.5 - WHAT IF? If you could detect early-stage...Ch. 49 - How does the circuitry of a reflex facilitate a...Ch. 49 - What roles do the midbrain, cerebellum, thalamus,...Ch. 49 - A patient has trouble with language and has...Ch. 49 - Prob. 49.4CRCh. 49 - Prob. 49.5CRCh. 49 - Activation of the parasympathetic branch of the...Ch. 49 - Prob. 2TYUCh. 49 - Patients with damage to Wernickes area have...Ch. 49 - The cerebral cortex does not play a major role in...Ch. 49 - After suffering a stroke, a patient can see...Ch. 49 - Injury localized to the hypothalamus would most...Ch. 49 - Prob. 7TYUCh. 49 - Prob. 8TYUCh. 49 - SCIENTIFIC INQUIRY Consider an individual who had...Ch. 49 - Prob. 10TYUCh. 49 - WRITE ABOUT A THEME: INFORMATION In a short essay...Ch. 49 - SYNTHESIZE YOUR KNOWLEDGE Imagine you are standing...
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- Name three body parts that occupy a large section of your sensory cortex. That is, what are some body parts that need to perform fine motor tasks and be able to detect minor sensations. Name these body parts and describe the functions that they would need to perform.arrow_forwardE Ev Choose... optic chiasmaT polo occipital giro groove hippocampus Choose... D Choose...arrow_forwardActin and myosin in the sarcomeres will remain Douna. O Actin and myosin in the sarcomeres are in the unbound state. Question 41 Which of the following is an example of sensory adaptation? O After the wound healed, the pain also went away. O You notice the smell of liver and onions cooking when you enter the kitchen, but soon you do not notice the odor although they are still cooking. When it is totally dark, the rods and cones of the eyes do not send any visual impulses. O The act of trying to read a book while riding in a car causes eyestrain. Question 42 What determines "loudness"? O The number of hair cells that are stimulated. O The wave frequency or number of vibrations per second. O As the noise gets louder, the auditory (Eustachian) tube expands. 1 pts 1 ptsarrow_forward
- 2. When touching the surface of a flask with water, the temperature of which is +40oC, with the bundles of fingers, a person first feels the smooth surface of the flask, and only then - heat. Explain the reasons for such a sequence of the formation of sensations. Name which pathways transmit information from the tactile, thermal receptors of the skin of the bundle of fingers to the sensory area of the cortex.arrow_forwardIf your shoes are too tight and causing pain which pathway is associated with this stimulus: Corticospinal pathway? Spinothalamic pathway? Dorsal column-medial lemniscal pathway? Descending pathway?arrow_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
- Compared to a large stimulus, how would each variable below change in response to a smaller sensory stimulus? Calcium influx in the sensory cell [ Choose ] Neurotransmitter release [Choose ] Generator potential amplitude [Choose ) Action potential amplitude [Choose)arrow_forwardHow many points would be felt in the example below? Explain your answer. Sensory neurons O 2 O 1 O 4 O 3arrow_forwardIn the following diagram, "First Pain" represents activity of "Second Pain" represents activity of , fibres, whereas fibres. Second pain First pain Pain intensity Time A-delta & A-alpha A-delta & A-beta; C A-alpha; A-beta A-beta & A-alpha; C O C; A-delta & A-betaarrow_forward
- Watch this video (http://openstaxcollege.org/l/reflexarc) to learn more about the reflex arc of the corneal reflex. When the right cornea senses a tactile stimulus, what happens to the left eye? Explain your answer.arrow_forwardWatch this video (http://openstaxcollege.org/l/motorpathway) to learn more about the descending motor pathway for the somatic nervous system. The autonomic connections are mentioned, which are covered in another chapter. From this brief video, only some of the descending motor pathway of the somatic nervous system is described. Which division of the pathway is described and which division is left out?arrow_forwardWatch this video (http://openstaxcollege.org/l/occipital) to learn more about a transverse section through the brain that depicts the visual pathway from the eye to the occipital cortex. The first half of the pathway is the projection from the RGCs through the optic nerve to the lateral geniculate nucleus in the thalamus on either side. This first fiber in the pathway synapses on a thalamic cell that then projects to the visual cortex in the occipital lobe where seeing, or visual perception, takes place. This video gives an abbreviated overview of the visual system by concentrating on the pathway from the eyes to the occipital lobe. The video makes the statement (at 0:45) that specialized cells in the retina called ganglion cells convert the light rays into electrical signals. What aspect of retinal processing is simplified by that statement? Explain your answer.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