CUSTOM BIOLOGY
19th Edition
ISBN: 9781323945490
Author: Urry
Publisher: Pearson Custom Publishing
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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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DRAW IT The reflex that pulls your hand away when you prickyour finger on a sharp object relies on a neuronal circuit withtwo synapses in the spinal cord. (a) Using a circle to represent across section of the spinal cord, draw the circuit. Label the typesof neurons, the direction of information flow in each, and thelocations of synapses. (b) Draw a simple diagram of the brainindicating where pain would eventually be perceived.
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…
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.
Chapter 49 Solutions
CUSTOM BIOLOGY
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 - Prob. 4TYUCh. 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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- Your cortex decodes incoming action potentials from sensory pathways. How does it tell the difference between hot and cold? Between cool and cold? Between ice on your finger and ice on your foot?arrow_forward2. 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_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_forwardDescribe the phantom limb phenomenon?arrow_forwardHow many points would be felt in the example below? Explain your answer. Sensory neurons O 2 O 1 O 4 O 3arrow_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