Campbell Biology (10th Edition)
10th Edition
ISBN: 9780321775658
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
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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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.
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
If a mosquito bites you in the forearm, action potentials will have to reach the
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from the time the mosquito bites you until you swat it?
O somatic sensory receptors, afferent division, primary somatosensory cortex, primary
motor cortex, efferent division, SNS, skeletal muscles
O visceral sensory receptors, afferent division, primary somatosensory cortex, primary
motor cortex, efferent division, SNS, skeletal muscles
somatic sensory receptors, efferent division, primary somatosensory cortex, primary
motor cortex, afferent division, SNS, skeletal muscles
special sensory receptors, afferent division, primary somatosensory cortex, primary
motor cortex, efferent division, SNS, skeletal muscles
Chapter 49 Solutions
Campbell Biology (10th Edition)
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 - Prob. 1TYUCh. 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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- Actin 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_forward15. The diagram below illustrates the reflex pathway involved in the dilation (expansion) and contraction (shrinking) of pupils in the eye in response to changes in light intensity. Iris muscle οι οποίο Eye J K L M Neuron Y Optic nerve A person exits a darkened shopping centre and into high-intensity sunlight. Which of the following combinations correctly identifies neurons X and Y and the response to the change in light intensity? Neuron X Motor Sensory Motor Sensory Neuron X Brain Neuron Y Sensory Motor Sensory Motor Response Pupil dilates Pupil dilates Pupil contracts Pupil contactsarrow_forwardYour 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_forward
- If 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_forwardCompared 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_forward
- How many points would be felt in the example below? Explain your answer. Sensory neurons O 2 O 1 O 4 O 3arrow_forwardHi, Descending pathway that inhibit pain stimulates inhibitory interneueons in the spinal cord. True or False?arrow_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
- Somatic sensory and somatic motor information are propagated via specialized neurons. If you dip your toes in a hot tub before entering the tub, the action potentials generated by the water temperature travels via which of the following structures before it can be perceived by you? O unipolar neurons from the toes to the spinal nerve, ventral root, spinal cord, thalamus, primary somatosensory cortex O unipolar neurons from the toes to the spinal nerve, dorsal root, spinal cord, thalamus, primary somatosensory cortex O multipolar neurons from the toes to the spinal nerve, ventral root, spinal cord, thalamus, primary somatosensory cortex O multipolar neurons from the toes to the spinal nerves, dorsal root, spinal cord, thalamus, primary somatosensory cortexarrow_forwardWatch 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_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