Anatomy and Physiology
9th Edition
ISBN: 9781260256000
Author: SALADIN
Publisher: MCG
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Textbook Question
Chapter 15, Problem 1TYC
You are dicing raw onions while preparing dinner, and the vapor makes your eyes water. Describe the afferent and efferent pathways involved in this response.
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Chapter 15 Solutions
Anatomy and Physiology
Ch. 15.1 - Prob. 1BYGOCh. 15.1 - The fundamental function and effectors of the...Ch. 15.1 - Why this system is called autonomic; how it...Ch. 15.1 - Prob. 3AYLOCh. 15.1 - Why it cannot be said that at any given moment,...Ch. 15.1 - Basic anatomical components of the ANSCh. 15.1 - How autonomic efferent pathways differ from...Ch. 15.2 - Explain why the sympathetic division is also...Ch. 15.2 - Prob. 4BYGOCh. 15.2 - Prob. 1AYLO
Ch. 15.2 - Anatomy of the sympathetic chain; the number of...Ch. 15.2 - Prob. 3AYLOCh. 15.2 - Differences between the spinal nerve route,...Ch. 15.2 - Prob. 5AYLOCh. 15.2 - Prob. 6AYLOCh. 15.2 - The degree and significance of neural divergence...Ch. 15.2 - Why the adrenal medulla can be considered part of...Ch. 15.2 - Names and numbers of the cranial and spinal nerves...Ch. 15.2 - Prob. 10AYLOCh. 15.2 - Prob. 11AYLOCh. 15.2 - The location and functions of the enteric nervous...Ch. 15.3 - Prob. 10BYGOCh. 15.3 - Prob. 11BYGOCh. 15.3 - Prob. 1AYLOCh. 15.3 - Prob. 2AYLOCh. 15.3 - Prob. 3AYLOCh. 15.3 - Prob. 4AYLOCh. 15.3 - Prob. 5AYLOCh. 15.3 - Prob. 6AYLOCh. 15.3 - Autonomic control of certain organs by dual...Ch. 15.3 - Prob. 8AYLOCh. 15.4 - Examples of the influence of the cerebral cortex,...Ch. 15 - Prob. 1TYRCh. 15 - Muscarinic receptors bind a. epinephrine. b....Ch. 15 - All of the following cranial nerves except the...Ch. 15 - Which of the following cranial nerves carries...Ch. 15 - Prob. 5TYRCh. 15 - Epinephrine is secreted by a. sympathetic...Ch. 15 - Prob. 7TYRCh. 15 - The gray communicating ramus contains a. visceral...Ch. 15 - Prob. 9TYRCh. 15 - Which of these does not result from sympathetic...Ch. 15 - Certain nerve fibers are called _______ fibers...Ch. 15 - Prob. 12TYRCh. 15 - Prob. 13TYRCh. 15 - Most parasympathetic preganglionic fibers arc...Ch. 15 - Prob. 15TYRCh. 15 - Prob. 16TYRCh. 15 - Prob. 17TYRCh. 15 - Prob. 18TYRCh. 15 - Prob. 19TYRCh. 15 - Prob. 20TYRCh. 15 - Baro -Ch. 15 - Lyto-Ch. 15 - Prob. 3BYMVCh. 15 - Prob. 4BYMVCh. 15 - Prob. 5BYMVCh. 15 - Prob. 6BYMVCh. 15 - reno-Ch. 15 - Prob. 8BYMVCh. 15 - Prob. 9BYMVCh. 15 - Prob. 10BYMVCh. 15 - Prob. 1WWTSCh. 15 - The parasympathetic nervous system controls...Ch. 15 - Voluntary control of the ANS is not possible.Ch. 15 - Prob. 4WWTSCh. 15 - Prob. 5WWTSCh. 15 - Prob. 6WWTSCh. 15 - Prob. 7WWTSCh. 15 - Prob. 8WWTSCh. 15 - Prob. 9WWTSCh. 15 - The two divisions of the ANS have cooperative...Ch. 15 - You are dicing raw onions while preparing dinner,...Ch. 15 - Prob. 2TYCCh. 15 - Prob. 3TYCCh. 15 - What would be the advantage to a wolf in having...Ch. 15 - Pediatric literature has reported many cases of...
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- How would the afferent pathway be affected by exposing this entire neuron to a drug that blocks voltage-gated Ca21 channels?arrow_forwardA student is eating at the lab bench (a clear violation of lab policies) and mistakenly sprinkles tetrodotoxin on his fries. Explain the origin of the toxin and its normal function in that animal. Given that this substance inhibits voltage-gated sodium channels, indicate whether each of the statements below are true or false. Explain your answers. Explain the time course of the response. It will be more difficult for the student’s neurons to generate action potentials The student’s neurons will fire more frequently because membrane potential will be brough closer to threshold. The effect on the membrane potential o the student’s neurons could be predicted by the Nernst equation, which factors in the effects of both ion concentration and ion permeability.arrow_forwardCould you please tell me what would be the appropriate choice that matches what efferent neurons do?arrow_forward
- osmosis is how excess salts that accumulate in cells are transferred to the blood stream so that they can be removed from the body. Explain how this process works in terms of tonicity.arrow_forwardrepeatedly stimulated, and recordings are made of the response. What effect would you expect to observe? Hint: think 3) What response would you predict in a post-synaptic cell in the above situation? Follow directions and answer the following questions: A drug that blocks ATPase enzymes (enzymes that hydrolyze ATP) is introduced into a neuron. The neuron is then 1) What is the effect of AP frequency on the amount of transmitter released at the terminal? Activity 8: Synaptic Transmission at Axon Termines Apply Your Knowledge of the role of the Na+/K+ ATPase in the physiology of a neuron.arrow_forwardMatch each description with the appropriate receptorarrow_forward
- Photoreceptor cells in the retina of the eye convert visible light into signals. They have special ion channels that are open to Na+ only in the dark. Visible light activation results in a change in membrane potential, as photons lead to closure of Na+ channels. Which of the following can you conclude? Select all that apply. Photoreceptor membrane potential does not change in response to light The photoreceptor cell is depolarized in the dark The photoreceptor cells is depolarized with light Photoreceptor cells hyperpolarize to lightarrow_forwardIn the figure below, assume each vesicle represents many vesicles. From which of the three axon 2. terminals will the greatest amount of transmitter be released? Why? Action potential Action potential Action potential Ca2 Ca* Ca?+ Ca2* Caz+ Ca Ca?+ Ca2+ Ca2+ Ca2+arrow_forward3) Neurons cannot respond during the absolute refractory period because: a) the concentration gradients for Na+ and K+ are reversed. b) the cell is below its normal resting membrane potential. c) voltage-gated Na+ channel activation gates are closed. d) voltage-gated Na+ channel inactivation gates are closed.arrow_forward
- Some have compared the "all or none" action potential to flushing a toilet. The absolute refractory period (when no amount of pressing the lever will produce another flush) is set by: the inactivation of voltage gated potassium channels the inactivation of voltage gated sodium channels the opening of voltage gated sodium channels the inactivation of voltage gated chloride channelsarrow_forwardA patient accidentally touches a hot stove, but they made no response to let go of the stove. They said they felt the heat of the stove and processed that it was hot but could not move their hand away from the stove. What excitable cell is possibly damaged for this patient? A) Group of answer choices B) Afferent neurons C) Interneurons D) Efferent neurons E) A & B A & Carrow_forwardCompare and contrast the meanings of afferent and efferent.arrow_forward
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