LSC (CONCORDIA UNIV ST PAUL) BIO 315/316: B&N DPF Connect with APR and Phils Online Access for Anatomy and Physiology: The Unity of Form and Function 180 Day Access ENTRP
9th Edition
ISBN: 9781264794645
Author: Kenneth Saladin
Publisher: McGraw-Hill Learning Solutions
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Textbook Question
Chapter 15, Problem 4TYC
What would be the advantage to a wolf in having its sympathetic nervous system stimulate the piloerector muscles? What happens in a human when the sympathetic system stimulates these muscles?
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Botulinum toxin (Botox) works by blocking the exocytosis of acetylcholine. A number of different medical and cosmetic procedures use this chemical. Injection of small quantities of botulinum toxin (Botox) into specific overactive muscles causes muscle relaxation that smooths the skin and reduces wrinkles. Injection into certain spinal ganglia helps reduce a certain form of chronic pain, and injections into the salivary glands causes the reduction of overactive saliva production.
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Botulinum toxin (Botox) works by blocking the exocytosis of acetylcholine. A number of different medical and cosmetic procedures use this chemical. Injection of small quantities of botulinum toxin (Botox) into specific overactive muscles causes muscle relaxation that smooths the skin and reduces wrinkles. Injection into certain spinal ganglia helps reduce a certain form of chronic pain, and injections into the salivary glands causes the reduction of overactive saliva production.
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When the neurotransmitter acetylcholine (ACh) binds the acetylcholine receptor (a GPCR) on muscle cells, it causes them to contract. ZIGGY, a chemical analog of ACh, also binds to the same acetylcholine receptor on muscle cells, but instead causes the muscle cells to relax. For this reason, it is sometimes prescribed as a muscle relaxer. Explain in 3-4 sentences how ZIGGY could cause muscle relaxation.
How can both ZIGGY and ACh bind the same GPCR? And then how can they have different effects on the cells, despite binding to the same receptor on the same cells?
Chapter 15 Solutions
LSC (CONCORDIA UNIV ST PAUL) BIO 315/316: B&N DPF Connect with APR and Phils Online Access for Anatomy and Physiology: The Unity of Form and Function 180 Day Access ENTRP
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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- What are the main differences between the sympathetic and parasympathetic branches of the autonomic nervous system?arrow_forwardOn a field trip to a lake, a college student captures a worm-shaped animal with segmented body wall muscles. While examining the specimen in the laboratory the following day, she determines that the main nerve cord runs along the ventral side of the animal. Is this animal a chordate?arrow_forwardWhich is an incorrect statement about simple nerve nets? a- Neurons are randomly poisoned relative to one another. b- They control the contraction and expansion of the gastrovascular cavity. c- They don’t contain nerves. d- They are organized into ganglia.arrow_forward
- What is the role of the nervous system in animals?arrow_forwardWhich of the following statements regarding the motor end plate in the somatic motor division of the nervous system is true? After the activation of voltage-gated calcium channels, the neuron releases ACh onto the muscarinic receptors on the surface of the highly folded area of the muscle fibre.   The preganglionic nerve fibre releases ACh onto the postganglionic nerve fibre, which then releases ACh onto the cholinergic receptors of the motor end plate.   Chemically gated monovalent cation channels on the motor end plate are activated once the motor neuron releases ACh onto the nicotinic receptors on the surface of the muscle cell.   The AChE enzyme enhances the amount of ACh released into the neuromuscular junctionarrow_forwardThe reflex arc is the fastest way the body has to move a body part from danger or away from the source of pain. Have you ever noticed your own reflex response? Did you notice that you felt the pain after you yanked your hand away from the source of pain? Which is the sequence of structures involved in a reflex response? a. motor neurons → effectors → brain → sensory neurons → interneurons b. effectors → sensory neurons → brain → motor neurons c. sensory neurons → interneurons → motor neurons → effectors d. sensory neurons → motor neurons → interneurons → effectorsarrow_forward
- Post-synaptic receptors located on the membrane of skeletal muscle cells allow the muscle cells/fibers to respond to the neural-stimulus. What is the name of the receptors located on the post-synaptic membrane of the muscle cells (you can't find the answer in the textbook; you have to do some research)? 22. 26. A. beta receptors muscle contr alon is actually called The B. alpha receptors C. muscarinic receptorsry D. nicotinic receptorsarrow_forwardThe venom of many cobras contains a potent neurotoxin that binds to ligand-gated Na+ channels,causing them to open. Unlike ACh, which binds to and then rapidly unbinds from ligand-gated Na+ channels, the neurotoxin tends to remain bound to ligand-gated Na+ channels. How does this neurotoxin affect the nervous system’s ability to stimulate skeletal muscle contraction? How does it affect the ability of skeletal muscle fibers to respond to stimulation?arrow_forwardWatch this video (http://openstaxcollege.org/l/neurotrans) to learn about the release of a neurotransmitter. The action potential reaches the end of the axon, called the axon terminal, and a chemical signal is released to tell the target cell to do something—either to initiate a new action potential, or to suppress that activity. In a very short space, the electrical signal of the action potential is changed into the chemical signal of a neurotransmitter and then back to electrical changes in the target cell membrane. What is the importance of voltage-gated calcium channels in the release of neurotransmitters?arrow_forward
- What is the route from the motor cortex to the muscles?A. Axons from the motor cortex go directly to the muscles.B. Axons from the motor cortex go to the thalamus, which has axons to the muscles.C. Axons from the motor cortex go to the cerebellum, which has axons to the muscles.D. Axons from the motor cortex go to the brainstem and spinal cord, which have axons to the muscles.arrow_forwardThe ocular muscle has a very fast response time compared to the gastrocnemius and soleus muscles. What is the use for this? The muscle needs to react fast in order to respond quickly to external stimuli. The ocular muscle is quite thin and can easily twitch. The gastrocnemius muscle has too much muscle mass to be able to respond quickly. The soleus muscle is far away from the brain compared to the ocular muscle.arrow_forwardWhat are the effects of acetylcholine and norepinephrine as they relate to the functioning of the sympathetic and parasympathetic nervous system? Why has extract of deadly nightshade been an effective remedy for digestive cramps for over 2000 years?arrow_forward
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