Which of the following statements regarding autonomic nervous system fünction is false? autonomic efferent axons may be found in both cranial and spinal nerves autonomic efferent pathways are usually two neuron pathways preganglionic and postganglionic autonomic efferent neurons synapse in autonomic ganglia cranial nerves III, VII, IX, and X carry preganglionic parasympathetic axons Onone of the above are false (all are true)

Which of the following statements regarding autonomic nervous system fünction is false? autonomic efferent axons may be found in both cranial and spinal nerves autonomic efferent pathways are usually two neuron pathways preganglionic and postganglionic autonomic efferent neurons synapse in autonomic ganglia cranial nerves III, VII, IX, and X carry preganglionic parasympathetic axons Onone of the above are false (all are true)

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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In the parasympathetic branch of the autonomic nervous system, there are two cholinergic synapses (synapses mediated by acetylcholine) on the way to the target tissue. The first synapse is in the autonomic ganglion (from the "preganglionic neuron"), and is always mediated by nicotinic acetylcholine receptors (NACHRS). The second synapse (from the "postganglionic neuron") is on the target cell, and is mediated by muscarinic acetylcholine receptors (mAChRs). C. Which synapse is expected to be blocked by removal of Ca2+ from the external solution?
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Malathion is an insecticide commonly used in the horticultural industry. Many homeowners apply this chemical to their trees to rid them of infestation by aphids or other insects. Malathion is classified as an organophosphate insecticide. Exposure to malathion is very dangerous to humans and animals because it acts as an irreversible inhibitor of acetylcholinesterase. Predict what might happen to synaptic communication between cholinergic neurons if an individual or animal was poisoned with malathion, and clearly describe the mechanisms at work.
some blanks may be filled with more than one term; some terms may be used more than once, some terms may not be used) ACh (acetylcholine) Brainstem CN I CN II CN III CN IV CN IX CN V CN VI CN VII CN VIII CN X CN XI CN XII Ganglionic parasympathetic neurons Ganglionic sympathetic neurons Lateral horn of spinal cord segments T1-L2 Lateral gray matter of spinal cord segments S2-S4 Medulla oblongata Midbrain NE (norepinephrine) Parasympathetic Paravertebral ganglia Parasympathetic autonomic ganglia Pelvic splanchnic nerve Pons Postganglionic parasympathetic neurons Postganglionic sympathetic neurons Preganglionic parasympathetic neurons Preganglionic sympathetic neurons Prevertebral ganglia Spinal cord segment C1-C4 Spinal cord segment C5-T1 Spinal cord segment T1-L2 Spinal cord segment L1-L4 Spinal cord segment L4-S4 Spinal cord segment S2-S4 Somatic motor neurons Somatic sensory neurons Sympathetic Sympathetic chain ganglia Sympathetic trunk ganglia Visceral sensory neurons…
The Autonomic System Division definition Autonomic reflexes Similarities between Parasympathetic(PNS) and sympathetic (SNS) Differences between PNS and SNS ACh (acetylcholine) and nACh Receptors at the Autonomic ganglia (PSN and SNS) Page 1 of 2 418 words English (United States) O Focus 273% esc B IU @ %23 2$ % & 2 3 4 7 8 dele Q W E R Y P
Describe the differences in both structure & function between the sympathetic & parasympathetic nerves
Describe how the sympathetic and parasympathetic nervous system affects the following organs: heart, eyes, gastrointestinal system
What types of axons (preganglionic or postganglionic,myelinated or unmyelinated) are found in the white andgray rami communicantes?
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