09:19Sympathetic versus Parasympathetic Nervous System | Nervous SystemDr Matt & Dr Mike722views3rank1comments
06:38The Autonomic Nervous System: Sympathetic and Parasympathetic DivisionsProfessor Dave Explains1471views3rank
Multiple ChoiceWhy does the sympathetic nervous system cause decreased activity in the digestive tract?465views10rank
Multiple ChoiceWhy are many preganglionic fibers in the sympathetic nervous system short?399views6rank
Multiple ChoiceEfferent neurons in the sympathetic nervous system will always arise in the __________________. Then, they will pass through the sympathetic ____________, where they will either synapse with another neuron, or continue towards the effector and synapse later on.327views7rank
Multiple ChoiceA preganglionic fiber arriving at the sympathetic trunk could do any of the following EXCEPT:282views8rank
Multiple ChoiceWhich of the following structures would not be innervated by splanchnic nerves?314views10rank
Textbook QuestionIndicate the results of sympathetic activation of the following structures: sweat glands, eye pupils, adrenal medullae, heart, bronchioles of the lungs, liver, blood vessels of vigorously working skeletal muscles, blood vessels of digestive viscera, salivary glands.250views
Textbook QuestionDescribe the meaning and importance of sympathetic tone and parasympathetic tone.293views
Textbook QuestionWhich of the following actions would you expect when sympathetic neurons release norepinephrine onto β1 receptors?a. Decreased sweat productionb. Constriction of blood vessels serving the digestive, urinary, and integumentary systemsc. Adjustment of the shape of the lensd. Increase in the rate and force of contraction of the heart.176views
Textbook QuestionFill in the blanks: The sympathetic nervous system is also known as the ________ division because the cell bodies of its preganglionic neurons are located in the ________ .207views
Textbook QuestionSympathetic preganglionic neurons synapse:a. directly on target cells.b. on skeletal muscle fibers.c. on sympathetic chain or collateral ganglia.d. on vagal ganglia.149views
Textbook QuestionMark the following statements as true or false. If a statement is false, correct it to make a true statement.b. Sympathetic stimulation increases sweat secretion.160views
Textbook QuestionMark the following statements as true or false. If a statement is false, correct it to make a true statement.d. Sympathetic tone controls the resting rate of the heart.149views
Textbook QuestionUsing 20 or fewer words, define each of the following terms in your own words.a. Sympathetic nervous system164views
Textbook QuestionYou are running a race to the top of a mountain. Explain all the changes your sympathetic nervous system will initiate to maintain homeostasis as you run the race.169views
Textbook QuestionMr. Chevalier has been diagnosed with Horner syndrome, which is caused by dysfunction of the sympathetic neurons in the superior cervical ganglion that innervate structures of the head, face, and neck. What symptoms is Mr. Chevalier likely to face due to his disease? Explain.190views
Textbook QuestionHow does the emergence of sympathetic fibers from the spinal cord differ from the emergence of parasympathetic fibers?173views
Textbook QuestionThe parasympathetic nervous system influences digestion by a. relaxing smooth muscle, b. stimulating peristalsis and secretory activity, c. constricting sphincters, d. none of these.352views1rank
Textbook QuestionExplain both the anatomical and functional divisions of the nervous system. Include the subdivisions of each.135views
Textbook QuestionTara, a 16-year-old girl, was rushed to the hospital after taking a bad spill off the parallel bars. After she had a complete neurological workup, her family was told that she would be permanently paralyzed from the waist down. During rehabilitation, her neurologist outlined for Tara and her parents the importance of preventing complications in such cases. Common complications include urinary infection, bed sores, and muscular spasms. Using your knowledge of neuroanatomy, explain the underlying reasons for these complications.134views
Textbook QuestionCommon findings in heart failure are fluid retention by the kidneys and stimulation of the heart by the sympathetic nervous system. How would both of these findings help the body to compensate for the failing heart?131views
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