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Phys Ch. 15

QuestionAnswer
Which cranial nerve provides parasympathetic innervation to control the production and secretion of tears, nasal secretions, and saliva? facial nerve (CN VII)
In response to a specific stimulus, autonomic reflex arcs can trigger the following responses: smooth m. contraction, cardiac m. contraction, secretion by glands
The abdominal aortic plexus is composed of postganglionic axons from the __ ganglia and preganglionic axons from the __ nerve. prevertebral, vagus
Which autonomic plexus consists of postganglionic sympathetic axons from the aortic plexus and lumbar region of the sympathetic trunk and preganglionic parasympathetic axons from the pelvic splanchnic nerve? hypogastric plexus
Collections of sympathetic postganglionic axons, parasympathetic preganglionic axons, and some visceral sensory axons, that provide complex innervation to target organs are known as __ plexuses. autonomic
What are the subdivisions of the abdominal aortic plexus? celiac plexus, superior mesenteric plexus, inferior mesenteric plexus
The esophageal plexus provides parasympathetic axons to help regulate which reflex? the swallowing reflex
From the cardiac plexus: increased sympathetic activity __ heart rate and blood pressure, while increased parasympathetic activity __ heart rate. increases, decreases
Changes in autonomic tone typically involve one branch of the ANS ceasing activity, and the other increasing activity. T or F? false-only small changes in the activity of one branch are needed
What systemic changes accompany sympathetic stimulation? increased breathing rate, increased heart rate, increased blood pressure
Parasympathetic innervation from the vagus nerve causes the airways to __ (increase/decrease) in diameter. decrease
Stimuli associated with blood vessels or internal organs are detected by the __ sensory structures. autonomic
__ effects are seen when the parasympathetic and sympathetic nervous system have different effects that together produce a single, distinct result. cooperative
Created by: khinson
 

 



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