Which of the following is TRUE about the high-threshold, nociceptive (pain-mediating) extrinsic sensory neurons that innervate the viscera?  they are part of the parasympathetic nervous system   they are not part of the autonomic nervous system at all   they are part of the sympathetic nervous system   they are part of both the sympathetic and parasympathetic nervous systems   they are part of the enteric nervous system

Visceral sensory (afferent) neurons:Group of answer choicesare responsible for providing information to the CNS about stretch, distension and/or noxious stimuli associated with the visceraare responsible for referred pain because they have branches that also innervate somatic tissuesinnervate the heart where they increase activity in the SA noderefer pain to visceratravel mostly with components of the parasympathetic nervous system

True or False QuestionMost organs are innervated by either the sympathetic nervous system or the parasympathetic nervous system, but not both.True false question.TrueFalse

In which way are the sympathetic and parasympathetic divisions of the autonomic system similar?Multiple ChoiceBoth utilize two neurons per message.In both, the preganglionic neuron is shorter than the postganglionic neuron.Both use norepinephrine as their neurotransmitter.Both arise from the sacral spinal nerves.Both are associated with the relaxed state (rest-and-digest).

The autonomic nervous system can be readily divided into:Group of answer choicesfour divisions: – the sympathetic, parasympathetic, enteric and vagal sensorytwo divisions – the sympathetic and parasympatheticfive divisions – the sympatethetic, parasympathetic, enteric, spinal sensory and vagal sensoryfour divisions – the sympathetic, parasympathetic, enteric and spinal sensorythree divisions – the sympathetic, parasympathetic and enteric

Question 51 ptsWhich of the following statements is INCORRECT about the structure of the autonomic nervous system?Group of answer choicesparasympathetic pre-ganglionic neurons are located mostly in the thoracic and lumbar spinal cordssympathetic pre-ganglionic nerve cell bodies lie mostly in the intermediolateral cell column in the spinal cordsympathetic pre-ganglionic axons exit the spinal cord through the ventral rootsaxons from sympathetic pre-ganglionic neurons synapse onto sympathetic post-ganglionic neuronspre-ganglionic parasympathetic and pre-ganglionic sympathetic neurons use acetylcholine as their main fast neurotransmitter