Term
| What part of the vertebrate nervous system innervates smooth and cardiac muscle and glandular tissues and governs involuntary, vital functions? |
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Definition
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Term
| If we follow a nerve impulse from the CNS to an effector within the SNS, how many motor neurons would be involved? |
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Definition
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Term
| If we follow a nerve impulse from the CNS to an effector within the ANS, how many motor neurons would be involved? |
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Definition
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Term
| A motor neuron within the ANS that lies between the CNS and a ganglion is what type of neuron? |
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Definition
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Term
| A motor neuron within the ANS that lies between a ganglion and an effector is what type of neuron? |
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Definition
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Term
| What is the axon of a ganglionic neuron within the ANS? |
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Definition
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Term
| What are the two divisions of the ANS? |
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Definition
Parasympathetic
Sympathetic |
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Term
| What division of the ANS is primarily concerned with conserving energy and replenishing nutrient stores and has been nicknamed the “rest-and-digest” division? |
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Definition
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Term
| What division of the ANS is primarily concerned with preparing the body for emergencies and is often referred to as the “fight-or-flight” division? |
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Definition
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Term
| What is another term for the parasympathetic division? |
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Definition
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Term
| Where are the cell bodies of the preganglionic neurons for the parasympathetic division located? |
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Definition
Brainstem
Gray regions of S2-S4 spinal cord segments |
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Term
| Where are the ganglia of the parasympathetic division found? |
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Definition
| Next to or within the organs they innervate |
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Term
| What cranial nerves carry parasympathetic fibers? |
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Definition
CN III-Oculomotor
CN VII-Facial
CN IX-Glossopharyngeal
CN X-Vagus |
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Term
| The parasympathetic division innervates what structures through the oculomotor nerve? |
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Definition
Ciliary muscle
Pupillary constrictor muscle of the iris |
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Term
| The parasympathetic division innervates what structures through the facial nerve? |
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Definition
Lacrimal gland
Nasal mucosa
Submandibular and sublingual salivary glands |
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Term
| The parasympathetic division innervates what structures through the glossopharyngeal nerve? |
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Definition
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Term
| The parasympathetic division innervates what structures through the vagus nerve? |
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Definition
Airways
Heart
Abdominal Viscera |
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Term
| What specific regions of the spinal cord house the cell bodies of the parasympathetic division of the ANS? |
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Definition
| Lateral gray regions of the S2-S4 spinal cord segments |
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Term
| What nerves carry fibers of the parasympathetic division of the ANS through the pelvis? |
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Definition
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Term
| What does "splanchnic" mean? |
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Definition
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Term
| You miss lunch and only have time for a bag of chips. What division of the ANS brings about an increase in the production of saliva as you eat? |
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Definition
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Term
| You walk from a relatively dim building into the brightness of a sunny winter’s day. Your pupils constrict. What division of the ANS brings about this constriction? |
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Definition
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Term
| A test in the Testing Center takes longer than you anticipated. Now you’re late for your next class. You jog. You arrive and settle into your seat. The airways in your lungs constrict was you catch your breath. What division of the ANS brings about this constriction? |
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Definition
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Term
| A bit of dirt gets blown into your eye. Tears flow. What division of the ANS brings about the flow? |
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Definition
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Term
| What is another term for the sympathetic division of the ANS? |
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Definition
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Term
| From what regions of the CNS does the sympathetic division arise? |
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Definition
| The lateral horns of the T1-L2 regions of the spinal cord |
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Term
| What part of spinal nerves do the preganglionic sympathetic axons travel within as they leave the lateral horn of the spinal cord? |
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Definition
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Term
| What sympathetic ganglia lie on the left and right sides of the vertebral column from T1-L2? |
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Definition
| Sympathetic trunk (paravertebral or chain) ganglia |
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Term
| What structure of the sympathetic division of the ANS has the appearance of a pearl necklace? |
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Definition
| Sympathetic Trunk (paravertebral or chain) ganglia |
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Term
| What clusters of ganglia of the sympathetic division of the ANS lie within the neck? |
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Definition
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Term
| What are the connections between the spinal nerves and the sympathetic trunks? |
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Definition
Rami Communicantes
(Communicating Rami) |
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Term
| What structures carry preganlionic sympathetic axons from the sympathetic trunk to the spinal nerves? |
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Definition
Gray Rami Communicantes
(Gray Rami) |
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Term
| What structures are composed of preganglionic axons that do not synapse in a sympathetic trunk ganglion? |
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Definition
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Term
| Splanchnic nerves of the sympathetic division of the ANS terminate in what structures? |
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Definition
| Prevertebral (collateral) ganglia |
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Term
| What structures are singula rather than paired, are anterior to the vertebral column, and are located only in the abdominal cavity? |
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Definition
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Term
| List the three prevertebral ganglia. |
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Definition
Celiac Ganglion
Superior Menenteric Ganglion
Inferior Mesenteric Ganglion |
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Term
| What pathway is a postganglionic axon within if it travels through a gray ramus that is at the level as the ganglionic neuron to innervate blood vessels or arrector pili muscles or swear glands? |
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Definition
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Term
| What pathway is a postganglionic axon within if the preganglionic neuron synapses with a ganglionic neuron in a sympathetic trunk ganglion, but the postganglionic axon does not leave? |
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Definition
| Postganglionic sympathetic nerve pathway |
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Term
| What pathway is a postganglionic axon within if it passes through the wympathetic trunk ganglia without synapsing and extends to the prevertebral ganglia? |
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Definition
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Term
| What pathway is a sympathetic zxon within if it goies to the adreal medulla? |
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Definition
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