18 Questions
Which part of the brain is responsible for regulating autonomic and endocrine function?
Hypothalamus
What is the primary effect of nicotine on the autonomic nervous system?
Increases sympathetic tone
Which drug category enhances adrenergic function by binding to receptors and increasing norepinephrine production and release?
Sympathomimetic drug
What is the role of the medulla in the autonomic nervous system?
Cardiovascular center
In which part of the brain is the limbic lobe located?
Queen Amygdala
What is the effect of a sympatholytic drug on the autonomic nervous system?
Interrupts sympathetic activity
What is the second signaling molecule in the adrenergic synapse?
Epinephrine
Which receptors does norepinephrine bind to in the adrenergic synapse?
Alpha and beta adrenergic receptors
What type of reflex is afferent branch into the spine or brain?
Long reflex
What does the autonomic system use to react to stretch stimuli in the aorta and carotid arteries?
Baroreceptors
Which nervous system has a short reflex based on distention of the stomach?
Enteric nervous system
Without the parasympathetic signal, what would the heart rate be?
$100$ bpm
Which division of the autonomic nervous system is responsible for the 'fight or flight' response?
Sympathetic division
Where do sympathetic signals originate from in the thoracolumbar system?
Thoracic and superior lumbar nerves
What type of fibers are postganglionic fibers in the sympathetic division?
Long, unmyelinated
Which ganglia are part of the enteric nervous system in the sympathetic division?
Collateral ganglia
What is the function of the intramural ganglia in the parasympathetic division?
To be on or near the target effector
What is the characteristic of preganglionic fibers in the parasympathetic division located in the brain?
Short, myelinated
This quiz covers the divisions of the autonomic nervous system, focusing on the sympathetic and parasympathetic divisions. It includes information about their functions, control over organs and systems, and the thoracolumbar system's role in the sympathetic division.
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