A&P1-Lecture; Ch 15 EOCQ
acts like the endogenous neurotransmitter by binding to its receptor
A drug is called an agonist if it ________.
nicotinic
A drug that affects both divisions of the autonomic system is going to bind to, or block, which type of neurotransmitter receptor?
short reflex
What is the term for a reflex that does NOT include a CNS component?
acetylcholine
What neurotransmitter will result in constriction of the pupil?
amygdala
What region of the limbic lobe is responsible for generating stress responses via the hypothalamus?
intermural ganglion
Which of the following is NOT a target of a sympathetic preganglionic fiber? intermural ganglion collateral ganglion adrenal gland chain ganglion
baroreception
Which of the following represents a sensory input that is NOT part of both the somatic and autonomic systems? vision taste baroreception proprioception
facial, CN VII
Which of these cranial nerves contains preganglionic parasympathetic fibers? optic, CN II facial, CN VII trigeminal, CN V hypoglossal, CN XII
sympathomimetic drug
Which type of drug could be used to treat asthma by opening airways wider?
muscarinic agonist
Which type of drug would be an antidote to atropine poisoning?
medial forebrain bundle
What central fiber tract connects forebrain and brain stem structures with the hypothalamus?
adrenal medulla
What gland produces a secretion that causes fight-or-flight responses in effectors?
cardiac accelerator nerve
What is another name for the preganglionic sympathetic fibers that project to the heart?
a-blocker (α-blocker)
Which kind of drug would have anti-anxiety effects?
optic
Which nerve projects to the hypothalamus to indicate the level of light stimuli in the retina?
acetylcholine decreases digestion
Which of the following is an incorrect pairing? norepinephrine dilates the pupil epinephrine increases blood pressure acetylcholine decreases digestion norepinephrine increases heart rate
hypothalamus
Which of these locations in the forebrain is the master control center for homeostasis through the autonomic and endocrine systems? hypothalamus thalamus amygdala cerebral cortex
increased stomach motility
Which of these physiological changes would not be considered part of the sympathetic fight-or-flight response? increased heart rate increased sweating dilated pupils increased stomach motility
acetylcholine
Which signaling molecule is MOST LIKELY responsible for an increase in digestive activity?
preganglionic parasympathetic
Which type of fiber could be considered the longest?