Ch. 15 reading quiz (autonomic nervous system)

which signaling molecule is most likely responsible for an increase in digestive activity? a. acetylcholine b. adrenaline c. epinephrine d. norepinephrine

A. acetylcholine

which of the following is not a target of a sympathetic preganglionic fiber? a. intermural ganglion b. adrenal gland c. collateral ganglion d. chain ganglion

A. intermural ganglion

what is the term for a reflex that does not include a CNS component? a. short reflex b. visceral reflex c. somatic reflex d. long reflex

A. short reflex

what gland produces a secretion that causes fight-or-flight responses in effectors? a. thymus b. adrenal medulla c. salivary gland d. reproductive gland

B. adrenal medulla

which of these locations in the forebrain is the master control center for homeostasis through the autonomic and endocrine systems? a. amygdala b. hypothalamus c. thalamus d. cerebral cortex

B. hypothalamus

which type of fiber could be considered the longest? a. postganglionic sympathetic b. preganglionic parasympathetic c. postganglionic parasympathetic d. preganglionic sympathetic

B. preganglionic parasympathetic

which of the following is an incorrect pairing? a. norepinephrine dilates the pupil b. epinephrine increases blood pressure c. acetylcholine decreases digestion d. norepinephrine increases heart rate

C. acetylcholine decreases digestion

what is the term used to describe any exogenous substance that binds to a receptor and produces an opposing effect to the endogenous ligand? a. terminal b. synergist c. antagonist d. mesenteric

C. antagonist

what is another name for the preganglionic sympathetic fibers that project to the heart? a. vasomotor nerve b. solitary tract c. cardiac accelerator nerve d. vagus nerve

C. cardiac accelerator nerve

which of these cranial nerves contains preganglionic parasympathetic fibers? a. optic, CN II b. hypoglassal, CN XII c. facial, CN VII d. trigeminal, CN V

C. facial, CN VII

which nerve projects to the hypothalamus to indicate the level of light stimuli in the retina? a. glossopharyngeal b. vagus c. optic d. oculomotor

C. optic

what neurotransmitter will result in constriction of the pupil? a. serotonin b. norepinephrine c. epinephrine d. acetylcholine

D. acetylcholine

what region of the limbic lobe is responsible for generating stress responses via the hypothalamus? a. hippocampus b. mammillary bodies c. prefrontal cortex d. amygdala

D. amygdala

which of the following represents a sensory input that is not part of both the somatic and autonomic systems? a. proprioception b. vision c. taste d baroreception

D. baroreception

which of these physiological changes would not be considered part of the sympathetic fight-or-flight response? a. increased sweating b. increased heart rate c. dilated pupils d. increased stomach motility

D. increased stomach motility