Which of the following does not describe the ANS?
a system of motor neurons that innervates all muscle cells
Preparing the body for the "fight-or-flight" response is the role of the ________.
sympathetic nervous system
Cardiovascular effects of the sympathetic division include all except ________.
dilation of the blood vessels serving the skin and digestive viscera
What differentiates an autonomic reflex from a somatic reflex?
a two-neuron motor pathway
Because many of the same cardiac cells are innervated by both parasympathetic and sympathetic fibers, the influence of the two divisions on the heart is synergistic.
The two divisions of the autonomic nervous system (ANS) normally have a(n) __________ relationship.
Which division of the nervous system has short preganglionic neurons?
The two types of receptors that bind acetylcholine are __________ and __________ receptors.
decrease heart rate and blood pressure
Which autonomic neurons release norepinephrine as a neurotransmitter?
sympathetic postganglionic neurons
The craniosacral division is another name for the parasympathetic division.
Acetylcholine is the substance released by the axonal endings of the somatic efferent fibers and by the parasympathetic nerve fiber endings.
Emotions influence autonomic reactions primarily through integration in the ________.
All visceral organs receive dual innervation from both the sympathetic and parasympathetic divisions of the ANS.
The sympathetic and parasympathetic divisions of the ANS have the same effect on most body organ systems.
The "resting and digesting" division of the autonomic nervous system is the ________.
Norepinephrine-releasing fibers are called cholinergic fibers.
Thermoregulatory responses to increased heat are mediated by the sympathetic nervous division.
Control of temperature, endocrine activity, and thirst are functions associated with the ________.
The autonomic nervous system may cause activation or inhibition, depending on the division that is active and the target that is affected.
Which of the following is responsible for the overall integration of the autonomic nervous system (ANS)?
Which of the following is NOT associated with the parasympathetic division of the autonomic nervous system (ANS)?
Sympathetic responses generally are widespread because ________.
NE and epinephrine are secreted into the blood as part of the sympathetic response
Which of the following is NOT an autonomic nervous system (ANS) effector?
For which of the following activities is the parasympathetic nervous system generally responsible?
resting and digesting