involuntary nervous system
41Attack, vasovagal — A reflex of the involuntary nervous system called the vasovagal reaction that leads the heart to slow down (bradycardia) and, at the same time, it affects the nerves to the blood vessels in the legs permitting those vessels to dilate (widen). The …
42Beta adrenergic blocking drugs — A class of drugs, also called beta blockers, that block beta adrenergic substances such as adrenaline (epinephrine), a key agent in the sympathetic portion of the autonomic (involuntary) nervous system. By blocking the action of the sympathetic… …
43Blocker, beta adrenergic — A class of drugs, also more simply called beta blockers, that block beta adrenergic substances such as adrenaline (epinephrine), a key agent in the sympathetic portion of the autonomic (involuntary) nervous system. By blocking the action of the… …
44Blockers, beta — A class of drugs that block beta adrenergic substances such as adrenaline (epinephrine), a key agent in the sympathetic portion of the autonomic (involuntary) nervous system. By blocking the action of the sympathetic nervous system on the heart,… …
45Coughing syncope — The temporary loss of consciousness upon coughing. Syncope is the temporary loss of consciousness or, in plain English, fainting. The situations that trigger this reaction are diverse and include having blood drawn, straining while urinating… …
46Cutis anserina — Better known as goose bumps, a temporary local change in the skin when it becomes rougher due to erection of little muscles, as from cold, fear, or excitement. The chain of events leading to this skin change starts with a stimulus such as cold or …
47Defecation syncope — The temporary loss of consciousness upon defecating (having a bowel movement). Syncope is the temporary loss of consciousness or, in plain English, fainting. The situations that trigger this reaction are diverse and include having blood drawn,… …
48Goose bump — A temporary local change in the skin when it becomes rougher due to erection of little muscles, as from cold, fear, or excitement. The chain of events leading to this skin change starts with a stimulus such as cold or fear. That stimulus causes a …
49Gooseflesh — A temporary local change in the skin when it becomes rougher due to erection of little muscles, as from cold, fear, or excitement. The chain of events leading to this skin change starts with a stimulus such as cold or fear. That stimulus causes a …
50Gower syndrome (situational syncope) — The temporary loss of consciousness in particular kinds of situations. (Syncope is temporary loss of consciousness or, in plain English, fainting). The situations that trigger this reaction are diverse and include having blood drawn, straining… …
