Please enable JavaScript.
Coggle requires JavaScript to display documents.
4.2 key terms (heart rate (A measure of cardiac activity usually expressed…
4.2 key terms
-
pulse
The rhythmic expansion and recoil of arteries resulting from heart contraction; can be felt from the outside of the body.
carotid pulse
The carotid sinus, or carotid bulb, is a widening of a carotid artery at its main branch point. The carotid sinus contains sensors that help regulate blood pressure. The carotid artery pulse can normally be felt in the neck by pressing the fingertips against the side of the windpipe, or trachea.
-
blood pressure
Pressure exerted by the blood upon the walls of the blood vessels, especially arteries, usually measured by means of a sphygmomanometer and expressed in millimeters of mercury.
-
-
-
-
-
-
pacemaker
An electrical device for stimulating or steadying the heartbeat or reestablishing the rhythm of an arrested heart.
sinoatrial (SA) node
A small mass of tissue that is made up of Purkinje fibers, ganglion cells, and nerve fibers, that is embedded in the musculature of the right atrium, and that originates the impulses stimulating the heartbeat -- called also S-A node, sinus node.
-
-
bundle branches
offshoots of His in the heart ventricle. they play an integral role in the electrical conduction of the heart and transmits cardiac action potentials from the bundle of His to the purkinje fibers.
-