Egans cardio vascular review

Cardiovascular System Key Words
Term Definition
Afterload load against which an activated muscle must try to shorten; greater afterloads result in lower velocities.
Arteriovenous anastomosis communication between an artery and a vein, either as a congenital anomaly (capillaries), or as a surgically produced link between vessels.
Automaticity refers to the hearts ability to generate its own intrinsic electrical rhythm.
Barorecptors pressure-sensitive nerve endings in the walls of the atria of the heart, the vena cava, the aortic arch, and the carotid sinus.
Cardiac Output volume of blood pumped per minute by the heart.
Cardiac Tamponade compression of the heart caused by the collection of blood, fluid, or gas under pressure in the pericardium.
Chemoreceptors sensory nerve cells activated by changes in the chemical environment surrounding it; the chemoreceptors in the carotid artery are sensitive to PCO2 in the blood, signaling the respiratory center in the brain to increase or decrease ventilation.
Congestive heart failure an abnormal condition that reflects impaired cardiac output, caused by MI, ischemic heart disease, or cardiomyopathy.
Contractility property of muscle tissue to shorten in response to a stimulus, usually electrical.
end-diastolic volume (EDV) volume of blood remaining in the ventricles just prior to contraction.
end-systolic volume (ESV) volume of blood in the ventricles at the end of contraction (systole)
Respiratory Care Technology – Egan’s Chapter 9 – Test Bank
Egan’s Chapter 9
Cardiovascular System Key Words
Term Definition
Afterload load against which an activated muscle must try to shorten; greater afterloads result in lower velocities.
Arteriovenous anastomosis communication between an artery and a vein, either as a congenital anomaly (capillaries), or as a surgically produced link between vessels.
Automaticity refers to the hearts ability to generate its own intrinsic electrical rhythm.
Barorecptors…

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