chapter 14

Question 0

Aortic aneurism

Answer 0

A weakness in the wall of the aorta that makes it susceptible to rupture

Question 1

Aorta

Answer 1

The main artery, which receives blood from the left ventricle and delivers it to all the other arteries that carry blood to the tissues of the body

Question 2

Aortic valve

Answer 2

The one way valve that lies between the left ventricle and the aorta and keeps blood from flowing back into the left ventricle after the ventricle ejects its blood into the aorta; one of four valves

Question 3

Arrhythmia

Answer 3

An irregular or abnormal heart rhythm

Question 4

Asystole

Answer 4

The complete absence of heart electrical activity

Question 5

Atherosclerosis

Answer 5

A disorder in which cholesterol and calcium build up inside the walls of blood vessels, eventually leading to partial or complete blockage of blood flow

Question 6

Atrium

Answer 6

One of two (right and left) upper chambers of the heart. The right receives blood from the vena cava and delivers to the right ventricle. The left atrium receives blood from pulmonary veins and delivers it to the left ventricle

Question 7

Automaticity

Answer 7

The ability of cardiac muscle cells to contract without stimulation from nervous system

Question 8

Autonomic nervous system

Answer 8

The part of the nervous system that controls the involuntary activities of the body such as the heart rate, blood pressure, and digestion of food