Cardiac muscle tissue has autorhythmicity, the unique ability to initiate a cardiac action potential at a fixed rate—spreading the impulse rapidly from cell to cell to trigger the contraction of the entire heart.

Jun 3, 2026 · heart, organ that serves as a pump to circulate the blood. It may be a straight tube, as in spiders and annelid worms, or a somewhat more elaborate structure with one or more receiving …

3 days ago · The meaning of CARDIAC is of, relating to, situated near, or acting on the heart. How to use cardiac in a sentence.

Aug 13, 2024 · Coronary artery disease is a common heart condition that affects the major blood vessels that supply the heart muscle. A buildup of fats, cholesterol and other substances in and on the artery …

Cardiac arrest is typically identified by the absence of a central pulse and abnormal or absent breathing. [1] Cardiac arrest and resultant hemodynamic collapse often occur due to arrhythmias (irregular …

Jan 26, 2024 · What is the heart? The heart is a fist-sized organ that pumps blood throughout your body. It’s your circulatory system ’s main organ. Muscle and tissue make up this powerhouse organ. Your …

Sep 19, 2025 · Heart disease can lead to a heart attack, heart failure, cardiac arrest, stroke and organ damage. Healthy habits, medicines and procedures can prevent or treat CAD and other heart diseases.

1. pertaining to the heart. 2. pertaining to the ostium cardiacum. cardiac arrest sudden and often unexpected stoppage of effective heart action.

CARDIAC definition: 1. of the heart or heart disease: 2. a cardiac arrest (= a heart attack): 3. of the heart or….

Jan 10, 2024 · Cardiovascular disease (CVD) can refer to many conditions: Heart and blood vessel disease, also called heart disease, includes numerous problems, many of which are related to …