The semilunar valves stop the back flow of blood into the heart. There is a semilunar valve where the aorta leaves the left ventricle and another where the pulmonary artery leaves the right ventricle.

Discover the warning signs of circulatory problems, from buttock pain to slow-healing wounds, plus the foods and activities ...

When the heart contracts it pushes ... number is the diastolic value. Blood pressure is determined by Q (cardiac output) and the resistance to the blood flow (R). Resistance to blood flow is ...

Tech expert Kurt “CyberGuy" Knutsson talks about how the first nonstop beating heart transplant, called zero ischemic time, ...

Discover how regular sauna bathing improves heart health through 7 mechanisms, from lower blood pressure to reduced ...

Researchers have developed cutting-edge MRI technology to diagnose a common heart problem more quickly and accurately than ever before. Aortic stenosis is a progressive and potentially fatal condition ...

Indeed, previous research suggests that poor blood flow regulation in leg muscle may show up before similar changes in the heart, and could even explain symptoms like fatigue or difficulty exercising.

When this system gets activated repeatedly ... of heart attacks and strokes as narrowed arteries can impact blood flow to the heart.

Dr. Jeremy London highlights the significant health advantages of nasal breathing over mouth breathing. Breathing through the ...