How does blood flow in the heart

Blood keeps flowing in the blood vessels, which is also an important reason for maintaining good health. Blood can provide nutrients and maintain human physiological functions. When blood flows from the heart, it flows from the right atrium to the right ventricle, and then to the pulmonary artery, etc. When some diseases occur, it may lead to insufficient blood supply to the heart, which is relatively harmful to people. The most common one is coronary atherosclerosis.

How blood flows in the heart

Blood flows from the right atrium into the right ventricle, from the right ventricle into the pulmonary artery, and then into the lungs to complete gas exchange. Blood flows from the lungs into the left atrium, and then from the left atrium into the left ventricle. Blood is ejected from the left ventricle to the aorta and into various organs throughout the body. After completing gas exchange, it flows from various organs into the right atrium, and this process is repeated.

Symptoms of myocardial insufficiency

The common cause of myocardial insufficiency is coronary atherosclerosis, followed by inflammation (rheumatic, syphilitic, Kawasaki disease and vascular occlusive vasculitis, etc.), spasm, embolism, connective tissue disease, trauma and congenital malformations. Important risk factors associated with atherosclerosis are hyperlipidemia, hypertension, diabetes, smoking, obesity, elevated homocysteine, lack of physical activity, advanced age, and male gender.

Myocardial insufficiency often occurs after the age of 40, with an average prevalence of about 6.49%. Currently, the prevalence of myocardial ischemia in our country is increasing year by year. Myocardial ischemia is a common and frequently occurring disease among middle-aged and elderly people. Common symptoms include:

1. When tired or mentally stressed, dull pain or tightening pain may occur behind the sternum or in front of the heart, and radiate to the left shoulder and left upper arm. It lasts for 3 to 5 minutes and then resolves on its own after rest. In severe cases, it may be accompanied by sweating.

2. Chest tightness, palpitations, and shortness of breath occur during physical activity and are relieved on their own during rest.

3. Exercise-related sore throat, burning sensation, tightness, toothache, etc.

4. Chest pain and tightness occur after a full meal, cold weather, or drinking.

5. When the pillow is low when sleeping at night, you will feel chest tightness and shortness of breath, and you need to lie in a high pillow to feel comfortable; if you suddenly have chest pain, palpitations, and difficulty breathing when you are sleeping soundly or lying flat during the day, you need to sit up or stand up immediately to relieve the pain.

6. Feeling anxious, chest tightness, shortness of breath, or chest pain during sexual intercourse or straining to have a bowel movement.

7. Sudden bradycardia, low blood pressure or syncope.