How is the heart positioned?

How does the heart do?

The heart is a pump: its main function is to carry oxygen-rich blood to the rest of the body, to cells, tissues and organs, in order to nourish them, and to receive blood loaded with carbon dioxide to be sent to the lungs where the exchange takes place. with oxygen.

What is the main vein of the heart called?

Cardiac vein magna

It collects blood from the antero-superior part of the interventricular septum, from the obtuse edge of the heart and from the left atrium.

Why is the heart on the left?

We therefore work on both sides but the cells on the right are more numerous and exert greater pressure. It would be precisely for this reason that the heart in the end is on the left. This mechanism is of fundamental importance but unfortunately, in some cases, it gets stuck.

Where is the heart on the right or on the left?

In the center of the chest, the heart is placed slightly obliquely, with the upper apex pointing to the right and the lower apex pointing to the left.

The heart

Where does the pain in the heart feel?

chest pain, characteristic of heart attack, which corresponds to a sense of weight and constriction in the area on the back of the sternum and which radiates to the arms and base of the neck, especially to the left, as well as to the shoulder blades and mouth of the stomach.

What is the main artery?

The aorta artery is the largest arterial vessel in the human body.

What is the name of the vein that carries blood to the right atrium?

The right atrium is the first "station" of arrival of venous blood, poor in oxygen, taken from the cells, but rich in carbon dioxide.

What are the symptoms of blocked coronaries?

• Chest pain or chest pressure
• Pain which, from the chest, may radiate to the back, arm, shoulder, neck, jaw and / or stomach;
• Dyspnea, i.e. shortness of breath;
• Nausea with or without vomiting;
• Limitation of physical abilities. ...
• Profuse sweating;

How is the heart defined?

The heart is a muscular organ, which constitutes the motor center of the circulatory system and propulsor of blood and lymph in various animal organisms, including humans, in which it is formed by a particular tissue, the myocardium and is covered by a membrane , the pericardium.

What movements does the heart have?

The cardiac cycle is the work that the heart does. It is the succession of two repeated movements, systole and diastole, which are repeated about 70 - 80 times per minute at rest. Systole is the contraction phase, diastole is the relaxation phase.

How does the heart pump blood?

A valve allows blood to pass from the atrium to the ventricle but not vice versa. When the heart contracts, the blood that fills the ventricles is pushed, through two other valves, into the aorta artery starting from the left ventricle and into the pulmonary artery starting from the right ventricle.

What if the coronaries don't work?

Heart tissues that are not sufficiently supplied by the diseased coronary artery develop suffering. If this suffering persists and proper blood flow is not restored, the area of ​​heart tissue will die or "heart attack".

How long does the coronary angiography exam last?

With the injection of a small amount of contrast medium, the coronary branches are visualized and this allows to evaluate the presence or absence of narrowing points. The duration of the exam on average is about 30-40 minutes. The examination is not painful except for the anesthetic puncture.

How to check the status of the coronary arteries?

Coronary angiography, or coronary angiography, is a diagnostic test that, thanks to the use of a contrast medium and X-rays, allows to analyze in real time, on a monitor, the blood flow inside the coronary arteries.

What is the role of the right heart?

What is the function of the right ventricle? The right ventricle receives venous blood from the right atrium, rich in carbon dioxide, and directs it to the lungs to oxygenate before returning to the circulation and reaching the cells of the various tissues and organs of the human body.

What is meant by atrium?

In anatomy, the atria are the two upper cavities of the human heart and are placed above the two ventricles; they are separated by the atrial septum.

What are the blood vessels of the right heart?

The left and right coronary arteries branch off from the aorta (shortly after it leaves the heart) to supply the heart muscle with oxygenated blood. These two arteries divide further, giving rise to different branches, which are also the source of blood supply to the heart.

How are the arteries divided?

The arterial system of the human body can be divided into systemic arteries, which carry blood from the heart to the whole body, and pulmonary arteries, which carry blood from the heart to the lungs.

What makes an artery resistant and elastic?

For all these reasons, the walls of the arteries are very thick and made up of three layers: a monostratified epithelium called the endothelium, which lines the inner lumen, a layer of smooth muscle tissue and a connective layer in which collagen and elastin fibers abound. .

What is the largest artery?

How are they made and what is the activity of the aorta and systemic arteries? The aorta is the largest arterial vessel in the human body, capable of carrying four liters of blood per minute. It originates from the left ventricle of the heart, through the opening regulated by the aortic valve.

How come my heart hurts every now and then?

Smoking, high blood pressure, diabetes, obesity, sedentary lifestyle, high cholesterol are all risk factors for the heart which, if not prevented by a healthy lifestyle or treated, can cause this type of pathology.

How severe is the pain of a heart attack?

One of the most classic symptoms is severe pain in the chest, which is usually compressive, like a tightening vise. The pain often tends to radiate to the neck, jaw, jaw, shoulder, and left arm and can last for a long time.

What are the warning signs of a heart attack?

Tiredness, tachycardia, stomach pain and sweating are symptoms of a heart attack that should not be underestimated. Myocardial infarction is one of the most frequent causes of access to the emergency room and is one of the main causes of death in industrialized countries.

What are the risks of coronary angiography?

Like any cardiac catheterization procedure, coronary angiography can involve risks and contraindications: perforation of the arteries through which the catheter passes; myocardial infarction: heart attack usually occurs due to a thrombus (blood clot) occluding a coronary artery.