Many readers are interested in the pertinent topic of knowing the structure and function of the about Heart. I am happy to point this out correctly. Our author has already surveyed current research on the about Topics of interest. We provide a wide range of answers based on the latest medical reports, advanced research papers, and sample studies. Repeat for further study.
Knowledge of your heart structure and its function It helps to understand how this vital organ works to pump blood throughout the body. But it is only as large as a human fist, the heart It is a strong muscle located inside the chest and is cone-shaped with a pointed left side.
Structure of the Heart
Heart structure and function They are closely related, as described below.
1. pericardium
This is the fibrous covering that surrounds the heart and holds it in place. the heart and holds it in place. In this particular membrane, there is still fluid that lubricates it the heart inserted into the pericardial cavity or heart cavity to prevent friction. The pericardium has two layers, consisting of the visceral layer, specifically the embryonic layer the heart And the wall layer, which forms a sac of fluid in the pericardial cavity.
2. the wall of the heart
The wall of the heart It is composed of three layers: the
- Epicardium, or outer layer the heart This is a thin layer of membrane that lubricates and protects the outer portion of the heart. the heart .
- Myocardial layer, or muscle layer. the heart The wall is made up of muscle tissue. It consists mostly of the thickness the heart responsible for the operation of the pump. the heart .
- Endocardium, or the innermost layer that covers the inner leaflet of the heart heart It is a smooth coating that secretes blood and does not adhere the heart It prevents the formation of potentially harmful blood clots.
3. heart cam
The heart has four chambers:
- The correct chest
- Left atrium
- Right ventricle
- Left ventricle
The atria are smaller than the ventricles and have elegant, less muscular walls. They are chambers that receive the blood and are composed of the heart large veins. The ventricles are larger, more muscular cavities that push blood into the circulation. They are connected to huge arteries that carry blood into the circulation.
The right atrium and right ventricle are smaller than the actual left ventricle. They have less wall muscle than the left side. the heart The difference in field volume relates to them. functions Blood in the right side of the field the heart blood is pumped into the pulmonary circulation and blood is pumped out of the left video chamber to the rest of the body.
4. blood vessels
These are the tubes that carry blood to different parts of the body.
- Arteries carry oxygen-rich blood from the arteries. the heart to the rest of the body. The very largest artery is the aorta. the heart And the branches are the smallest.
- The veins return deoxygenated blood to the aorta. the heart It is via the vena cava, the incomparably large vein, which leads to the right atrium.
- Capillaries are microscopic blood vessels connecting arteries and veins.
5. valves.
These are fibrous tissues located between the cardiac cavities and within the veins. They act as gates that allow oblique flow and prevent backflow of blood flow.
- Atrioventricular valves are located between the atria and ventricles of the heart. The valve between the right atrium and ventricle is considered the tricuspid valve; the valve between the left atrium and ventricle is called the mitral valve.
- The semimembranous valve is located between the ventricles and the large arteries. The aortic valve is between the left ventricle and the aorta, and the pulmonary valve is between the right ventricle and the pulmonary artery.
Watch the video below to learn more. the heart structure and function In a more eye-catching way:.
Cardiac Function
Now, to explain the heart’s difficulties in more detail, structure and function :
The heart Blood is pumped to the pulmonary and systemic circuits.
- Pulmonary circuit. Deoxygenated blood from the right ventricle enters the pulmonary artery and travels to the nonpulmonary veins, where it receives air and collects carbon dioxide. After this, the air-blood is returned to the left atrium through the pulmonary vein.
- Systemic circuit. Oxygenated blood is pumped from the left ventricle into the systemic circulation via the aorta, which branches off into smaller arteries and capillaries to supply oxygen to other parts of the body. Oxygen-deprived blood is returned to the veins from various organs and tissues. the heart The vena cava and veins pour into the right atrium.
Cardiac Cycle
Heart structure and function Another way to think about the cardiac cycle: the The heart ‘s main function It is the pumping of blood into the circulation. This is accomplished by a series of contractions (systole) and relaxation (diastole). the heart muscles that collide with each other in a rhythmic or repetitive pattern.
The atrial cycle is described in the following sequence
Stage 1 – Atrial Systole/ Ventricular Diastole
The right atrium, filled with circulating blood, contracts, allowing blood to flow to the relaxed right ventricle where the tricuspid valve has not closed. At about the same time, blood from the left atrium, coming from the non-tricuspid valve, flows into the left ventricle through the faithful mitral valve. As this point is approached, the valves of the vena cava and pulmonary veins close, preventing backflow of blood flow.
Phase 2 – Ventricular Contraction/ Atrial Diastole
After contraction, the chest relaxes, the atrioventricular valves approach close together, simultaneously drawing the chambers of the heart with the highest pressure, blood is pumped into the non-pulmonary chambers via the pulmonary artery, and blood is pumped into the large circulatory circle. Via the aorta.
Phase 3 – Ventricular Diastole/ Atrial Diastole
After pumping blood, the ventricles relax and close the pulmonary and aortic valves to prevent regurgitation. During relaxation, the right and left chests fill and the entire cycle begins again.
The heart cycle causes a heartbeat. This usually takes a minimum of seconds. You heart rate or number of heart The number of strokes per minute depends on your energy level, so the speed is lower at rest and faster during exercise.
Heartfish
Here is some information about heart structure and function :
- The human heart is just roughly about the size of a fist.
- Your heart weighs about 10-12 ONS (or 280-340 grams) if you are male 8-10 US (or 230-280 grams) if you are female.
- In an adult, the heart Average 60-80 hits per minute.
- The newborn’s heart Saves faster than adults. heart , at about 70-190 strokes per minute.
- Your heart On average, 100,000 beats per day. or about 3 billion strokes in a lifetime.
- Your heart pumps about There are 5-6 liters of blood in the body.
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