Human Heart- The heart is located in the thoracic cavity. It is enclosed in a thin double plexus, which is called the heart cover or pericardium. This is called cardiac fluid or pericardial fluid. It protects the heart from external bumps. The weight of the heart is about 300 grams and the shape is like a cone.
External Structure of the Heart
The human heart is a dark red colored triangular fleshy structure. It consists of four chambers. its front wide part atrial fibrillation (auricle) part and posterior part ventricles (ventricle) part. atrial and ventricle Board (septum) into right and left auricle and ventricle. So in the heart of man Chamber There are. two atrial fibrillation and two ventricles , two anterior venules from the front of the body and One Pashch Mahashira Bringing impure blood from the back of the body, it opens into the right auricle.
Pulmonary veins open in the left auricle which bring pure blood from the lungs. Thus impure blood collects in the right atrium and pure blood in the left atrium.
a thick duct from the right ventricle pulmonary aorta or aorta Comes out. It quickly divides into two pulmonary or pulmonary arteries and carries impure blood to the lungs for oxygenation. A thick tube called the carotico-systemic aorta originates in the left atrium. The aorta carries pure blood to different parts of the body.
The four chambers are clearly visible in the internal structure of the heart. There are three openings in the right atrium through which the pre and post canals open. Between these holes is a valve and a node. The heart beat is conducted from the node. The left atrium has an oblique opening through which the pulmonary vein opens.
right atrium one in your lower right ventricle atrioventricular orifice (auriculo-ventricular aperture). one on this hole trivalan (tricuspid) valve is attached which hangs towards the ventricles. This valve is attached to the inner surface of the ventricles by fine fibers. Similarly the left atrium also opens below it through an opening in the left ventricle. one on this hole double fusion (bicuspid) The valve is attached. which opens into the ventricles.
1. Carries the pure blood from the lungs to every part of the body and sends the impure blood from there to the lungs to purify it.
2. The function of the heart is to control the pumping of blood, to maintain regular motion and also to maintain coordination in different parts of the heart.
3. The blood flow by the heart occurs in the form of a regular wave, due to which a heartbeat is created in the vein.
fact of heart
, Heart beats 72 times in 1 minute.
• The heart beats even after separation from the body as long as it is getting enough oxygen because it has its own electric impulse.
, Babies born have the fastest rate (70-160 beats/minute) and slowest in old age (30-40 beats/minute).
What does the heart do?
The main function of the heart is to pump blood, the heart transports blood throughout the body. It contracts so that blood keeps coming back into the heart and when it is in place, it is pumped out or the process is always done by the heart.
When does the heart rest?
The truth is that the heart never rests but when we are sleeping. So there is some stability in its work. It can be called resting of the heart.
How many valves are there in the heart?
Human heart has four valves
How many parts does the heart have?
The heart is divided into two parts, the right and the left, which are called the atrium and the ventricle (atrium and ventricle).
where does impure blood live
The impure blood comes to the heart through the veins.
What is the weight of human heart?
The weight of the human heart is 300 to 350 grams and that of women is 250 grams to 300 grams.
What are the atria and ventricles called?
The heart has 4 chambers, the upper two chambers are called the atria and the lower two chambers are called the ventricles.
what is the length and width of the heart
The length of the heart is 13 cm and width is 9 cm, which is a red colored triangle.
How many times does a human heart beat in 1 minute?
Human heart beats about 70 to 90 times in 1 minute.
How many times does a human heart beat in a day?
Human heart beats about 100,000 times in a day.