define structure of
of heart?
please give me it,s long answer. i will give you brilliant
Answers
Answer:
The heart is divided into four chambers consisting of two atria and two ventricles; the atria receive blood, while the ventricles pump blood. The right atrium receives blood from the superior and inferior vena cavas and the coronary sinus; blood then moves to the right ventricle where it is pumped to the lungs.
Answer:
The structure of the human heart includes the following key components:
Chambers:
Two atria (singular = atrium) – smaller chambers near top of heart that collect blood from body and lungs.
Two ventricles – larger chambers near bottom of heart that pump blood to body and lungs.
Heart Valves:
Atrioventricular valves (between atria and ventricles) – bicuspid valve on left side ; tricuspid valve on right side.
Semilunar valves (between ventricles and arteries) – aortic valve on left side ; pulmonary valve on right side.
Blood Vessels:
Vena cava (inferior and superior) feeds into the right atrium and returns deoxygenated blood from the body.
Pulmonary artery connects to the right ventricle and sends deoxygenated blood to the lungs
Pulmonary vein feeds into the left atrium and returns oxygenated blood from the lungs.
Aorta extends from the left ventricle and sends oxygenated blood around the body.