Describe the flow of bloodthrough the heart of human being
Answers
Answer:
Heart is divided into four chambers: two upper chambers are called the left and right auriclesand two lower chambers are called left and right ventricles.A muscular septum divides the heart into left and right heart. In right half, deoxygenated blood flows and simultaneously oxygenated blood flows in the left half.Arteries carry oxygenated blood while veins carry deoxygenated blood.
Blood flow in heart in one directiononly. Sets of valves close to prevent the backflow of blood. The atrio- ventricular or AV valvesprevent blood from returning to atria when ventricles contract. The semilunar valves guard the opening to the pulmona...
Pulmonary circulation involves the movement of blood from heart to lungs and back to heart again.Systemic circulation carries oxygenated blood away from the heart to the body, and returns deoxygenated blood back to the heart. Thus, blood flows through the heart twice.
Portal circulation occurs when a capillary bed drains into another capillary bed through veins, without first going through the heart.Hepatic portal system carries blood from the GI tract and spleen to the liver before it enters the inferior vena cava and the general circulation.
Please mark my answer as brainliest if you think it is perfect.
Thank you !!!!
Answer:
pathway1
oxygenated blood flows from lung towards the heart
This blood is enters the left atrium through pulmonary vein
left atrium expannds itself while collecting blood
Left atrium transfers the blood to the left ventricle . The left ventricle expands
Left ventricle then passes the blood into aorta which pumps out the blood to the whole body
Pathway 2
Deoxygenated blood flows from the body back to heart.
This blood is first collected by the right atrium
Right atrium transfers blood to the right ventricle
Right ventricle passes the blood to lungs through pulmonary aretery for oxygenation.