Question

Trace the pathway of a red blood cell which starts in the coronary artery and ends in the aorta. not all of the cards must be used in the final answer.

Answer 1

Erythrocytes or red blood cells are the most numerous blood structures. In the blood of humans there is an average amount of 5,000,000 red blood cells per mm3. This means that in the whole organism has a total of approximately 25 billion erythrocytes.

Erythrocytes are red because each one contains about 250,000,000 molecules of one red protein called hemoglobin.

Immature red blood cells are cells with nucleus, but when they mature they lose their core, and therefore also lose the ability to reproduce. At approximately 130 days after they originated, they are destroyed in the liver or spleen.

Step-by-step explanation:

The blood path begins in the left ventricle of the heart, loaded with oxygen, and extends through the aorta and its arterial branches to the capillary system, where veins containing oxygen-poor blood are formed. These flow into the two cava veins (upper and lower) that drain into the right atrium of the heart.

The oxygen-poor blood starts from the right ventricle of the heart through the pulmonary artery that branches into two trunks for each of both lungs. In the pulmonary alveolar capillaries, the blood is oxygenated through a process known as hematosis and is redirected through the four pulmonary veins that drain the oxygen-rich blood in the left atrium of the heart.

Answer 2

The heart receives its own supply of blood from the coronary arteries. Two major coronary arteries that branch off from the aorta near the point where the aorta and the left ventricle meet. These arteries and their branches supply all parts of the heart muscle with blood.