AP BIOLOGY

Detailed explanation-1: -The aorta is the main vessel through which oxygen-rich blood travels from the heart to the rest of the body. It also delivers nutrients and hormones. The aorta’s branches ensure these substances reach internal organs and nearby supporting tissue.

Detailed explanation-2: -Oxygen-rich blood flows from the lungs back into the left atrium (LA), or the left upper chamber of the heart, through four pulmonary veins. Oxygen-rich blood then flows through the mitral valve (MV) into the left ventricle (LV), or the left lower chamber.

Detailed explanation-3: -The largest artery in our human body is Aorta. It brings oxygenated blood from the ventricle to the whole body. Any blockage in the aorta can lead to problems with both heart activity and blood flow throughout the whole body.

Detailed explanation-4: -Answer and Explanation: The aorta is the largest artery because it connects directly to the heart and is the starting point for blood transport to the entire body.

Detailed explanation-5: -Arteries begin with the aorta, the large artery leaving the heart. They carry oxygen-rich blood away from the heart to all of the body’s tissues. They branch several times, becoming smaller and smaller as they carry blood further from the heart.