Question

needs assistance with biology 2

Chapter 28829 3e (1) [Compatibility Mode] - Word Tell me what you want to do ees Mailings Review View Help Chapter 27: Cardiovascular System 1. Tell the function of the following parts of the cardiovascular system a. HEART b. VENTRICLES c. ARTERIES d VEINS: e. Capillaries: 2. Trace the route of blood flow through the cardiovascular system. (Starting with oxygenated blood coming from the lungs, describe the path that the blood takes through the body, ending with the deoxygenated blood returning to the lungs) Ans a. What is the main function of the pulmonary circuit? b. What is the main function of the systemic circuit? 4 1 What component(s) of the cardiovascular system is (are) essential to maintain bodily function? (Choose all that apply)

Answer 1

A. The human heart is an organ that pumps blood throughout the body via the circulatory system, supplying oxygen and nutrients to the tissues and removing carbon dioxide and other wastes.

B. he ventricles of the heart function to pump blood to the entire body. During the diastole phase of the cardiac cycle, the atria and ventricles are relaxed and the heart fills with blood. During the systole phase, the ventricles contract pumping blood to the major arteries (pulmonary and aorta).

C. An artery is a vessel that carries blood away from the heart and toward other tissues and organs. Arteries are part of the circulatory system, which delivers oxygen and nutrients to every cell in the body.

D. Veins are an important part of our circulatory system. They are responsible for returning deoxygenated blood back to the heart after arteries carry blood out. The vena cava is the largest vein in the body.

E. Capillaries are very thin blood vessels that were first discovered in the frog lungs in 1661. They bring nutrients and oxygen to tissues and remove waste products.

2. Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium. ... As the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs, where it is oxygenated.

3. A. The pulmonary circulation is the portion of the circulatory system which carries deoxygenated blood away from the right ventricle, to the lungs, and returns oxygenated blood to the left atrium and ventricle of the heart. The term pulmonary circulation is readily paired and contrasted with the systemic circulation.

B. The systemic circulation provides the functional blood supply to all body tissue. It carries oxygen and nutrients to the cells and picks up carbon dioxide and waste products. Systemic circulation carries oxygenated blood from the left ventricle, through the arteries, to the capillaries in the tissues of the body.