Systemic circulation requires help from which of the following?

Question

bones

lungs

arteries and veins

muscles

Answer 1

arteries and veins

Answer 2

Arteries and veins carry the blood. However, once the blood has passed from artery to capillary to vein, the force (pressure) of the blood has decreased so much that when the heart relaxes (called diastole), gravity will pull the blood that is below the heart (such as in the legs) downward. To prevent that, the veins have little flaps called one way valves. To help the blood to flow back toward the heart, contracting muscles squeeze the veins and force the blood passed the one way valves. Therefore, systemic circulation is aided by muscle contraction.

Answer 3

The health of the distal capillary beds, activity that involves muscle contraction, and relaxation, the lack of serious compromise for the ability of the arterial and venous to flow unimpeded, and a heart that provides good cardiac output. Also, good pulmonary function is required to provide the arterial blood supply with enough O2 to satisfy the demand of the body at that time. The red spongy bone in our ribs, and the ends of our long bones are responsible for the formation of the RBC's which carry O2 on the hemoglobin molecules where they are formed. So to be more succinct. All of your choices are necessary for homeostasis.

Answer 4

Muscles - move the blood along through the veins. That's why you're supposed to get up and move around the airplane instead of just sitting in your seat during long flights.