The action research process is an interactive method of collecting information. In the field of education, action research is used quite often to explore new ways of teaching and interacting in the classroom.
Unlike arteries, veins contain valves that ensure blood flows in only one direction. (Arteries donât require valves because pressure from the heart is so strong that blood is only able to flow in one direction.) Valves also help blood travel back to the heart against the force of gravity.rteries carry oxygenated blood away from the heart. Theyâre tough on the outside but they contain a smooth interior layer of epithelial cells that allows blood to flow easily. Arteries also contain a strong, muscular middle layer that helps pump blood through the body.
Arteries do NOT mean they carry oxygenated blood. Arteries can carry either oxygenated blood (e.g. aorta) or de-oxygenated blood (pulmonary artery). Artery simply refers to the direction in which blood is flowing. In this case, it means it is flowing away from the heart.he function of the coronary artery is to carry oxygen and nutrients to the myocardium (heart muscle), it does not actually take the carbon dioxide away, (that is the job of t â¦ he great and small cardiac veins). 46 people found this useful.