Which function does the circulatory system share with the heart? Select one: a. Regulates blood pressure b. Directs blood flow to tissues c. Transports hormones to all areas of the body d. Exchanges nutrients and wastes with cells
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- Blood flows in one direction through the heart as it contains valves that prevent backflow. This example best illustrates which aspect of the principle of complementarity of structure and function? a. function always reflects structureb. structure always reflects functionc. anatomy and physiology are inseparable d. a and ce. none of the aboveWhich one of these would you expect to be part of a closed, butnot an open, circulatory system?a. ostia d. heartb. capillary beds e. All of these are correct.c. hemolymphWhich of the following is the best description of what happens in capillaries? A. Capillaries are surrounded by thicker smooth muscle moving blood cells to exchange nutrients and oxygen. B. Capillaries connect minor veins to major veins returning blood to the heart. C. Capillaries are the location where oxygen, carbon dioxide, and nutrients are exchanged with tissues at the cellular level. D. Capillaries are the site where blood mixes with interstitial fluid to allow for gas and nutrient exchange.
- The system that provides for movement of the body is the a. skeletal system. b. nervous system. c. muscular system. d. circulatory system.In humans the wall of the left ventricle is thicker than that of the right ventricle. This adaptation is due to the fact that the left ventricle Select one: O a. pumps blood to the extremities of the body O b. pumps blood that is low in oxygen content O C. is smaller than the right ventricle O d. pumps blood to the left and right lungsWhich internal factor must be monitored and adjusted to maintain homeostasis?a. blood pressure b. internal temperature c. blood pH d. all of the above
- Which internal factor must be monitored and adjusted to maintain homeostasis? a. blood pressure b. internal temperature c. blood pH d. all of the aboveThe heart: Select one: is located in the thoracic region with its apex pointing superiorly b. has valves between the atria and ventricles that prevent back-flow of blood within the heart O c. supplies blood to the systemic circulation via the superior vena cava d. is surrounded by the cartilaginous pericardium e. lies in the peritoneal cavity a.Which two organ systems maintain homeostasis by dictating other organ systems? Choose two. a. immune system b. digestive system c. nervous system d. circulatory system e. integumentary system f. endocrine system g. respiratory system h. reproductive system i. skeletal system
- 1. Discuss Circulatory System. 2. What is heart? 3. Discuss blood 4. discuss blood vessels26. A person with a low white blood cell count would have difficulty. a. Blood clotting b. Breathing c. Moving d. Fighting disease 27. Which of the following was one of the three things you should do to keep your heart healthy? a. Take drugs b. Eat a lot of junk food c. Don't smoke d. Don't exercise 28. What structure prevents the backwards flow of blood? a. Dam b. Valve c. Canal d. Tunnel e. Blood VesselWhat is the main purpose of the circulatory system? move blood throughout the body move lymphatic fluid from the tissue to the heart digest food move blood and lymph throughout the body
