BIO ;-;

• The passage of food needs to occur in a controlled way, so the body contains rings of muscle in the digestive tract that regulate the movement of food. These are...

  b) sphincters
• if u were given a piece of cow's heart and told that it was one of the thicker-walled chambers, u would know that u had an atrium

  FALSE
• Artery supplying blood to the heart muscle

  • aorta
  • coronary artery
  • carotid artery
  • superior vena cava
  • inferior vena cava
• Problem area suspected if blood improperly drains from all areas above the diaphragm

  • femoral vein
  • superior vena cava
  • pulmonary vein
  • inferior vena cava
  • jugular vein
• which main tissue type of the circulatory system enables diffusion across walls of capillaries?

  e. epithelial
• if u exercised more and more intensely over two months, your resting rate would decrease.

  true
• the walls of the right ventricle are thicker than those of the left ventricle.

  false
• the large vessls of the circulatory system that carry blood away from the heart are

  arteries
• the small vessels from which water are dissolved substances diffuse between the blood and interstitial fluid are

  capilaries