GRADE 9 . SCIENCE Q1

Cards (27)

  • heart is a muscular organ that pumps blood to all parts of the body
  • blood vessels flow blood throughout the body
  • veins, arteries, and capillaries are the three parts of blood vessels
  • veins carries blood towards the heart
  • arteries carries blood away the heart
  • capillaries surrounding body cells and tissues to deliver and absorbs oxygen, nutrients, and other substances
  • the four chambers of the human heart are the right atrium, left atrium, right ventricle, and left ventricle
  • the septum is a muscle that divides the four interior chambers
  • the atria are the receiving chambers of the heart. These are thin walled
  • the right atrium receives poor oxygen blood from the vena cava
  • the left atrium receives rich oxygen blood from the pulmonary vein
  • the ventricles are the pumping chambers that force blood out of the heart
  • the right ventricle pumps blood to the blood for oxygenation
  • the left ventricle pumps rich oxygen to the different parts of the body
  • the valves are like one way door keeping the blood moving in only one direction.
  • the atrioventricular valves are located between the atria and ventricles
  • the semilunar valves are located at the base of the vessels leaving the ventricles
  • the bicuspid refers to the right atrioventricular valve
  • the tricuspid refers to the left atrioventricular valve
  • the pulmonary semilunar valve between the right ventricle and pulmonary artery
  • the aortic semilunar valve is between the aorta and the left ventricle
  • The vena cava is the largest vein connected to the heart. Conveys poor oxygen from different parts of the body back to the atrium
  • the aorta is the largest artery. Send rich oxygen blood to all parts of the body
  • the pulmonary artery conveys blood from right ventricle to lungs for oxygenation
  • the pulmonary vein conveys rich oxygen back to the left atrium to the heart
  • the circulatory system moves oxygen, nutrients, and hormones to your body's cells for energy, growth, and repair.
  • the pulmonary circulation, coronary circulation, and systematic circulation are the 3 types of CIRCULATION