Question | Answer |
tissue made up of cells fluid and other substances which carries o2 co2 and nutrients through tubes called blood vessels | blood |
organ that pumps blood | heart |
o2 carrying pigmen rbc of blood | hemoglobin |
chamber of heart that recieves blood from body | atrium |
blood in right atrium is pushed through an_____________ valve into right ventricle | atrioventricle |
one of twwo large muscular chambers that pump blood out of heart | ventricle |
squeezes blood out of heart to lungs where co2 is removed and o2 enters | right ventricle |
blood returns to heart at _______________ then pushed through an a-valve into __________ | left atrium/left ventricle |
3 types of vessels that carry blood through body | arteries, veins, capillaries |
carry blood away from heart | arteries |
carry blood to heart | veins |
tiny blood vessels that connect arteries to veins | capillaries |
about_______% of blood is plasma | 55% |
plasma is a clear liquid that is about_____% water | 92% |
3 types of blood cells that make up blood | RBC, WBC, platelets |
full of hemoglobin and carry o2 to body also return co2 to lungs | RBC |
protect body from disease | WBC |
blood clots | platelets |
brings life giving o2 to body and helps get rid of co2 | respiratory system |
process of bringing o2 in and getting rid of co2 | respiration |
main organs of gas exchange | lungs |
air enters body through _______ and __________ | mouth, nasal cavities |
after air enters body, it flows into | pharynx, (throat) |
at the base of the pyarynx is | larynx (voice box) |
attached to larynx is _____________ which carries air into lungs | trachea (windpipe) |
trache branches into 2 tubes _________ which send air to lungs | bronchus |
in the lungs, bronchi branch into many tubes , smallest is called | bronchiole |
at end of each bronchiole is an air sac called__________ which is site for gas exchange | alveolus |
movement of rib muscles and ______________ pull air into lungs and push air out | diaphragm |
sheet of muscle that seperates chest cavity from the abdominal cavity | diaphragm |
controlled by brain stem that detects co2 in blood | breathing rate |