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Ch.3 Circulation
| Question | Answer |
|---|---|
| The cardiovascular system is also known as the | circulatory system |
| the cardiovascular system consists of | the heart, blood vessels, and blood. |
| The cardiovascular system does what? | carries needed substances to cells and carries waste products away from cells |
| the heart is a ... muscle that pumps ... throughout the ... | hollow, blood, body |
| the right side of your heart is completely seperated by the left side by a wall of tissue called the ... | septum |
| Each side of the heart contains ... compartments or chambers. An ... chamber and a ... chamber | 2, upper, lower |
| the 2 upper chambers are called ... | atriums |
| the 2 lower chambers are called... | ventricles |
| a ... is a flap of tissue that prevents blood from flowing backward | valve |
| ... are blood vessels that carry blood away from the heart | arteries |
| blood flows into tiny, narrow vessels called... | capillaries |
| in capillaries, substances are exchanged between the ... and ... cells | blood, body |
| blood that vessels carry back to the heart is called... | veins |
| in the ... loop, blood travels from the heart to the lungs and then back to the heart. | first |
| in the ... loop, blood is puped from the heart throughout the body and then returns again to the heart. | second |
| what is the largest artery in the body? | aorta |
| when blood exerts a force against the walls of blood vessels its called? | blood pressure |
| blood pressure is caused by... | the force with which the ventricles contract |
| the farther away from the ventricle the blood moves, the ... its force is | lower |
| how can you measure blood pressure? | with an sphygmomanometer |
| blood pressure is expressed in ... of ... | millimeters, mercury |
| blood pressure is recorded in .. numbers | two |
| ... pressure over .... pressure (its a fraction) | contraction, relaxation |
| blood is made of 4 components: | plasma, red blood cells, white blood cells, and platelets |
| ... is the liquid part of the blood | plasma |
| ... .... cells take up oxygen in the lungs and deliver it to cells elsewhere in the body | red blood cells |
| a red blood cell is made mostly of ... | hemoglobin |
| hemoglobin is | an iron containing protein that binds chemically to oxygen molecules |
| ........... fight diseases | white blood cells |
| name 3 things about what is different between white and red blood cells | there is fewer white cells than red, white cells are larger than red, whiite blood cells live longer than red |
| ... are fragments that play an important part in forming blood clots | platelts |
| The Rh factor is determined by the marker on the red blood cell. if ur marker is Rh positive u have the marker, if ur Rh negative, you lack the marker | |
| after bathing ur cells, the fluid is moved into ur drainaged system called the | lymphatic system |
| the lymphatic system is a | is a network of veinlike vessels that returns the fluid to the bloodstream |
| once the fluid is inside the lymphatic system, it is called a | lymph |
| lymph contains | water and glucose and some white blood cells |
| as lymph flows thro the system, it passes through a small knob of tissue called | lymph nodes |
| the lymph nodes filter ... , trapping ... in the fluid | lymph, bacteria |
| when the body is fighting an infection, the lymph nodes ... | enlarge or swell |