| A | B |
|---|
| circulatory system is made up of the | cardiovascular system & lymphatic system |
| the heart has how many chambers | 4 |
| the right and left atria | receive blood |
| the right and left ventricles | pump blood to the body |
| blood enters the right atrium from the | (veins) superior & inferior vena cava |
| blood passes from the atroventricular valve to | the right ventricle |
| the purpose of valves is | to prevent backflow when ventricles contract |
| the right ventricle pumps blood thru the semi lunar valves into | the pulmonary arteries |
| pulmonary arteries carry blood to the | lungs |
| blood from the pulmonary arteries is | deoxygenated and becomes oxygenated in the lungs |
| newly oxygenated blood leaves the lungs via the | pulmonary veins which returns blood to the left atrium |
| from the left atrium blood passes thru another atrioventricular valve to the | laft ventricle |
| the left ventricle pumps blood thru the aorta to | all parts of the body |
| systole | when the heart contracts and pressure increases |
| diastole | when the heart relaxes pressure is lowered |
| pulmonary circulation | ciculation of blood thru the lungs |
| systemic circulation | ciculation through out the body |
| blood is considered to be a | connective tissue |
| plasma | the yellow-colored liquid component of blood, in which blood cells are suspended |
| plasma contains | proteins, ions, hormones & gases |
| red & white blood cells and platelets make up | 45% of whole blood |
| plasma makes up | 55% of whole blood |
| red blood cells | erythrocytes |
| red blood cells transport | oxygen & do not have nuclei |
| hemoglobin is rich in | iron & is an oxygen carrier |
| leukocytes | white blood cells |
| leukocytes are involved in | immune defense |
| an infection is indicated by | an abundance of leukocytes |
| platelets are found in | plasma |
| platelets are important in | clotting and are fragments of cells |
| lymph | fluids and proteins that leak out of blood vessels |
| lost fluid (lymph) returns to the | circulatory system |
| lymph nodes | special pockets in the lymphatic system where lymph is filtered |
| white blood cells are present in lymph nodes | and are a sign of infection |
| 3 kinds of blood vessels | arteries,veins, & capillaries |
| arteries transport blood | away from the heart & are high pressure |
| veins transport blood to the | heart |
| veins contain | valves to prevent backflow |
| capillaries | are tiny blood vessels that connect arteries & veins |
| through capillary walls one cell thick | materials enter & leave the blood |
