6243423
Description
Flashcards by Jasmine Tran, updated more than 1 year ago
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Created by Jasmine Tran
about 8 years ago
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| Question | Answer |
| Blood | transports oxygen and nutrients to body cells & carry away carbon dioxide and metabolic wastes |
| Plasma | contains 10% proteins, ions, nutrients, waste, and hormones |
| What is the blood volume of an adult male & female? | male- 5-6L female- 4-5L |
| Whole blood is __% plasma and __% elements: which are (3 types) | 55% plasma and 45% formed elements: erythrocytes, leukoctyes, and platelets |
| Where are all formed elements in the blood formed at? | by stem cells in red bone marrow |
| Erythrocytes | red blood cells; transport oxygen |
| Leukocytes | white blood cells; active in phagocytosis (eating bacteria) (neutrophils & monocytes) and antibody formation (lymphocytes) |
| 3 Granulocytes | Neutrophils: 1st MOST leukocyte Eosinophils: 4th most leukoctye Basophils: 5th LEAST leukoctye |
| 2 Agranulocytes | Lymphoctes: 2nd most leukocyte Monoctyes: 3rd most leukocyte |
| Platelets | active in the process of blood clotting |
| Describe the flow of blood through the heart. | Arrives via vena cava >>into R atrium>> tricuspid valve >>into R ventricle >>pulmonary semilunar valve >>to pulmonary artery >>lungs >>to pulmonary veins >>into L atrium >>mitral valve >>into L ventricle >>aortic semilunar valve >>leaves via aorta |
| Blood is supplied to the heart myocardium (heart muscle) through the ______ and drains through the _______. | coronary arteries coronary sinus |
| Deflections of the ECG represent _________ | the electrical activity that precedes contraction and relaxation |
| Systole | (pumping) contraction phase of the cycle blood leaves the heart |
| Diastole | (filling) relaxation phase blood comes into the heart |
| Arteries carry blood ____ the heart | away from |
| Veins carry blood ____ the heart. | to |
| Arteries carry blood in ____ pressure. Veins carry blood in ____ pressure. | high low |
| Capillaries | smallest of vessels; exchange of water, nutrients, waste products between blood & tissue |
| Arterioles | smallest arteries that are away from the heart |
| Difference between negative & positive feedback? | Neg-used to maintain homeostasis; activates with the lack of something Pos-increase output; activates at the presence/signal of something |
| Antigens | markers on your RBC A - A antigens B - B antigens AB - A and B antigens O - no antigens |
| Antibodies | proteins that are "against" specific antigens A - anti-B B - anti-A AB - no antibodies O - both anti-A & anti-B |
| What kind of blood can a person get if they have: A , B , AB , O bloodtype? | A - A or O B - B or O AB - A, B, or O O - O |
| Rh blood group | Rh+ = Rh antigens Rh- = no Rh antigens Anti-Rh antibodies are formed in Rh- individuals when in contact with Rh+ blood. Nothing bad the first time, but will agglutinate the next time. |
| Which blood type is a universal donor? | O- |
| Function of the respiratory system | supplies oxygen to the body & eliminates carbon dioxide |
| Respiratory system organs | nose, pharynx, larynx, trachea, bronchi, lungs w/ thier alveoli, diaphragm, muscles surrounding the ribs |
| External respiration | exchange of gases between the atmosphere and the blood through the alveoli |
| Internal respiration | exchange of gases between the blood and the body cells |
| Inhalation requires the contraction of the ______ to enlarge the thoracic favity and draw air into the lungs. | diaphragm |
| Right lung | is bigger & heavier has 3 lobes |
| Left lung | smaller because the heart is more to the left has 2 lobes |
| SA node AV node | SA- primary pacemaker of the heart, faster AV-a gate to control ventricles |
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