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50 Cards in this Set
- Front
- Back
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a round, darkly-stained WBC that contains long granules...
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basophil - they stain blue-purple with basic dyes.
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what are eosinophils
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function in combating the effects of histamine...destroy parasitic worms
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what are basophils
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they function to liberate heparin, histamine, and serotonin in allergic reactions and that intensify the inflammatory reaction
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what is anemia
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a condition in which he oxygen-carrying capacity of blood is reduced
and may be caused by deficient amount of iron in the diet. |
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what is fibrous pericardium
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outer layer of tough fibrous connective tissue that protects and anchors the heart in position
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serous pericardium
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inner layer of thinner membrane consisting of two layers (parietal and visceral)
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the three layers of the heart wall are
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epicardium
myocardium endocardium |
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what are the four major valves of the heart?
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atrioventricular (right and left)
semilunar (pulmonary and aortic) |
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what is chordae tendineae
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connect to the cusps of valves and to the papillary muscles in the ventricles walls...it allows the cusps to rise just high enough to close the opening
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another name for the tricuspid valve
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right atrioventricular valve (three leaflets or cusps)
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the cusps of the tricuspid valve are connected to...
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chordae tendineae
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the aortic and pulmonary valves are known as the ......
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semilunar valves
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they are made up of three crescent moon-shaped cusps...what are they.
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semilunar valves
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the semilunar valves allow ejection of blood from the heart into arteries but prevent backflow of blood into the ......
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ventricles
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because they are located between the atrium and a ventricle, the tricuspid and bicuspid valves are termed
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atrioventricular valves
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most of the deoxygenated blood from the myocardium drains into a large vascular sinus in the coronary sulcus on the posterior surface of the heart...what is it called
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coronary sinus
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the deoxygenated blood in the coronary sinus empties into the ....
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right atrium
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what is a QRS complex?
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onset of ventricular depolarization
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a normal ECG consists of a P wave...what is a P wave
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atrial depolarization
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What does mediator refer to?
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A mediator accounts for (or partially accounts for) a relationship between an IV and DV. So if A and B are IV and C is DV, B is a mediator if it accounts for (or partially accounts for) the relationship between A and C.
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ACH does what to the heart?
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slows the heart rate and decreases cardiac output
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what is the function of blood in the body?
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transport oxygen, carbon dioxide, nutrients, wastes, and hormones
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what are the formed elements of blood?
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wbc
rbc platelets |
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what percentage of the blood is formed elements?
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45%
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what does blood help regulate?
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pH, body temperature, and water contents of cells
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the function of the hemoglobin in red blood cells is .....
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to transport oxygen and some carbon dioxide
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what is a thrombocyte?
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a blood platelet (platelets help stop blood loss from damaged blood vessels by forming a platelet plug)
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what are the characteristics of a thrombosis?
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1. stationary clot in an unbroken blood vessel
2. usually a vein 3. actual clot called a thrombus 4. may dissolve spontaneously 5. if not may dislodge and be carried in blood |
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ABO and Rh blood groups are genetically determined and based on antigen-antibody responses. t or f
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true
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in the ABO blood group, the presence or absence of A and B antigens on the surface of RBCs determines .........
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blood type
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within a given blood group there may be two or more different ......
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blood types
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there are at least 24 blood groups and more than ____ antigens that can be detected on the surface of red blood cells
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100
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genetically determined antigens are also called ....
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agglutinogens
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people whose RBCs display only antigen A have what type of blood.
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type A
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blood plasma usually contains antibodies called ...
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agglutinins
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type a person can give to ....
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type A and AB and receive from A & O
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type b person can give to ...
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type b and AB and receive from B & O
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type AB person can give to ...
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AB and receive from A, B, AB & O
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type O person can give to
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A, B, AB, & O and receive from O
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name the order of the heart components
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SA Node
Atrioventricular Node Bundle of His Right and Left Branches PurkinjeFibers |
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what distributes the action potential to the ventricles
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purkinje fibers
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the sound of the heart is due to
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turbulence in blood flow caused by the closure of the heart valves
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what is the first heart sound
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lubb
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what is the second heart sound
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dupp
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closure of the semilunar valves closing at the end of ventriclar diastole.....
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sound 2 - dupp
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where is the heart located?
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within the mediastinum of the thoracic cavity
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the coronary sinus, the superior vena cava, and the inferior vena cava all flow into the......
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right atrium of the heart
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correct flow of the blood in the heart.
1. right atrium, right ventricle, pulmonary semilunar valves, tricuspid valve, pulmonary artery 2. right atrium, tricuspid valve, right ventricle, pulmonary semilumar valves, pulmonary artery 3. right atrium tricuspid valve, pulmonary semilunar valves, right ventricle, pulmonary artery |
2. RA, tricuspid valve, right ventricle, pulmonary semilunar valves, pulmonary artery
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the coverings of the heart superficial to deep are....
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fibrous pericardium
parietal serous pericardium pericardial cavity visceral serous pericardium/epicardium myocardium endocardium |
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what is heme?
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4 nonprotein pigments...each attach to the protein and contain iron Fe
each globun is associated with a heme group in its center |
