A&P Quiz 5 Word Scramble
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Question | Answer |
About 95% of the volume of the formed elements; transport oxygen and carbon dioxide. | Red blood cells (RBCs) ; erythrocytes |
Most of the remaining 5% of the volume of the formed elements; are involved in immunity. | White blood cells (WBCs) ; Leukocytes |
Tiny cell fragments; making a negligible contribution to plasma volume; are involved in blood clotting. | Platelets ; Thrombocytes |
The __________ is a low-pitched sound caused by vibration of the atrioventricular valves and surrounding fluid as the valves close at the beginning of ventricular systole. | first heart sound |
Which are characteristic of type Rh negative blood? | Only under certain conditions will Rh (anti-D) antibodies be present ; Is inherited independent of the ABO group |
The cells of the ___________ act as the heart's pacemaker, which establishes the pace for cardiac activity. | sinoatrial (SA) node |
Which are characteristic of type A blood? | Has anti-B antibodies ; Has surface antigen A on its erythrocytes ; Will agglutinate with blood type B |
Determine whether each item is a formed element or part of the plasma : White Blood cells, neutrophils, eosinophils, basophils | Formed Element |
Determine whether each item is a formed element or part of the plasma: Electrolytes, water, proteins, wastes | Plasma |
The layer of the heart wall composed of cardiac muscle tissue is the | myocardium |
Which are the least numerous of the leukocytes? | basophils |
Electric currents in the heart can be detected by means of ______ applied to the skin. | electrodes |
An instrument called the electrocardiograph _____ these signals and produces a record on a moving paper chart. | amplifies |
The chart includes three principle deflections above and below the baseline; the P wave, QRS complex, and the _____ wave. | T |
The P wave is produced when a signal from the SA node spreads through the atria and _____them. | depolarizes |
The QRS complex is produced when the signal from the AV node spreads through the _______ myocardium and depolarizes the muscle. | ventricular |
The T wave is generated by ventricular repolarization immediately before ____. | Diastole |
If agglutination occurs after a blood transfusion, it may indicate | The wrong blood type was used |
Epicardium | Thin serous membrane of the outer surface of the heart ; also known as the visceral layer of serosal pericardium |
Endocardium | The inner surface of the heart ; Covers surface of heart valves |
Myocardium | Thick middle layer of the heart; Composed of cardiac muscle cells |
Characteristics of cardiac muscle | Cells are short and branching ; cells have 1 or 2 nuclei in the center of the cell; they are composed of thick and thin filaments; the functional contractile unit is the sarcomere |
In the right atrium, the auricle and anterior wall exhibit obvious muscular ridges called | pectinate muscles |
Which heart chambers contain deoxygenated blood? | right atrium and right ventricle |
The __________ valve is between the right atrium and right ventricle. | tricuspid |
Which are characteristics of type O blood? | Has anti-A antibodies ; Has anti-B antibodies ; Has neither surface antigen A nor B on its erythrocytes |
components of the formed elements | erythrocytes, leukocytes, platelets |
erythrocyte | transport respiratory gases |
lymphocyte | includes B- and T-cell; destrocy cancerous and virally infected cells |
Basophil | Produce histamine and heparine; initiate the inflammatory response |
Eosinophil | Increase in number during parasitic infections |
Monocyte | Differentiate into tissue macrophages |
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elizabethcosio
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