Answers Guaranteed pass A Graded
1). The pulmonary trunk divides into the right and left pulmonary arteries about __________
centimeters above its origin
Ans: 5
2). The correct sequence of parts that carry cardiac impulses is
Ans: SA node, AV node, AV bundle, Purkinje fibers
3). A moving blood clot:
Ans: Embolus
4). Ion most critical to blood clotting regardless of pathway:
Ans: Calcium
5). The systemic circuit
Ans: sends oxygen-rich blood to the tissues
6). White blood cell that is the most abundant and usually the first respond to an infection:
Ans: Neutrophil
7). In the normal sequence of blood flow, oxygenated blood returning from the lungs via
pulmonary veins must enter the ________ next
Ans: Left atrium
8). Enzyme that converts fibrinogen to fibrin during the clotting process
Ans: thrombin
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, 9). Layer of the heart wall that is the thickest and contains cardiac muscle cells:
Ans: Myocardium
10). Part of blood plasma
Ans: Fibrinogen
11). Which type of blood vessel holds the greatest volume of blood?
Ans: Vein
12). The left av valve is also known as the __________ valve
Ans: Bicuspid
13). Red blood cell:
Ans: Erythrocyte
14). Universal donor blood:
Ans: O-
15). The pulmonary circuit
Ans: sends oxygen-poor blood to the lungs
16). Plasma protein mainly involved with the blood clotting process:
Ans: Fibrinogen
17). Genetically based anemia that involves mutant hemoglobin and abnormally shaped red
blood cells:
Ans: Sickle cell
18). Type ab+ blood has which antibodies in its plasma:
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, Ans: None of the above:
Anti-B
Anti-D
Anti-A
All of the above
19). Enzyme that breaks down blood clots:
Ans: Plasmin
20). Type o+ blood has which antigens on its red blood cell surface:
Ans: Neither A nor B
21). Which of the following might serve as a secondary pacemaker for the heart?
Ans: AV node
22). White blood cell that is an agranulocyte:
Ans: T-Lymphocyte
23). White blood cell that releases histamine and heparin to promote inflammation:
Ans: Basophil
24). In the normal sequence of blood flow, after crossing the tricuspid valve, blood should next
enter the _________ next
Ans: Right ventricle
25). Average life span of a red blood cell:
Ans: 120 days
26). Major class of antibody found in secretions such as saliva, tears, and milk:
Ans: IgA
Which response is slower but more specific for a pathogen?
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, 27).
Ans: Adaptive defenses
28). Lymph vessels are known to contain ____________ just like veins in the cardiovascular
system
Ans: valves
29). To join the cardiovascular system, lymph empties directly into the ______ veins:
Ans: Subclavian
30). A disease causing organism:
Ans: pathogen
31). The most active phagocytic cells in circulating blood are
Ans: neutrophils and monocytes
32). The type of resistance that is acquired as a result of developing a disease is
Ans: naturally acquired active immunity
33). The supratrochlear lymph nodes are located near the:
Ans: elbow
34). Blockage of lymph vessels will most likely lead to abnormal tissue swelling called:
Ans: Edema
35). Long-term immunity is mainly a function of _____ lymphocytes:
Ans: memory
36). When your immune system mistakenly targets your own body cells, the result is called:
Ans: Autoimmunity
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