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StraighterLine Anatomy and Physiology II - Chapter 19: Blood Exam With 100% Correct Answers 2023
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StraighterLine Anatomy and Physiology II - Chapter 19: Blood Exam With 100% Correct Answers 2023
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StraighterLine Anatomy and Physiology II - Chapter 19: Blood Exam With 100% Correct Answers 2023The only formed elements that possess a nucleus when mature are the:
a. thrombocytes
b. erythrocytes
c. leukocytes
d. platelets
e. RBCs - Correct Answer-c. leukocytes
In the platelet release reaction, a. factor XII is activated
b. ADP and thromboxanes stimulate other platelets to become activated
c. activated platelets are connected by fibrinogen
d. prostaglandin production is inhibited
e. platelets convert to fibrin - Correct Answer-b. ADP and thromboxanes stimulate other platelets to become activated
Which of the following is NOT a form of hemoglobin found in the developing human?
a. adult
b. embryonic
c. adolescent
d. fetal - Correct Answer-c. adolescent
Healing after clot formation involves
a. clot retraction.
b. repair of the damaged blood vessel by connective tissue cells.
c. clot dissolution.
d. serum being squeezed out of the clot.
e. All of these choices are correct. - Correct Answer-e. All of these choices are correct
When defective erythrocytes are broken down,
a. they are removed from the blood by the lungs.
b. bilirubin is formed from the breakdown of hemoglobin.
c. their heme groups are converted into amino acids.
d. their iron is excreted into the small intestine.
e. their components cannot be recycled. - Correct Answer-b. bilirubin is formed from the
breakdown of hemoglobin
The hematocrit is
a. an estimate of blood flow/hour. b. the number of WBCs per mm3.
c. the amount of hemoglobin by weight in the blood.
d. the percentage of RBCs in a given volume of blood.
e. the number of RBCs in the body. - Correct Answer-d. the percentage of RBCs in a given volume of blood
When a person develops a sore throat, white blood cells are drawn to the area of infection by a process called
a. chemotaxis.
b. diapedesis.
c. margination.
d. ameboid movement.
e. attraction. - Correct Answer-a. chemotaxis
The function of plasmin is to
a. hydrolyze fibrin.
b. activate factor XII.
c. promote platelet plug formation.
d. control osmotic pressure of the blood.
e. promote the formation of plasma. - Correct Answer-a. hydrolyze fibrin
Which of the following would lead to increased erythropoiesis?
a. increased environmental O2 levels
b. increased erythropoietin levels
c. increased blood pH
d. increased blood pressure
e. increased CO2 levels - Correct Answer-b. increased erythropoietin levels
An increased amount of heparin in the blood might
a. speed up the clotting process.
b. prevent clotting process.
c. helps to coagulate the blood.
d. enhance the clotting process.
e. have no effect on the clotting process. - Correct Answer-b. prevent the clotting process
What protein forms a bridge between exposed vessel wall collagen and platelet surface receptors?
a. thromboxanes
b. von Willebrand factor
c. endothelin
d. fibrinogen - Correct Answer-b. von Willebrand factor
Which blood type is considered the universal recipient?
a. Type A
b. Type B
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