Quiz Circulatory System vir

Unit 6 Circulatory System NAME EVir
Multiple Choice Circle the correct answer.

1. Which of the following could result in a Rh incompatibility problem?
A. a Rh positive mother and a Rh negative fetus
B. a Rh negative mother and a Rh positive fetus
C. a Rh negative mother and a type AB fetus
D. a Rh positive mother and a Rh negative father

2. What is the primary function of platelets?
A. to fight infection
B. to start the clotting process
C. to carry O2
D. to transport hormones

3. Which of the following are the cells in the blood that carry hemoglobin?
A. platelets
B. antibodies
C. erythrocytes
D. leukocytes

4. Which of the following is the pacemaker for the heart?
A. Bundle of His (atrioventricular bundle)
B. Purkinje fibers
C. SA node
D. AV node

5. The order in which impulses travel through the heart is:
A. bundle of His, Purkinje fibers, SA node, AV node
B. Purkinje fibers, bundle of His, AV node, SA node
C. SA node, AV node, bundle of His, Purkinje fibers
D. AV node, SA node, bundle of His, Purkinje fibers


6. A blood clot that travels is also called a (n)
A. thrombus
B. varix
C. embolus
D. diencephalon (please don’t pick this one )

7. Mr. B presents for his annual checkup and his heart is beating 54 times per minute.
Mr. B’s condition can be described as:
A. bradycardia
B. tachycardia
C. sinus arrhythmia
D. endocarditis



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