The S-T segment of an ECG represents ________.
A. ventricular depolarization
B. passage of the electrical impulse to the atrioventricular node
C. atrial depolarization
D. the plateau phase of the myocardial action potential
Answer: D
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In quiet breathing,
A) inspiration and expiration are both passive processes. B) inspiration involves muscular contractions and expiration is passive. C) inspiration is passive and expiration involves muscular contractions. D) inspiration and expiration involve muscular contractions. E) None of the answers are correct.
If a woman ovulates two oocytes and both are fertilized,
A. paternal twins result. B. identical twins result. C. fraternal twins result. D. conjoined twins result. E. monozygotic twinning occurs.
The pancreas is part of the alimentary canal
Indicate whether this statement is true or false.
Fibrin is quickly disposed of by plasmin activated by __________ or tPA
Fill in the blank(s) with correct word