An abnormally slow heartbeat is called:
A) bradycardia.
B) tachycardia.
C) fibrillation.
D) murmur.
A
Explanation: A) Correct.
B) Tachycardia is an abnormally rapid heartbeat.
C) Fibrillation is a condition in which the heart quivers with a disorganized rhythm.
D) A murmur is an abnormal blowing sound heard when auscultating the heart.
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A genetic defect in the ?5 gene would cause which of the following consequences? (Select all that apply.)
a. inability to produce functional ? chains b. inability to produce a pre-B-cell receptor c. inability to produce functional ? or ? chains d. production of different light chains owing to defects in allelic exclusion e. B-cell immunodeficiency f. chronic bacterial infections g. requirement for prophylactic injections of antibodies from healthy donors.
A program designed to strengthen the abdominal, hip, and spinal muscles is called _______.
A. periodization B. circuit training C. elastic-band resistive exercise D. plyometric exercise E. core strength-training
Effacement is the
A) process of the fetus moving through the birth canal. B) final phase of the first stage of labor. C) process of the cervix beginning to open. D) process of expelling the placenta.
RBCs live approximately how long?
A. 30 days B. 60 days C. 120 days D. 180 days