A human embryo develops with a mutation that prevents smooth muscle from developing in the body. Which bodily functions will be most heavily affected by this mutation if it survives to birth?
A. Digestive system functions
B. Muscular movement
C. Bone functions
D. Heart functions
Answer: A
Anatomy & Physiology
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Indicate whether this statement is true or false.
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a. CD8 b. CD4 c. BRC d. TRC
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Acid reflux into the esophagus ("heartburn") is normally prevented by ________.
A. pharyngeal and buccal sphincters B. the lower esophageal sphincter (LES) C. pharyngeal constrictors D. esophageal glands E. the upper esophageal sphincter
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Which term means heart contraction?
A) diastole B) tachycardia C) systole D) fibrillation
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