Which prenatal structure forms the ascending aorta and pulmonary trunk?
A. Truncus arteriosus
B. Conus cordis
C. Primitive ventricle
D. Sinus venosus
E. Primitive atrium
Answer: A
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Identify the statement concerning general functional characteristics of muscle that is true.
A. Muscle tissue shortens passively but lengthens forcefully. B. Muscle tissue can get shorter, but cannot get longer. C. Muscle tissue shortens forcefully but lengthens passively. D. Muscle tissue can get longer, but cannot get shorter. E. None of these statements are true.
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Answer the following statement true (T) or false (F)