A "blue baby" is often associated with what congenital heart defect?
A) ventricular septal defect
B) atrioventricular septal defect
C) tetralogy of Fallot
D) patent ductus arteriosus
E) transposition of the great vessels
Answer: D
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Which of the following is not organic?
A. Enzymes B. Nucleic acids C. Lipids D. Sodium chloride
The refractory period in cardiac muscle is much shorter than the refractory period in skeletal muscle to ensure that the heart can quickly be restimulated to produce alternate periods of contraction and relaxation
Indicate whether the statement is true or false
Glomerular filtration stops if the systemic blood pressure rises above ~45 mmHg.
a. true b. false
Which of the following is a paired structure?
a. cerebral (mesencephalic) aqueduct b. median aperture c. central canal of spinal cord d. lateral aperture