Compare a ventricular septal defect with tetralogy of Fallot
What will be an ideal response?
Ventricular septal defects are abnormal openings between the left and right ventricles. Tetralogy of Fallot includes a ventricular septal defect plus three other heart defects: a narrowing of the pulmonary trunk, a displaced aorta, and an enlarged right ventricle with corresponding thickening right and left ventricles.
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Which part of a vertebra bears the most weight?
A. The transverse process B. The neural arch C. The centrum D. The lamina E. The pedicle
Some cells contain large numbers of mitochondria while others have relatively few or none. This suggests that
A) cells with large numbers of mitochondria are short-lived. B) cells with large numbers of mitochondria have a high energy demand. C) cells with small numbers of mitochondria have a large ATP supply. D) cells with large numbers of mitochondria have a low energy demand. E) some cells are older than others.
Which structure leaves the nucleus during transcription of protein synthesis?
A) DNA B) transport vesicle C) centrioles D) fixed ribosome E) mRNA
The sympathetic nervous system
a. releases NE from most of its preganglionic neurons b. has some postganglionic fibers that release acetylcholine c. has preganglionic neurons that originate in the thoracic and lumbar regions of the spinal cord d. has characteristics a and b e. has characteristics b and c