When the left ventricle contracts, the ________ valve closes and the ________ valve is pushed open.
A. aortic; pulmonary
B. mitral; pulmonary
C. mitral; aortic
D. right AV; pulmonary
E. right AV; aortic
Answer: C
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The region of the sarcomere that always contains thin filaments is the
A) Z line. B) M line. C) H band. D) A band. E) I band.
The sodium chloride molecule breaks apart in water. What does "E" represent (the process)?
A. chloride ion B. dissociation C. water molecule D. sodium ion E. salt crystal
To produce images of soft tissue in the body, __________ resonance imaging would be utilized.
Fill in the blank(s) with the appropriate word(s).
A continuous capillary differs from a fenestrated capillary because
A) the endothelium is a complete lining, with endothelial cells connected by tight junctions and anchoring junctions, which is untrue for a fenestrated capillary. B) this is a classification by location only, and does not have any structural significance. C) a continuous capillary has a continuous media and externa; a fenestrated one does not. D) a continuous capillary has pores arranged in an ordered pattern; a fenestrated one does not. E) All of the answers are correct.