What occurs during the time between the first heart sound and the second heart sound?
A. ventricular systole
B. ventricular diastole
C. ventricular filling
D. atrial systole
E. the P wave of the ECG
A
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Considering muscles, bones, and joints as lever systems, a calculated "moment" for the load would be
a. force times load arm b. force times power arm c. load arm divided by force d. either a and b e. either b and c
Like all epithelial membranes, the skin has an epithelial layer and a connective tissue layer. The keratinized epithelial and connective tissues are ________
A) stratified columnar and reticular B) stratified cuboidal and dense regular C) stratified squamous and dense irregular D) simple squamous and areolar
Which of the following thoracic organs is supplied by a parietal branch of the thoracic aorta?
A. the heart B. the lungs C. the esophagus D. the intercostal muscles E. the thymus gland
How many single bonds can a carbon atom form if it is double-bonded to an oxygen atom?
A. 1 B. 2 C. 3 D. 4