What percentage of our blood is plasma?
A. 90%
B. 55%
C. 45%
D. 65%
Answer: B. 55%
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A red blood cell contains a large nucleus; it is thicker near the center and thin around the
rim of the cell. Indicate whether the statement is true or false
The chordae tendinae of the AV valves are anchored to the ________ of the ventricles.
A. interatrial septum B. papillary muscles C. pectinate muscles D. trabeculae carnae E. interventricular septum
The muscles of the larynx are innervated by branches of which of the following nerves?
A. Hypoglossal B. Accessory C. Ansa cervicalis (C1-3) D. Glossopharyngeal E. Vagus
Saturated fats ________
A) have two fatty acid chains B) exist as solids at room temperature C) are formed from four interlocking carbon rings D) contain many double bonds E) exist as liquids and are derived from plants