Which head of the quadriceps femoris extends the knee and flexes the thigh?
A. Vastus lateralis
B. Vastus medialis
C. Vastus intermedius
D. Rectus femoris
E. Biceps femoris
D. Rectus femoris
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Molecules with two fatty acid chains and a phosphate group that form biological membranes are called
A) diglycerides. B) disaccharides. C) dipeptides. D) prostaglandins. E) phospholipids.
An injectable drug placed into a substance that delays absorption is called a a. parenteral drug
b. repository preparation c. suspension. d. solution.
The location of the testes allows them to:
a. be maintained at a temperature about 3 degrees below normal body temperature b. be insured of an adequate blood supply c. be maintained at a temperature about 3 degrees above normal body temperature d. both B and C above
The structure in which cells repeatedly divide to produce new cells that form a hair is the
A. hair matrix. B. Merkel region. C. hair shaft. D. lunula.