Which of the following leukocytes are phagocytes?
A) neutrophils, eosinophils, and monocytes
B) monocytes, lymphocytes, and macrophages
C) neutrophils, eosinophils, and basophils
D) monocytes, lymphocytes, and reticulocytes
E) monocytes, lymphocytes, and megakaryocytes
Answer: A) neutrophils, eosinophils, and monocytes
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This figure shows a frontal section of the kidney. What structure does number 5 indicate?
A. Renal medulla B. Renal lobe C. Renal sinus D. Renal pyramid E. Renal cortex
Integrins
a. create a filamentous meshwork in the inner surface of the membrane. b. act as membrane-bounded enzymes. c. are used for cell recognition purposes. d. span the membrane, providing a mechanical link between the outer membrane and the cell's surrounding. e. none of these answers.
Which form of thyroid hormone has greater activity at target cells?
a. T3 b. T4 c. neither; T3 & T4 have equal activity.
Which of the following is true concerning isotonic eccentric contraction?
A. The muscle tenses and shortens. B. The muscle shortens, but tension remains constant. C. The muscle lengthens, but tension remains constant. D. The muscle lengthens, and tension declines. E. The muscle tenses, but length remains unchanged.