Which of the following is not a way in which antibodies exert their protective influence?
a. neutralization.
b. agglutination.
c. direct destruction of foreign organisms.
d. activation of the complement system.
e. enhancement of phagocytosis.
C
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The glenoid labrum is
A. the cartilage lining the cavity. B. the fluid secreted by the synovial membrane. C. the rim of fibrocartilage extending beyond the edge of the glenoid cavity. D. the ligament extending from the head of the humerus to the glenoid cavity.
Renal columns are
A) internal cavities lined by the fibrous capsule. B) expanded ends of the ureters. C) the basic functional units of the kidney. D) bundles of tissue that extend between pyramids from the cortex. E) conical structures that are located in the renal medulla.
Soft tissue such as muscles shows up as light areas on X-rays.
Answer the following statement true (T) or false (F)
What is the best explanation for the observation that mitosis occurs in the deepest layers of the epidermis?
A. Cells are dead in the top layer of the skin. B. Cells undergo apoptosis in upper layers of the epidermis. C. Protein granules accumulate in the cytoplasm of cells as they move up the layers. D. Mitosis requires oxygen and nutrients supplied by blood vessels. E. The cells in the deepest layer of the epidermis are metabolically active.