Label I represents which of the following structures?
A) renal papilla
B) renal columns
C) renal pyramid
D) major calyx
E) minor calyx
B) renal columns
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Which of the following does NOT aid in protection from friction and mechanical stress at a joint?
A. Menisci in the knee B. Ligaments C. Bursae D. Articular cartilage on bone surfaces
Answer the following statements true (T) or false (F)
1. Cardiac veins empty into the superior vena cava, which drains into the right atrium. 2. One function of arteries is to serve as blood reservoirs. 3. In the capillaries, glucose and carbon dioxide move in opposite directions. 4. A heart that is beating weakly will cause a drop in the central venous pressure. 5. Normal average diastolic pressure is about 120 mm Hg.
Which of the following is the function of hair associated with a nerve fiber?
A) provides an early-warning system that may help prevent injury B) helps cushion a light blow to the head C) protects the scalp from UV light D) helps prevent the entry of foreign particles E) provides protection for the surface of the eye
Which of the following would not be affected by the absence of microtubules?
A. Movement of molecules within the cell B. DNA replication C. The arrangement of organelles D. Cell division E. Cell movement