The primary function of the proximal convoluted tubule is
A) filtration.
B) reabsorption of ions, organic molecules, vitamins, and water.
C) secretion of acids and ammonia.
D) secretion of drugs.
E) adjusting the urine pH.
B
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Answer the following statement true (T) or false (F)
Answer the following statements true (T) or false (F)
1. Third-degree burns can damage tissue down to the bone. 2. The nails are accessory structures of the integumentary system. 3. The skin is an accessory structure of the integumentary system. 4. A thin sheetlike structure in the body can be referred to as a membrane. 5. The skin can be considered both a cutaneous membrane and a connective tissue membrane.
Which of the following areas of the conduction system would produce spontaneous action potentials most frequently if the SA node were not functioning?
A. The pacemaker B. AV node C. AV bundle D. Bundle branch E. Purkinje fibers
The superior portion of the esophagus contains smooth muscle in its wall.
Answer the following statement true (T) or false (F)