When a fracture begins to heal, one type of bone cell moves into the fracture site and tears down the damaged bone tissue. Which of the following does this?
A. Osteoclasts
B. Osteons
C. Matrix cells
D. Osteocytes
E. Osteoblasts
Answer: A
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Answer the following statements true (T) or false (F)
1. The entire responsibility for urine formation lies with the nephron. 2. Urine is 95% water by volume. 3. The act of emptying the bladder is called voiding. 4. Glomerular filtration is an ATP-driven process. 5. In the absence of hormones, the distal tubule and collecting ducts are relatively impermeable to water.
Ubiquitin-tagged proteins are destined for lysosomal degradation
Indicate whether the statement is true or false
The filtration coefficient (Kf)
a. is affected by the contractile activity of the filtration membrane. b. is affected by the amount of K+ in the filtrate.. c. is inversely related to GFR which means when Kf decreases the GFR increases. d. is regulated by the parasympathetic nervous system. e. all of these.