Compact bone is created over the surface of spongy bone by ________.
A. osteoprogenitors
B. osteoclasts
C. osteons
D. osteoblasts
Answer: D
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The gracilis, hamstrings, and sartorius are involved in extending the lower leg.
Answer the following statement true (T) or false (F)
Place the following parts of the cardiac conduction system in the order in which they transmit the action potential
1. atrioventricular (AV) bundle 2. Purkinje fibers 3. sinoatrial (SA) node 4. right and left bundle branches 5. contractile cells of cardiac muscle tissue 6. atrioventricular (AV) node A) 3, 6, 1, 4, 2, 5 B) 3, 1, 6, 4, 5, 2 C) 3, 6, 4, 1, 2, 5 D) 3, 1, 6, 4, 2, 5
Calcitonin is a hypocalcemic hormone while parathyroid hormone (PTH) is a hypercalcemic hormone
Indicate whether the statement is true or false
An amino acid may act as a proton acceptor or donor. Explain.
What will be an ideal response?