Which is the definition for a greenstick fracture?
A. The bone is twisted as it fractures.
B. The fracture is at right angles to the long axis of the bone.
C. The bone is splintered into several fragments.
D. Only one side of the bone is broken; the other side is bent.
E. The fracture is at an oblique angle to the long axis of the bone.
D
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Indicate whether this statement is true or false.
Keratinocytes
A. are special cells of the immune system. B. produce skin pigments in cell organelles called melanosomes. C. are found in both the dermal and the epidermal layers of the skin. D. are responsible for the reduction of water loss from the skin. E. determine thickness of the skin.
What hormone stimulates uterine contractions during labor and milk-ejection during lactation?
A. ADH B. Oxytocin C. Luteinizing hormone D. Prolactin
What is the function of the pontine respiratory group?
A. To exert voluntary control over the respiratory system B. When maximum chest expansion has been reached, the medulla oblongata stops sending inspiratory messages which prevents over inflation of the lungs. C. To adjust the transitions from inspiration to expiration D. None of these are correct.