Which of these statements describes a function of fontanels?
a. Fontanels protect the brain as the young child begins to walk.
b. Fontanels connect regions of the developing brain.
c. Fontanels allow the fetal skull to be compressed slightly during childbirth.
d. Fontanels compress the brain so that it will not grow too fast during infancy.
Answer: c. Fontanels allow the fetal skull to be compressed slightly during childbirth.
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Answer the following statement true (T) or false (F)
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Answer the following statement true (T) or false (F)
Which of the following is true regarding joints that are first-class levers?
A) Their resistance is between the joint (fulcrum) and the distal end of the bone (effort). B) The joint (fulcrum) is at the opposite end from the tendinous insertion (effort). C) Their mechanical advantage is always less than 1.0. D) Their output force is always greater than the input force. E) Their mechanical advantage may be either greater or less than 1.0.