What happens to the diaphragm when it contracts?
A. It becomes dome-shaped and aids in expiration.
B. It becomes dome-shaped and aids in inspiration.
C. It becomes flatter and aids in inspiration.
D. It becomes flatter and aids in expiration.
C. It becomes flatter and aids in inspiration.
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An army recruit has been called to military attention and has thrown back her shoulders. This action involves which of the following?
A. Hyperextension of her elbows B. Hyperextension of her shoulders C. Elevation of her shoulders D. Retraction of her shoulders E. Lateral excursion of her shoulders
Which part of the reflex arc is activated by a stimulus?
A) integrating center B) afferent neuron C) receptor D) efferent neuron
The sagittal suture is between the ________.
A. sacrum and hipbone. B. alveolar process and tooth. C. two pubic bones. D. two parietal bones. E. atlas and axis.
Which of the following skeletal parts are most affected by osteopenia?