In a whiplash injury, the neck undergoes forced hyperextension then hyperflexion, injuring multiple muscles in the neck. Which of the following muscles would be injured during the hyperextension phase of the injury?
A. Trapezius
B. Splenius capitis
C. Sternocleidomastoid
D. Semispinalis capitis
E. Levator scapulae
C. Sternocleidomastoid
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If the concentration of sodium chloride in the interstitial fluid surrounding cells decreases and the concentration of other solutes remains constant,
A) the cells will shrink. B) the cells will swell. C) the fluid outside of the cells will become isotonic. D) the fluid outside of the cells will become hypertonic. E) the cells will not change.
Which structure in the diagram is the olfactory epithelium?
a) C b) D c) G d) K e) F
All sensory systems work in the same general way. They transduce an incoming stimulus into changes in membrane
A) Potential. B) Capacitance. C) Refractory period. D) Fluidity.
Physiological dead air space is anatomic dead space plus
A. tidal volume. B. the residual volume. C. the volume of blood flowing to the lungs. D. the respiration rate. E. the volume of any alveoli where gas exchange is diminished.