The anterior boundary of the "rib cage" is the
A. ribs.
B. sternum.
C. costal cartilages.
D. thoracic vertebrae.
E. skin.
B
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Sally has had too many alcoholic drinks. Alcohol is a systemic vasodilator and it increases urine volume, thereby decreasing blood volume. In order to maintain cardiac output, what can her body do?
A. Increase total peripheral resistance (TPR) B. Increase heart rate C. Increase stroke volume D. Decrease heart rate E. Decrease stroke volume
Blood from the superficial structures of the head and neck is collected by the
A) vertebral vein. B) axillary vein. C) brachiocephalic vein. D) internal jugular vein. E) external jugular vein.
Most amino acids are essential amino acids.
Answer the following statement true (T) or false (F)
What is the smallest living level of organization?
A) cellular level B) chemical level C) organ level D) organ system level E) tissue level