Modifiers that affect heart rate are _______.
A) agonists
B) antagonists
C) inotropic
D) chronotropic
Ans: D) chronotropic
Anatomy & Physiology
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Central organ of the lymphatic system is:
(a) tonsils (b) thymus (c) spleen (d) lymph nodes
Anatomy & Physiology
Brain metabolism may be best studied by ________.
A. computed tomography B. magnetic resonance imaging C. positron-emission tomography D. electroencephalography
Anatomy & Physiology
Which system removes excess carbon dioxide from the blood?
A) urinary system B) respiratory system C) digestive system D) cardiovascular system E) endocrine system
Anatomy & Physiology
Rigor mortis occurs because
A. the body temperature drops. B. there are no brain waves. C. there are no nerve signals. D. there is no ATP to relax the muscles.
Anatomy & Physiology