Three nuclei within the medulla oblongata function as vital centres for controlling heart rate, blood pressure and _________________:
a) rate and depth of breathing
b) emotions
c) body temperature
d) water and electrolyte balance
Ans: a) rate and depth of breathin
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A joint capsule is reinforced by
A. ligaments binding articular ends of bones together. B. articular cartilage cushioning ends of bones. C. tendons binding articular ends of bones together. D. hyaline cartilage providing strength to the capsule walls.
In chemical notation, the symbol Ca2+ means
A) two calcium atoms. B) a calcium ion that has lost two electrons. C) a calcium ion that has gained two protons. D) a calcium ion that has gained two electrons. E) a calcium ion that has lost two protons.
When Harry stepped on a nail, inflammation and infection were severe, but localized. Which of the following functions limited the size of the injured area to the greatest degree?
A. Increased temperature B. Coagulation of plasma proteins C. Loss of function D. Vasodilation E. Swelling
Hydrochloric acid in the stomach has what pH?
A. 0.08 B. 0.8 C. 8.0 D. None of these are correct.