Chemoreceptors sensitive to blood oxygen levels are primarily located in the
A. medulla oblongata.
B. carotid arteries.
C. right atrium.
D. left ventricle.
E. jugular veins.
B
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A) Hiatal B) Cholecystic C) Celiac D) Hepatic
What is the greatest risk factor for skin cancer?
A. Exposure to UV light rays B. Advanced age C. Being a female D. Low skin hydration levels E. Using excessive sun block
What does "striated" mean, as it applies to skeletal muscle?
A. It means that the tissue appears striped, due to the repeating pattern of the A bands and I bands in the sarcomeres. B. It means that skeletal muscle action can be willed to occur. C. It means that skeletal muscle tissue consists of motor units. D. It means that skeletal muscle appears striped, due to alternating Z and M lines in each sarcomere. E. It means that the tissue appears striped, due to the pattern formed by multinucleated cells.
Which ligament holds the radius to the ulna at the proximal end?
A) anular B) ulnar collateral C) radial collateral D) iliofemoral