What might be the problem of a person who complains of a sharp cramping pain in the lower back on the left side, which radiates down toward the pelvis?
What will be an ideal response?
This person most likely has a kidney stone. This problem can be diagnosed by making an X-ray of the kidney, ureter, and bladder on that side of the body. Stones will appear as solid white objects on the X-ray, as they are of greater density than many of the surrounding tissues. The radiopaque dye that is introduced into the urinary system will also reveal the blockage location.
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Which movement cannot be made by the radiocarpal joint?
A. Inversion B. Extension C. Adduction D. Flexion E. Abduction
How does the heater organ of a swordfish produce heat?
A) The muscle contracts very rapidly, producing large quantities of heat. B) The myosin binds very weakly to the actin, utilizing large amounts of ATP that ultimately produces heat, but no tension. C) The sarcoplasmic reticulum releases and recovers large amounts of Ca2+, releasing heat as a by-product of these processes. D) The muscle fibers are rapidly generated and degraded, which produces large quantities of heat as a by-product.
The abducens nerve innervates which extrinsic eye muscle?
A) superior oblique B) medial rectus C) inferior oblique D) superior rectus E) lateral rectus
What directly controls blood flow through the cardiovascular system?
A. Cells need blood to survive B. The heart establishes a pressure gradient C. Without blood flow, a person could not survive D. Oxygen and nutrients must be delivered to the body