What best describes hydrostatic pressure?
A) Hydrostatic pressure is created by the number of solute particles present in solution.
B) Hydrostatic pressure is created by the number of proteins present in solution.
C) Hydrostatic pressure is the force that fluids exert against the capillary wall.
D) Hydrostatic pressure is the force that proteins exert in solution.
Answer: C
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How is most of the carbon dioxide transported by the blood in humans?
A) bicarbonate ions in the plasma B) CO2 attached to hemoglobin C) carbonic acid in the erythrocytes D) CO2 dissolved in the plasma E) bicarbonate attached to hemoglobin
The MOST effective way for the paramedic to minimize further injury in a patient with a spinal injury is:
A) prompt transport of the patient to a trauma center. B) rapid administration of corticosteroid medications. C) aggressive administration of IV crystalloid solutions. D) spinal motion restriction and prevention of heat loss.
While Carly was playing soccer, she was kicked in the anterior thigh by an opposing teammate. Due to this injury, what muscle function may have been difficult to perform?
a. extending the knee b. flexing the knee c. extending the thigh d. dorsiflexing the foot
When muscle is stimulated directly to contract, does the rising phase of the twitch begin immediately? If not, why not?
A) No, the rising phase occurs only after a substantial number of muscle fibers have contracted. B) Yes, it does begin immediately. C) No, the falling phase of the twitch must occur first. D) No, electrical and chemical changes at the muscle membrane must occur before contraction.