Which is TRUE about the resting membrane potential?
A. It requires very few ions to be distributed unevenly.
B. It has the same value in all cells.
C. It is oriented so that the cell's interior is positive with respect to the extracellular fluid.
D. Only nerve and muscle cells have a potential difference across the membrane at rest.
E. It is not altered by changing concentration gradients of permeating ions.
A
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Eleven-year-old Harry is complaining of a severe sore throat and gets to stay home from school. His pediatrician prescribes a course of broad-spectrum antibiotics, and Harry feels much better within a few days
However, some two weeks later, Harry has a dull, bilateral pain in his lower back and his urine is a smoky brown color. On the basis of Harry's signs and symptoms, diagnose his condition and indicate the relationship (if any) between his present condition and his earlier sore throat. What will be an ideal response
The main homeostatic function that occurs as a result of the work of the nephron loop is
A) water and salt conservation. B) variable absorption and active secretion. C) production of the filtrate. D) active and passive reabsorption. E) None of the answers are correct.
Which of the following is true of the process of casting?
A) Rings are placed in animals' noses to discourage rooting. B) Ropes place an animal in lateral recumbency. C) Piglets are moved between litters to balance litter size. D) Blood is collected using a restraining device.
There are four posterior thoracic muscles. Select the exception.
A. Levator scapulae B. Subclavius C. Trapezius D. Rhomboid minor E. Rhomboid major