Which is FALSE about the equilibrium potential of a given ion across a membrane?
A. It is a function of the concentration of that ion on both sides of the membrane.
B. It is the potential at which there is no net movement of that ion across the membrane.
C. It is the potential difference across the membrane at which an electric force favoring movement of the ion in one direction is equal in magnitude and opposite in direction to the diffusion force provided by the concentration difference of the ion across the membrane.
D. A permeable ion will move in the direction that will tend to bring the membrane potential toward that ion's equilibrium potential.
E. An anion that is in higher concentration inside the cell than outside the cell will have a negative eqilibrium potential.
E
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Which of the abdominal muscles has its inferior attachment on the superior surface of the pubis?
A. External oblique B. Rectus abdominis C. Transversus abdominis D. Internal oblique E. None of these choices is correct.
Match the change in gas composition with the response (disregard weak responses).
1. Arterioles: systemic constrict, pulmonary dilate. 2. Bronchioles and systemic arterioles dilate. 3. Arterioles: systemic dilate, pulmonary constrict. 4. Bronchioles and systemic arterioles constrict. A. PO2 increases. B. PCO2 increases. C. PO2 decreases. D. PCO2 decreases.
Which bone articulates in the acetabulum?
A. Femur B. Humerus C. Calcaneus D. Tibia
The pulmonary circuit is the only route in which arteries carry less oxygen than veins
Indicate whether the statement is true or false