Which of the following interactions between electrical and chemical gradients does not lead to the establishment of a neuron's resting potential?
A) Chemical and electrical forces both favor sodium ions entering the cell.
B) Electrical forces push sodium ions out of the cell.
C) Chemical forces tend to drive potassium ions out of the cell.
D) Potassium ions are attracted to the negative charges inside the cell.
E) Potassium ions are repulsed by positive charges outside the cell.
Answer: B
You might also like to view...
Which of the following categories of hypertension drugs lower blood pressure by blocking formation of angiotensin II, which results in vasodilation and decreased aldosterone secretion?
a) Diuretics b) ACE inhibitors c) Beta blockers d) Calcium channel blockers e) Anabolic steroids
A 15% increase in blood pressure would result in which of the following changes in ADH secretion?
A. increased secretion B. decreased secretion C. no change in secretion
Which ligament supports the posterior of the knee?
A) popliteal B) tibial collateral C) fibular collateral D) patellar
Which of the following statements applies to the autonomic nervous system?
A. The ANS innervates skeletal muscle. B. ANS functions are consciously controlled. C. The ANS controls unconscious movement of skeletal muscles. D. The receptor molecules of the ANS may be muscarinic, nicotinic, or adrenergic. E. A single neuron from the spinal cord carries action potentials to effector organs in the ANS.