CMA : Structure and Function of Organs and Organ Systems
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Example Questions
Example Question #1 : Anatomy, Physiology, And Pathophysiology
Activation of the sympathetic nervous system will cause which of the following to occur?
A flattening of the lens
Constriction of the pupil
Dilation of the pupil
Increase in intraocular pressure
A rounding of the lens
Dilation of the pupil
Activation of the sympathetic nervous system will cause dilation of the pupil. Activation of the parasympathetic nervous system will cause constriction of the pupil.
Example Question #2 : Anatomy, Physiology, And Pathophysiology
The intrinsic rate of the pacemaker cells in the AV node is:
the AV node does not contain pacemaker cells
equal to the rate in the SA node
faster than the rate in the SA node
varies (sometimes faster, sometimes slower than the rate in the SA node)
slower than the rate in the SA node
slower than the rate in the SA node
The intrinsic rate of depolarization is slower among the pacemaker cells in the AV node compared to the rate in the SA node.
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