Omar Is Experiencing IBS

question 58

Multiple Choice

Omar is experiencing IBS.Doctors consider all of the following to be possible triggers for his problem EXCEPT

• A)stress and depression.
• B)changes in hormone levels.
• C)disruptions in signaling between the brain and the gut.
• D)a sedentary lifestyle.

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Definitions:

Purkinje Fibers

Specialized conducting fibers located in the heart's ventricles that help regulate the heart's rhythm.

Heart Skeleton

Fibrous connective tissue that provides a point of attachment for cardiac muscle cells, electrically insulates the atria from the ventricles, and forms the fibrous rings around the valves.

Electrical Insulation

Materials or systems that prevent the passage of electrical current, used to protect, isolate, and contain electrical conductors.

Atria

The two upper chambers of the heart that receive blood from the veins and pump it to the ventricles.