A patient with lack of oxygen to his heart will have pain in his chest and also possibly the shoulder,arms,or jaw.Which of the following best explains why this occurs?
A)There is a problem with the sensory cortex and its ability to discriminate the location.
B)The lack of oxygen in his heart has resulted in decreased amount of oxygen to these areas.
C)The sensory cortex does not have the ability to localize pain in the heart,so the pain is felt elsewhere.
D)There is a lesion in the dorsal root that is preventing the sensation from being transmitted normally.

Question

Quizplus · Accepted Answer

The sensory cortex is arranged in a specific pattern,forming a corresponding "map" of the body.Pain in the right hand is perceived at a specific spot on the map.Some organs are absent from the brain map,such as the heart,liver,and spleen.Pain originating in these organs is referred because no felt image exists in which to have pain.Pain is felt "by proxy" by another body part that does have a felt image.

A Patient with Lack of Oxygen to His Heart Will