Cathy develops a tumor in her brainstem that puts pressure on the respiratory centers. Her doctor notices that control of her diaphragm is abnormal and irregular movements occur during inspiration. Responses to sensory input are delayed and abnormal. Which specific respiratory center must be receiving pressure from the tumor?
A)The dorsal respiratory group
B)The ventral respiratory group
C)The pontine respiratory group
D)The diencephalon

Question

Quizplus · Accepted Answer

The dorsal respiratory group (DRG) is primarily responsible for the basic rhythm of respiration and controls the diaphragm, the main muscle involved in breathing. If a tumor puts pressure on the brainstem affecting the respiratory centers, and there are observed abnormalities in diaphragm control and irregular movements during inspiration, it suggests that the DRG, located in the medulla oblongata of the brainstem, is affected. This group plays a critical role in initiating inspiration and processing sensory input related to respiration, which aligns with the symptoms described.

Cathy Develops a Tumor in Her Brainstem That Puts Pressure