During exercise, blood is redirected to working muscles from other areas.

During exercise, blood is redirected to working muscles from other areas.

• A. All blood remains in the heart
• B. Blood pressure drops dramatically
• C. Blood flow to the gut increases
• D. Blood is sent to working muscles from other areas

Answer: (D)

During exercise the body prioritizes delivering oxygen to working muscles by redistributing blood flow. The heart pumps more blood overall, and vessels to active muscles dilate to allow more blood through, while vessels to nonessential areas such as the gut constrict to reduce flow there. This coordinated shift moves blood from other areas toward the muscles that are doing the work. The statement captures this redistribution. It’s not that blood stays in the heart, blood pressure drops dramatically, or blood flow to the gut increases during exercise.

During exercise the body prioritizes delivering oxygen to working muscles by redistributing blood flow. The heart pumps more blood overall, and vessels to active muscles dilate to allow more blood through, while vessels to nonessential areas such as the gut constrict to reduce flow there. This coordinated shift moves blood from other areas toward the muscles that are doing the work. The statement captures this redistribution. It’s not that blood stays in the heart, blood pressure drops dramatically, or blood flow to the gut increases during exercise.