D. the heart can no longer maintain its regur pur 2. Stress increases the risk of heart disease by
a. increasing the risk of type 2 diabetes.
b. causing plaque to form in arteries.
c. strengthening the heart.
d. increasing blood pressure.

Which two levels of the spine that can undergo flexion and extension?

Which of the following defines scoliosis? a. a posture disorder characterized by the shoulders being rounded and the back hunched b. a posture disorder in which the spine curves up the back like a snake c. a posture disorder characterized by excessive curvature or arch in the lower back d. none of the above

The heart and lung are located in which cavity ? thoracic