Musculoskeletal System. When the body is stressed, muscles tense up. Muscle tension is almost a reflex reaction to stress — the body's way of guarding against injury and pain. With sudden onset stress, the muscles tense up all at once, and then release their tension when the stress passes.
Answer: acute stress paradigm
Explanation:
Acute stress paradigm is the stress reactivity that is used to study the subjects with the large sample sizes. It is the done in the laboratory settings and it is a labor intensive and instrument requiring process. The subjects are exposed to the short term stress events and their response in terms of physiological, psychological and neuroendrocine levels are recorded.
Answer:
muscles -D
Explanation:
the circulatory system consists of three independent systems that work together the heart, the lungs, and arteries, veins , coronary and portal vessels .