Pick a body function that requires at least two different organ systems to perform. The function can be involuntary or voluntary. Design a model that shows how these systems work together. You may want to localize the function to a specific body part. For example, running involves many muscles and bones, which may make it difficult to model. However, you can focus on a specific motion for running, such as bending the knee joint.

what effect does exercise have on the nervous system?

the answer is c.

when in a crucial situation, after calling 911, the correct posture for delivering effective compression is the proper hand placement.

first, place two fingers at the sternum, then put the heel of your other hand next to the fingers and place hand on top of the other. lock your elbows by using your body’s weight and compress the victim’s chest with a depth of 2 inches.

moreover, do 15 compression and 2 breaths, this process must be done four times until there is a pulse or a arrive.