2. A football player reports of pain in the left arm near the shoulder after a tackle. Pain is worse when he moves his arm so it is level with this shoulder. When
he brings his hand to his shoulder and then puts his hand back down, he is
pain free. There are no issues if he pushed or pulls with both arms. When his
arm is palpated in the middle, it is sore.
a) Can you rewrite the above (the parts that are underlined) using anatomical
terms? (the last underlined section, you should name the bone part that is in
that area).
b) What muscle(s) is/are affected?
c)What exercise/movements can he do, to help strengthen the area?

Juan and carol were studying invertebrates in biology. they knew that segmented or earth worms preferred a dark, moist habitat. during this lab, they would be investigating the responses of organisms called planaria or dugesia tigrina. these were simple flatworms that still had a one-way digestive system and a very simple nervous system. juan and carol placed the planaria in a petri dish containing cool, distilled water that was partially covered with black paper. they shined a light on the dish. next, they removed the paper and placed a small amount of chicken liver at one end of the dish. they added a few large salt crystals to the water. finally, they added drops of hot water to the cool water in the petri dish. their results can be seen in the data table. according to their experiment, all but one conclusion is valid.