i am not going to go into the history of each of those topics but take into consideration the columbian exchange as the very beginning of the other two events it is when america was first beginning to become the new world and as time went on and the native americans were made scarce by disease and murder europeans eventually americans
In a patient with a ruptured Achilles tendon, the foot will not move. That is called a positive Thompson test. The Thompson test is important because some people who tear their Achilles are still able to point their toes downwards, although the Thompson test would still be positive.
Achilles tendon tear or rupture. An Achilles tendon can partially tear or completely tear (rupture) . A tear usually occurs in the tendon about 1.5 in. (3.8 cm) to 2.5 in. (6.4 cm) above where it attaches to the heel bone. Some doctors believe that this area is most likely to tear or rupture because of a limited blood supply.