Respuesta :
Answer:
The straightened arm , the triceps contract, bicep relax. the contracting triceps pull on the tendon, so the ulna moves down wards.
Explanation:
Answer:
we couldn't move our arms
Explanation:
When bicep contracts the tendons transmitted the pulling force to the radius and scapula . and the result that the scapula and radius are pulled.
Hope this helps :)
-ilovejiminssi