Question

body - builders and gym enthusiasts tend to focus training on pectoralis major. this fact combined with a lack of stretching causes the constant and stereotypical internal rotation of the hands in a neutral position. fill in the blank: _ syndrome is a rare congenital condition in which the pectoralis major is missing. the other pectoralis chest muscle is the pectoralis _

Explanation:

The first blank refers to Poland - syndrome which is a rare congenital condition with absent pectoralis major. The second blank is minor as the two pectoralis muscles are pectoralis major and pectoralis minor.

Answer:

Poland; minor