At which point does the arm rotate??
Solution-
Assuming you are asking about 'at which part' arm rotates ,below is the answer -
The arm rotates on the cup like depression which is glenoid cavity.
The arm joint is ball and socket joint type which is a type of synovial joint in which the ball-shaped surface of one rounded bone fits into the cup-like depression of another bone.
Assuming you are asking about 'at which part' arm rotates ,below is the answer -
The arm rotates on the cup like depression which is glenoid cavity.
The arm joint is ball and socket joint type which is a type of synovial joint in which the ball-shaped surface of one rounded bone fits into the cup-like depression of another bone.