What is the insertion of the muscle labeled A?
A)costal cartilage of the second to sixth ribs
B)intertubercular sulcus of humerus
C)ulnar tuberosity
D)spines of T7-L5 vertebra
E)crests of sacrum and ilium

Question

What is the insertion of the muscle labeled A? 
A)costal cartilage of the second to sixth ribs 
B)intertubercular sulcus of humerus 
C)ulnar tuberosity 
D)spines of T7-L5 vertebra 
E)crests of sacrum and ilium

Quizplus · Accepted Answer

The insertion of the muscle labeled A is the intertubercular sulcus of humerus, which corresponds to the groove between the greater and lesser tubercles of the humerus. Therefore, option B is the correct answer. The other options refer to the insertion points of other muscles.

What Is the Insertion of the Muscle Labeled A