In evaluating a breast lesion in a female athlete, the surgeon notes that the tumor is in the anterior axillary line. To which site does the lateral edge of normal breast tissue extend?
The breast tissue extends over the medial margin of the serratus anterior muscle. The nerve to the serratus anterior lies on the lateral aspect of this muscle and may be accidentally injured during breast surgery.
The lateral edge of the pectoralis major muscle
The medial edge of the pectoralis minor muscle
Cover the medial third of the serratus anterior muscle
The semispinalis capitis
Breast