Breast - Physiology & Anatomy

Breast

Physiology & Anatomy

·        3 – 4 days before menses, ­oestrogen and progesterone ® cell proliferation and water retention

·        During pregnancy, cell proliferation.  Post-partum, prolactin ® milk production. 

·        At menopause, breast involution due to replacement of glandular tissue by fibrosis and fat. Occurs with age

·        Superficial and deep fascia form a sandwich around the breast

·        Breast is between the 2^nd and 6^th intercostals spaces