The T-4 nerve (Thoracic spinal nerve 4), which innervates the dermatomic area, supplies sensation to the nipple-areola complex. Lymphatic drainage
Approximately 75% of the lymph from the breast travels to the axillary lymph nodes on the same side of the body, whilst 25% of the lymph travels to the parasternal nodes (beside the sternum bone). : 116  A small amount of remaining lymph travels to the other breast and to the abdominal lymph nodes. The subareolar region has a lymphatic plexus known as the "subareolar plexus of Sappey". The axillary lymph nodes include the pectoral (chest), subscapular (under the scapula), and humeral (humerus-bone area) lymph-node groups, which drain to the central axillary lymph nodes and to the apical axillary lymph nodes. The lymphatic drainage of the breasts is especially relevant to oncology because breast cancer is common to the mammary gland, and cancer cells can metastasize (break away) from a tumour and be dispersed to other parts of the body by means of the lymphatic system. Shape, texture, and support
The morphologic variations in the size, shape, volume, tissue density, pectoral locale, and spacing of the breasts determine their natural shape, appearance, and position on a womans chest. Breast size and other characteristics do not predict the fat-to-milk-gland ratio or the potential for the woman to nurse an infant. The size and the shape of the breasts are influenced by normal-life hormonal changes (thelarche, menstruation, pregnancy, menopause) and medical conditions (e.g. virginal breast hypertrophy).
Still University School of Osteopathic Medicine in Arizona, one of three medical schools in Arizona
Sharing of Ministries Abroad, an international Anglican charity
Society of Mutual Autopsy, a professional association of anthropologists
Student Osteopathic Medical Association, a national student organization of osteopathic medical students
Symphony Orchestra Musician Association, part of the Media, Entertainment and Arts Alliance, Australia

People
Stephen OMalley or SOMA (born 1974), experimental musician and graphic designer
Queen Soma, legendary founder of Kingdom of Funan in the 1st century
Leela Soma, Scottish-based writer, born in Madras
Soma Sara, founder of Everyones Invited, an anti-rape organisation based in the UK

Fictional
Soma, the freely distributed happiness drug in Brave New World
Soma, a character in Is It Wrong to Try to Pick Up Girls in a Dungeon? Prince Soma, a character in Black Butler
Soma Cruz, the protagonist of Castlevania: Aria of Sorrow and Castlevania: Dawn of Sorrow
Soma Peries, a character in Mobile Suit Gundam 00
Soma Schicksal, a character in Gods Eater Burst
Soma Yukihira, the main protagonist in Food Wars!