Human Anatomy - Kotsan I. Ya. 2009

Muscles and fascia of the trunk
Abdominal muscles

The abdominal Muscles (musculi abdominis) are topographically divided into three groups:

1) muscles forming the anterior wall of the abdomen;

2) muscles forming the lateral wall of the abdomen;

3) muscles forming the posterior wall of the abdomen.

The Functions of the abdominal muscles are diverse. They are involved in the act of expiration and Movements of the spine; together with the Diaphragm and perineal muscles, they help maintain intra-abdominal pressure, which keeps the abdominal Organs in place. They also contribute to The formation of the abdominal press, which plays a major role in expiration, defecation, urination, and, in women, during childbirth.



Last update: 08/08/2026

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