Oblique muscle of abdomen

Oblique muscle of abdomen

The Oblique muscle of abdomen, as illustrated in Gray's Anatomy.

The Oblique muscle of abdomen is a large, flat muscle group in the anatomical region of the abdomen. It is one of the most important muscles in the human body, playing a crucial role in various physical movements and functions.

Structure

The Oblique muscle of abdomen is divided into two parts: the external oblique muscle and the internal oblique muscle.

External oblique muscle

The external oblique muscle is the largest and the most superficial (outermost) of the three flat muscles in the lateral part of the abdomen.

The External oblique muscle.

Internal oblique muscle

The internal oblique muscle lies just beneath the external oblique muscle and is its direct antagonist.

The Internal oblique muscle.

Function

The Oblique muscle of abdomen is responsible for the twisting and turning movements of the trunk. It also helps in the lateral flexion of the trunk, aids in forceful expiration and supports the abdominal viscera against pull of gravity.

Clinical significance

Damage or strain to the oblique muscles can result in a variety of medical conditions, including abdominal hernias and lower back pain.

See also

• Abdominal exercise
• Rectus abdominis muscle
• Transversus abdominis muscle

External links

• AnatomyZone: Oblique Muscles of Abdomen

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