Stomach Muscle Anatomy

Anatomy of the abdominal muscles. The stomach receives food from the esophagus.

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The muscle fibers merge at the midline surround the rectus abdominus and join on the other side at a point known as the linea alba.

Stomach muscle anatomy. The stomach secretes acid and enzymes that digest food. The abdominal muscles sit on the front and sides of the lower half of the torso originating along the rib cage and attaching along the pelvis. The rectus abdominus transverse abdominus and the external and internal obliques.

Next to it on both sides of the body is the internal oblique. As food reaches the end of the esophagus it enters the stomach through a muscular valve called the lower esophageal sphincter. It enables the tilt of the pelvis and the curvature of the lower spine.

Ridges of muscle tissue called rugae line the stomach. Every year there are dozens of new exercises fitness classes products gadgets or routines claiming to sculpt and strengthen the abdominal muscles like none other. The abdominal muscles form the anterior and lateral abdominal wall and consist of the external abdominal obliques the internal abdominal obliques the rectus abdominis and the transversus abdominis.

Acting together these muscles form a firm wall that protects the viscera and they help to maintain erect posture. The abdominal muscles consist of three distinct layers residing within the abdominal wall and extend to the pubis iliac crest lower ribs and vertebral column. Your external obliques sit on either side of your rectus abdominis and are actually the largest of your abdominal muscles.

This wide muscle helps to rotate the spine increases pressure within the abdomen needed for certain functions such as defecating and assists with breathing movements. The abdominals are composed of several muscles. And while some of these may offer a new approach to working the abs many are ineffective and may increase your risk of injury.

This is the muscle that allows the trunk of your body to twist this is controlled by the external oblique muscle on the opposite side of the direction that youre twisting. Picture of the stomach.

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