Stomach Muscle Anatomy

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

Rectus Abdominus Stomach Muscles Human Anatomy 3d

Anatomy of the abdominal muscles.

Stomach muscle anatomy. 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 abdominal muscles consist of three distinct layers residing within the abdominal wall and extend to the pubis iliac crest lower ribs and vertebral column. The rectus abdominus transverse abdominus and the external and internal obliques.

It enables the tilt of the pelvis and the curvature of the lower spine. 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. Your external obliques sit on either side of your rectus abdominis and are actually the largest of your abdominal muscles.

Picture of the stomach. The stomach secretes acid and enzymes that digest food. 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.

The stomach receives food from the esophagus. Ridges of muscle tissue called rugae line the stomach. The abdominals are composed of several muscles.

Acting together these muscles form a firm wall that protects the viscera and they help to maintain erect posture. And while some of these may offer a new approach to working the abs many are ineffective and may increase your risk of injury. Next to it on both sides of the body is the internal oblique.

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. As food reaches the end of the esophagus it enters the stomach through a muscular valve called the lower esophageal sphincter.

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