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Anatomy Of Abdomen Wall

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The borders of the abdominal cavity are comprised of the posterior peritoneal surface the anterior abdominal wall the inferior pelvic inlet and the superior thoracic diaphragm. Flat muscles three flat muscles situated laterally on either side of the abdomen.

11 4 Axial Muscles Of The Abdominal Wall And Thorax

The two vertical muscles are the rectus abdominis and pyramidalis.

Anatomy of abdomen wall. In anatomy the abdominal wall represents the boundaries of the abdominal cavity. Five pairs of thoracoabdominal nerves continue from. At the level of the pelvic bones the abdomen ends and the pelvis begins.

The abdomen functions to house the digestive system and provides muscles essential for posture balance and breathing. In this tutorial i cover the various different layers that a needle passes through when inserted into the abdominal wall from the skin down to the peritoneum. The muscles of the abdomen work together to protect the internal organs viscera by covering them completely and are made up of the muscles of the anterolateral abdominal wall and the muscles of the posterior abdominal wall.

The skin is the most superficial layer of the anterior abdominal wall. The deepest being the visceral peritoneum which covers many of the abdominal organs and the parietal peritoneum which covers the visceral peritoneum below it the extraperitoneal fat the transversalis fascia the internal and external oblique and transversus abdominis apone. The three flat muscles are the external oblique internal oblique and the transversus abdominis.

The abdomen contains all the digestive organs including the stomach small and large intestines pancreas liver and gallbladder. The muscles of the anterolateral abdominal wall can be divided into two main groups. Join the facebook page for updates.

The rectus sheath is a strong fibrous sheath around the rectus abdominis. The abdominal wall consists of five paired muscles. The abdomen contains organs involved in the gastrointestinal tract including the oesophagus stomach small intestine cecum appendix colon rectum and the anal canal.

Vertical muscles two vertical muscles situated near the mid line of the body. These nerves come from the 2nd through 4th lumbar spinal nerves. Anterior abdominal wall regions and quadrants.

These nerves run from the 2nd and 3rd lumbar spinal nerves. Lateral cutaneous nerves of the thigh. The abdominal wall is split into the anterolateral and posterior walls.

The anatomy of the abdominal wall thoracoabdominal nerves. The anterior abdominal wall is highly distensible. The diaphragm forms the upper surface of the abdomen.

There is a common set of layers covering and forming all the walls. It extends to the lumbar spine which joins the thorax and pelvis and is a point of attachment for some abdominal wall structures. Three flat muscles and two vertical muscles.

The abdominal wall is defined cranially by the xiphoid process of the sternum and the costal margins and caudally by the iliac and pubic bones of the pelvis.

Abdomen I The Wall Nelson Biol 2133 Human Anatomy