What is the blood supply to the rectus abdominis muscle?
The rectus abdominis muscle has its arterial blood supply mainly by the superior epigastric (continuation of the internal thoracic) and inferior epigastric arteries (internal iliac branch) which run along the internal surface of the muscle.
What is transversus abdominis innervated by?
It is innervated by the terminal branches of intercostal nerves T7-T11, the subcostal nerve (T12), the iliohypogastric nerve (L1) and ilioinguinal nerves (L1). These nerves arise from the ventral rami of the spinal nerves of T7-L1, and this is the simplified description of innervation described in anatomy textbooks.
What supplies blood to the abdominal wall?
The superior and inferior epigastric arteries provide a rich arcade arising from the internal thoracic artery superiorly and the external iliac artery inferiorly. The musculophrenic artery, deep circumflex iliac artery, and subcostal arteries supply the lateral abdominal wall.
What is the main role of your transversus abdominis?
Along with other core muscles, the main roles of the transverse abdominis are to protect internal organs by holding them in place, and to support the torso by maintaining abdominal wall tension which stabilizes the spine and pelvis before any movement of the limbs can occur.
What is the rectus abdominis?
The rectus abdominis muscles are a pair of long, straight muscles that flex the spine and tighten the intra-abdominal wall. They arise from the symphysis pubis and the pubic crest and insert on the linea alba and at the fifth, sixth, and seventh costal cartilages.
Where are the rectus abdominis?
The rectus abdominis muscles are a pair of long muscles that run vertically up the front of the abdomen, stretching from the pubis to the xiphoid process.
Why is it called transversus abdominis?
The transverse abdominal, so called for the direction of its fibers, is the innermost of the flat muscles of the abdomen.
What is the blood supply of the anterior abdominal wall?
The anterior abdominal wall is supplied by the following: Superior epigastric artery. Inferior epigastric artery. Deep circumflex iliac.
What is the blood supply of the anterior abdominal wall and where does it originate from?
The four origins of the arterial supply of the wall are the internal thoracic artery, aorta, external iliac, and femoral artery—the internal thoracic artery branches to the musculophrenic and superior epigastric arteries.
What is a transversus abdominis release?
Transversus abdominis muscle release (TAR) procedure, as a type of posterior component separation, is a new myofascial release technique in complex ventral hernia repair. TAR creates immense retro muscular plane and allows bilaminar ingrowth of the mesh, allowing primary closure of defect.
What are the arteries in the transversus abdominis?
As a flat muscle, the vascular supply of the transversus abdominis includes the posterior intercostal and subcostal arteries, superior and inferior epigastric arteries, superficial and deep circumflex arteries and posterior lumbar arteries.
What is the transversus abdominis?
The transversus abdominis muscle, named according to the direction of its muscle fibres, is one of the flat muscles that form the anterior abdominal wall.
What nerves supply blood to the transversus abdominis?
Additionally, the iliohypogastric and ilioinguinal nerves (L1) contribute to the nervous supply of this muscle. The transversus abdominis muscle receives its arterial blood supply from the following arteries:
Can transversus abdominis cause abdominal hernia?
Additionally, weakness of transversus abdominis or other abdominal muscles increases the risk for abdominal hernias. The lateral abdominal muscles, including transversus abdominis, also cause compression of the intra-abdominal viscera thereby increasing the intra-abdominal pressure.