What Is the Transversus Abdominus?

Transversus abdominis: The innermost broad muscle of the abdominal wall. Most of it is covered by the internal oblique muscle, and the uppermost muscle fiber is covered by the rectus abdominis, which is the deepest and thinnest of the latissimus abdominis. The starting point is broad, from the top of the 7th to 12th rib cartilage inner surface (interlaced with the diaphragm muscle teeth), anterior layer of thoracolumbar fascia, anterior iliac crest, lateral 1/3 of inguinal ligament.

Transversus abdominis: The innermost broad muscle of the abdominal wall. Most of it is covered by the internal oblique muscle, and the uppermost muscle fiber is covered by the rectus abdominis, which is the deepest and thinnest of the latissimus abdominis. The starting point is broad, from the top of the 7th to 12th rib cartilage inner surface (interlaced with the diaphragm muscle teeth), anterior layer of thoracolumbar fascia, anterior iliac crest, lateral 1/3 of inguinal ligament.

Chinese name

Transverse abdominal muscles

Foreign name

transversus abdominis muscle

Location

Innermost layer of abdominal muscles

Muscle fiber direction

Vertical

starting point

Lumbar transverse process and medial side of costal arch

End position

Ventral white line

Function

Form the abdominal wall to protect the abdominal organs

Anatomy and Function of Transverse Abdominal Muscle

The muscle fibers migrate inwardly from the aponeurosis to the ventral white line and participate in the composition of the posterior layer of the rectus sheath and the ventral white line.

It has the physiological functions of maintaining and increasing abdominal pressure, assisting cough, defecation and childbirth, etc. In sports, the abdominal muscles also participate in the completion of the belching action. This muscle is innervated by the lower 6 pairs of the thoracic nerve and the first lumbar nerve, the iliac inguinal nerve, and the inferior iliac inferior nerve. Abdominal trauma affects this muscle.

Research on Clinical Techniques of Transverse Abdominal Muscle

1. The nerves that govern the anterior abdominal wall travel through the nerve fascia layer between the lateral abdominal wall and the abdominal oblique muscle and transverse abdominal muscle. Injecting local anesthetic into the fascial layer between the abdominal oblique muscle and transverse abdominal muscle can block the Abdominal wall nerves that produce good analgesia in the abdominal wall area. This block method is called transverse abdominal muscle block.

2. Advantages: Transverse abdominal muscle block is operated under ultrasound guidance, that is, the ultrasound probe is placed on the lateral abdominal wall, and the needle is inserted after imaging to the transverse abdominal muscle plane. Ultrasound-guided puncture to visualize the operation, dynamically monitor the direction of the puncture needle, show the position of the blood vessel and observe the diffusion of the drug, avoid the intravascular injection, ensure that the local anesthetic is accurately injected into the transverse abdominal muscle plane, and increase the block The success rate shortens the operation time and the block onset time, improves the block success rate and ensures safety, and reduces various complications. TAB block medication should follow the principle of local anesthetic use, that is, low-concentration and large-volume abdominal transverse muscle block.

3. In recent years, domestic TAB technology has been gradually applied to various operations, such as hysterectomy, cesarean section, abdominal surgery, laparoscopic surgery, and postoperative analgesia. TAB under ultrasound guidance improves the success rate of block, shortens the operation time and the time of onset of block, and can minimize the occurrence of complications. Therefore, it shows its advantages over epidural analgesia.

4. Complications: It has been reported that 2% of patients with transverse abdominal muscle block will have intraperitoneal injection, intestinal hematoma, spleen contusion, renal contusion, transient femoral nerve block. If the needle is inserted too fast, the possibility of damaging large blood vessels . Therefore, it is recommended to choose a suitable thick and blunt puncture needle during TAB puncture to reduce the concentration and dosage of local anesthetic to reduce the incidence of femoral nerve block. Withdraw before each injection to prevent intravascular injection and minimize complications.

5. Future development: Ultrasound-guided TAB block is a new technique combined with imaging and nerve block. It has been proved that this method can effectively reduce intraoperative and postoperative pain in patients undergoing abdominal surgery, and the positioning is accurate. , High safety, can be widely used in clinical. However, since the clinical application of this technology is still in its infancy, its effectiveness and safety need to be verified by a large number of clinical cases.

Transverse Abs

1. The transverse abdominal muscle is one of the important deep muscles to maintain spinal stability and is easy to palpate. The transverse fibers of the transverse abdominal muscle form a broad "protective band" directly around the abdominal spine. Cresswel believes that the mechanical role of transverse abdominal muscles is to maintain spinal stability by adjusting intra-abdominal pressure, or the spine is transmitted through the thoracolumbar fascia. The role of force. Of course, there are other functions of the transverse abdominal muscles, such as assisting breathing and controlling spinal motion.

2. Most movements of the human body are systemic exercises involving multiple joints and multiple muscle groups. During exercise, the core region of the transverse abdominal muscles is the hub of the limbs and head. Core area balance stability directly affects the movement of the distal limbs of the body. The core strength is coexisting with the strength of the upper and lower limbs, which is indispensable in people's daily sports and fitness, life, and work. Therefore, strengthening the core strength training and evaluation is of great significance for the effective completion of sports, daily work, and prevention of injuries.

3. Compared with ordinary barbell training, inertial barbells have a greater enhancement effect on transverse abdominal muscle activity, which indirectly proves that it has a better effect on core strength training.