Transversalis fascia

Transversalis Fascia is a thin layer of connective tissue that lies between the transversus abdominis muscle and the peritoneum. It is part of the deep fascia of the abdomen, which plays a crucial role in the structure and function of the abdominal wall.

Etymology

The term "transversalis" is derived from the Latin "transversus", meaning "crosswise" or "transverse", and "fascia" is a Latin term meaning "band". Thus, "transversalis fascia" refers to the band of tissue that runs crosswise in the abdomen.

Anatomy

The transversalis fascia is a thin aponeurotic membrane which lies between the inner surface of the transversus abdominis and the parietal peritoneum. It forms part of the general layer of fascia lining the abdominal wall which is continuous with similar fascia on the undersurface of the diaphragm and pelvic floor.

Clinical Significance

The transversalis fascia is of clinical significance in abdominal surgery, particularly in the repair of hernias. It forms the posterior wall of the inguinal canal, and is therefore involved in the formation of inguinal hernias. It is also involved in the formation of femoral hernias.

Related Terms

• Fascia: A band or sheet of connective tissue, primarily collagen, beneath the skin that attaches, stabilizes, encloses, and separates muscles and other internal organs.
• Transversus abdominis muscle: The deepest (innermost) layer of the three flat muscles of the lateral anterior abdomen.
• Peritoneum: The serous membrane forming the lining of the abdominal cavity or coelom in amniotes and some invertebrates.

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