ANAT20006 Lecture Notes - Lecture 26: Abdominal Cavity, Abdominal Internal Oblique Muscle, Conjoint Tendon

• School: University of Melbourne
• Department: Anatomy and Neuroscience
• Course: ANAT20006
• Professor: Junhua Xiao

Document Summary

* the first layer is the skin, and then the superficial fascia (fat underlying the skin) * underneath the superficial fascia are muscles (3 paired flat muscles and 2 pairs of vertically oriented muscles) * underneath the flat layer of 3 muscles are transversalis fascia (overlying the 3 paired flat muscles) * underneath the transversalis fascia and between the peritoneum (serous membrane covering anterior abdominal walls and abdominal viscera) is the extraperitoneal fascia (fat) * the three flat layers of muscles are fleshy laterally, but are replaced by aponeurosis medially. * the first layer of the 3 layers of flat muscle. * fibre direction: inferamedial (forwards, downwards/inwards & towards the middle (front pocket muscles)) * attachments superiorly: ribs & corresponding costal cartilage (overlapping costal margins) Inferiorly: iliac crest & asis (anterior superior iliac spine) pubic tubercle & pubic crest. Posterior: associated with posterior abdominal wall muscles.