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Abstract：
OBJECTIVE: Clarify the composition of the Posterior wall of the Inguinal Canal(PWIC), the location and composition of the Transverse Fascia(TF), and the tissue origin of the Cremaster(C) by observing the anatomy of the inguinal region of the cadaver.
METHODS: 30 cadavers were dissected to observe the alignment of the muscles and fascia of the inguinal canal and the anterior peritoneal space. the anatomical levels of the posterior wall of the inguinal canal and the alignment of the Spermatic Cord(SC) were observed.
RESULTS: (1) The posterior wall of the inguinal canal was white, bright, and tough tendon membrane-like tissue; (2) the transverse fascia was a thin fascial tissue with only one layer of membranous structure located in the abdominal wall under the abdominal wall on the side of the blood vessels of the peritoneal cavity; (3) the internal oblique muscle and its tendon membrane, and the transversus abdominis muscle and its tendon membrane extended on the surface of the spermatic cord, and fused and continued to the cremaster on the surface of the spermatic cord.
CONCLUSIONS: 1. PWIC is mainly composed of Internal oblique muscle of abdomen (IOMA), Aponeurosis of internal oblique muscle of abdomen (AIOMA), Transverse abdominal muscle (TAM), and Transverse abdominal aponeurosis(TAA) as the following four types: (1) TAM and AIOMA fused to form a tendinous layer; (2) IOMA and TAM form the posterior wall of the muscle in the PWIC; (3) IOMA and AIOMA continue in the PWIC; 4) TAM and TAA continue in the PWIC. 2.TF is a thin fascial tissue with only one layer of membrane structure, TF is not involved in the composition of PWIC, so this fascia has nothing to do with resisting the occurrence of inguinal hernia. 3. The spermatic cord that travels in the inguinal canal is fixed to the lower wall of the inguinal canal by the tendon membrane of the cremaster, which is organized from the internal oblique and transversus abdominis muscles and their tendon membranes, The inguinal canal is a musculotendinous canal.
METHODS: 30 cadavers were dissected to observe the alignment of the muscles and fascia of the inguinal canal and the anterior peritoneal space. the anatomical levels of the posterior wall of the inguinal canal and the alignment of the Spermatic Cord(SC) were observed.
RESULTS: (1) The posterior wall of the inguinal canal was white, bright, and tough tendon membrane-like tissue; (2) the transverse fascia was a thin fascial tissue with only one layer of membranous structure located in the abdominal wall under the abdominal wall on the side of the blood vessels of the peritoneal cavity; (3) the internal oblique muscle and its tendon membrane, and the transversus abdominis muscle and its tendon membrane extended on the surface of the spermatic cord, and fused and continued to the cremaster on the surface of the spermatic cord.
CONCLUSIONS: 1. PWIC is mainly composed of Internal oblique muscle of abdomen (IOMA), Aponeurosis of internal oblique muscle of abdomen (AIOMA), Transverse abdominal muscle (TAM), and Transverse abdominal aponeurosis(TAA) as the following four types: (1) TAM and AIOMA fused to form a tendinous layer; (2) IOMA and TAM form the posterior wall of the muscle in the PWIC; (3) IOMA and AIOMA continue in the PWIC; 4) TAM and TAA continue in the PWIC. 2.TF is a thin fascial tissue with only one layer of membrane structure, TF is not involved in the composition of PWIC, so this fascia has nothing to do with resisting the occurrence of inguinal hernia. 3. The spermatic cord that travels in the inguinal canal is fixed to the lower wall of the inguinal canal by the tendon membrane of the cremaster, which is organized from the internal oblique and transversus abdominis muscles and their tendon membranes, The inguinal canal is a musculotendinous canal.
摘要：
目的：阐明腹股沟管（PWIC）后壁的组成，横向筋膜(TF)的位置和组成，和Cremaster（C）的组织起源，通过观察尸体腹股沟区域的解剖结构。
方法：解剖30具尸体，观察腹股沟管和腹膜前间隙的肌肉和筋膜的排列情况。观察腹股沟管后壁的解剖水平和精索（SC）的排列。
结果：（1）腹股沟管后壁呈白色，明亮,和坚韧的肌腱膜样组织；（2）横筋膜为薄筋膜组织，仅有一层膜状结构位于腹膜腔血管侧腹壁下腹壁；（3）内斜肌及其肌腱膜，腹横肌及其肌腱膜在精索表面延伸，并融合并继续到精索表面的提炼者。
结论：1.PWIC主要由腹部内斜肌（IOMA）组成，腹部内斜肌腱膜(AIOMA),腹部横肌(TAM),和横向腹肌腱膜（TAA）为以下四种类型：（1）TAM和AIOMA融合形成腱层；（2）IOMA和TAM在PWIC中形成肌肉的后壁；（3）IOMA和AIOMA在PWIC中继续存在；4）TAM和TAA在PWIC中继续存在。2.TF是一种薄薄的筋膜组织，只有一层膜结构，TF不参与PWIC的组成，所以这个筋膜与抵抗腹股沟疝的发生无关。3.在腹股沟管中行进的精索通过提肌的肌腱膜固定在腹股沟管的下壁，由腹内斜肌和腹横肌及其肌腱膜组成，腹股沟管是一条肌腱管。
方法：解剖30具尸体，观察腹股沟管和腹膜前间隙的肌肉和筋膜的排列情况。观察腹股沟管后壁的解剖水平和精索（SC）的排列。
结果：（1）腹股沟管后壁呈白色，明亮,和坚韧的肌腱膜样组织；（2）横筋膜为薄筋膜组织，仅有一层膜状结构位于腹膜腔血管侧腹壁下腹壁；（3）内斜肌及其肌腱膜，腹横肌及其肌腱膜在精索表面延伸，并融合并继续到精索表面的提炼者。
结论：1.PWIC主要由腹部内斜肌（IOMA）组成，腹部内斜肌腱膜(AIOMA),腹部横肌(TAM),和横向腹肌腱膜（TAA）为以下四种类型：（1）TAM和AIOMA融合形成腱层；（2）IOMA和TAM在PWIC中形成肌肉的后壁；（3）IOMA和AIOMA在PWIC中继续存在；4）TAM和TAA在PWIC中继续存在。2.TF是一种薄薄的筋膜组织，只有一层膜结构，TF不参与PWIC的组成，所以这个筋膜与抵抗腹股沟疝的发生无关。3.在腹股沟管中行进的精索通过提肌的肌腱膜固定在腹股沟管的下壁，由腹内斜肌和腹横肌及其肌腱膜组成，腹股沟管是一条肌腱管。
