1. Inguinal Ligament

2. Inguinal Ligament / Poupart’s ligament
Lower border of aponeurosis of Ext. Oblique
Extends from anterior superior iliac spine to pubic tubercle
From pubic tubercle it is reflected to form lacunar ligament
Continuous with fascia lata

3. Subcutaneous Inguinal Ring / External abdominal ring
Triangled shaped opening in aponeurosis of Obliquus externus
Above & lateral to pubic crest
Gives passage to spermatic cord and ilioinguinal n. in male, and to round ligament of the uterus and ilioinguinal n. in female

5. The Lacunar Ligament / Gimbernat’s ligament
Part of aponeurosis of Obliquus externus
Forms medial boundary of femoral ring
Apex corresponds to pubic tubercle
Posterior margin is attached to pectineal line
Anterior margin is attached to inguinal ligament

6. Ligament of Cooper Fibrous band
Extends from the base of lacunar ligament along pectineal line
Strengthened by
Pectineal fascia
Lower attachment of the linea alba (adminiculum lineæ albæ)

7. Conjoint tendon
This tendon is the combine insertion of transversus abdominis and internal oblique muscles in to pubic crest and pectineal line.
Medial posterior wall of inguinal canal is formed by conjoint tendon

9. Boundaries roof Medial crus of aponeurosis of external oblique��
Musculoaponeurotic arches of internal oblique and transverse abdominal��Transversalis fascia (conjoint tendon)
floor
inguinal lig.
Lacunar lig.(medial third of canal only) iliopubic tract (lateral third of canal only)

10. posterior wall:
Conjoint tendon
transversalis fascia
reflected part of inguinal ligament, medial third of canal only)
Deep ing. ring(lateral third of canal only)
anterior wall:
aponurosis of ext.Ob. fleshy part of internal oblique (lateral third of canal only)
Superficial inguinal ring(medial third of canal only)

12. Hesselbach’s Triangle
Boundaries
Medial half of inguinal ligament
Linea semilunaris (lateral border of rectus abdominis)
Inferior epigastric artery
Surgical importance
Not reinforced by conjoint tendon
Potentially weak area
Direct Inguinal hernias protrude through it

14. Mid Inguinal point
Mid point of inguinal ligament

20. Hernia
Direct
Indirect