Inguinal triangle

Bounded by:

• Medially: Linear semilunaris (lateral edge of Rectus abdomis)
  
  
• Inferiorly: Inguinal ligament
  
  
• Supero-laterally: Inferior epigastric artery

Comprises of structures running to and from the testis, surrounded by structures derived from the anterior abdominal wall. Traverses entire inguinal canal

Coverings

• Internal spermatic fascia - from transversalis fascia
• Cremasteric fascia - from fascia of internal oblique
• Cremaster muscle - from internal oblique abdomen
• External spermatic fascia - from external oblique

• 1.Autonomic nerve plexus
• 2.Testicular artery; artery to ductus deferens, cremasteric artery
• 3.Pampiniform plexus of veins
• 4.Ductus deferens
• Lymph vessels
• Remnants of processus vaginalis

• Genital branch of genitofemoral nerve supply cremasteric muscle.
  
  
• Stroking the area of supply of the femoral branch (superomedial thigh) stimulates the muscle, pulling up the testis – this is the cremasteric reflex.
  
  
• Easy to demonstrate in children, but gets weaker with age.