Inguinal Region Flashcards
Roof of Inguinal Canal
2 Muscles
- Internal oblique
- Transversus Abdominus fibers
Anterior Wall of Inguinal Canal
2 Aponeuroses
- External Oblique
- Reinforced by internal oblique
Floor of Inguinal Canal
2 Ligaments
- Lacunar ligament
- Inguinal ligament
Posterior Wall of Inguinal Canal
2 Tendons
- Transversalis fascia
- Conjoint Tendon
Deep Inguinal Ring
Entrance
Oval opening in transversalis fascia
Superficial Inguinal Ring
Exit
Above pubic tubercle
Hesselbach’s Triangle- Boundaries
Where direct hernia’s can occur
Superficial- inferior epigastric vessels
Medially- rectus abdominus
Inferior- inguinal ligament
Ligaments of Inguinal region
- Inguinal Ligament
- Lacunar Ligament
- Pectineal Ligament
Inguinal Ligament
Runs from ASIS to pubic tubercles
Lacunar Ligament
Connects inguinal ligament to pubic ramus
Thickened region
Pectineal Ligament
Lateral part of lacunar ligament
What are the contents of the inguinal canal for males?
Spermatic cord
Genital nerve
Ilioinguinal Nerve
What are the contents of the inguinal canal for females?
Round ligament
Ilioinguinal canal
External Spermatic Fascia
comes from external abdominal oblique aponeurosis
Cremasteric Fascia
Middle layer
Comes from internal abdominal oblique
runs with cremaster muscles
Internal spermatic fascia
Comes from transversalis fascia
Vas (ductus) Deferens
help transport sperm into abdominal cavity before they come back out again
Development of testes
They begin in the abdomen as retroperitoneal
Descend down via gubernaculum pulling them down
Processus Vaginalis
Early extension of peritoneal cavity into scrotum
Gets pinched off to form tunica vaginalis
Tunica Vaginalis
remnant of processus vaginalis
Cremasteric Reflex
2 nerves in testes that should pull testes up if not twisted
- Ilioinguinal nerve L1
- Genital branch from genitofemoral nerev L1-L2
Direct Hernia
Pass through Hesselbach’s Triangle
Medial to inferior epigastric vessels
Occurs in older males
Often reducible
Indirect Hernia
Pass through inguinal canal
Lateral to inferior epigastric vessels
Occurs in younger males
Irreducible
Femoral Hernia
Fill medial portion of femoral triangle
Inferior to inguinal ligament
More common in females
Often reducible
Incarcerated
trapped and cannot be manually reduced
Strangulation
blood supply is cut off
Is a sports hernia a true hernia?
No, it is a torn muscle in the lower abdominal region