inguinal canal Flashcards
(11 cards)
anterior abdominal wall
External oblique aponeurosis
Internal oblique aponeurosis/muscle – reinforces the lateral 1/3
roof of inguinal canal
Transversalis fascia
Arching fibres of transversus abdominus and internal oblique aponeurosis (conjoint tendon)
External oblique aponeurosis
poster abdominal wall of inguinal wall
Internal oblique
aponeurosis - medial 1/3
Conjoint tendon – medial 1/3
Transversalis fascia – lateral 2/3
floor of inguinal canal
Inguinal ligament, forms gutter
Iliopubic tract – laterally
Lacunar ligament - medially
contents of inguinal canal in females
- round ligaments of uterus
- genital branch of genitofemoral nerve, enters at deep inguinal ring and exits at superficial inguinal ring (sensory)
- ilioinguinal nerve (motor and sensory)
content of inguinal canal in males
- spermatic cord
- ilioingiunal nerve- pierces internal oblique aponeurosis to inguinal canal, exits at superficial inguinal ring
(motor and sensory)
inguinal hernia
- the protrusion of an abdominal organ through the peritoneal wall
direct hernia
Acquired – occurs later in life
Only travels through superficial inguinal ring
Not within spermatic cord in the male
Origin is medial to inferior epigastric vessels
indirect hernia
Congenital – born with it
Travels through both the deep and superficial inguinal rings
Within spermatic cord in the male, so hernia can end up in the scrotum.
Origin is lateral to inferior epigastric vessels
Caused by the processus vaginalis not closing fully in development
inguinal hernias clinical presentation
Dependent on size and severity of the hernia
May have strangulation
More common in indirect hernias
Usually, a visual protrusion superior and medial to the pubic tubercle
Not in indirect hernia in the male as within spermatic cord
May increase in size with exertion
Pain
May be asymptomatic
treatment
Only through surgery
Hernia mesh placed over weakened aperture
