Ant Abd Wall Part 2 Flashcards
Rectus sheath is formed by:
Aponeurosis of 3 lateral abdominal muscles
Rectus sheath completely (anterior and posterior) encloses the:
Upper 3 quarters of the rectus abdominis muscles
Rectus sheath covers the anterior surface ONLY of the:
Lower one-quarter of the muscle
Anterior wall of the upper 3/4 of the rectus sheath
Aponeurosis of
External oblique
And internal oblique (1/2)
Posterior wall of upper 3/4 of the rectus sheath
Aponeurosis of Internal oblique (1/2) And transverse abdominis
The internal oblique splits to enclose ________ _____.
Rectus abdominis
Anterior wall for lower 1/4 of the rectus sheath
Aponeurosis of
External oblique
Internal oblique
Transverse abdominis
Posterior wall of the lower 1/4 of the rectus sheath
Posterior boundary (transversalis fascia and parietal perioneum) Transversalis fascia Arcuate line (at the 3/4 mark)
All 3 muscles pass _________ (IN FRONT OF/BEHIND) the rectus abdominis
In front of
Posterior wall is formed by:
Transversalis fascia
Posterior later of the rectus sheath ends:
Inferiorly at the arcuate line
Contents of rectus sheath (7)
Rectus abdominis Pyriamidalis Lower 6 thoracic nerves (T7-T12) Superior epigastric vessels Inferior epigastric vessels Posterior intercostal vessels Lymphatics
Oblique passage through the lower part of the anterior abdominal wall
Inguinal canal
Inguinal canal extends from_______ to _______:
The Deep to superficial inguinal ring
Where is the inguinal canal found?
Above medial 1/2 of inguinal ligament
The inguinal begins:
It ends:
Begins in the deep inguinal ring
Ends in the superficial inguinal ring
Boundaries of the inguinal canal (4)
Floor
Anterior wall
Roof
Posterior wall
Floor of the inguinal canal:
Rolled edge of inguinal ligament supported by lacunae ligament
Ligament that anchors the inguinal floor in place
Lacunar ligament
Anterior wall of the inguinal canal
Aponeurosis of external and internal obliques
Roof of inguinal canal
Lower edges of internal oblique and transversus (conjoint tendon medially)
Posterior wall of the inguinal canal
Transversalis fascia laterally and conjoint tendon medially
Male contents of the inguinal canal
Spermatic cord
Ilioinguinal nerve
Female contents of the inguinal canal
Round ligament
Ilioinguinal nerve
The round ligament comes from the
Uterus
Dense band of inferiormmost part of external abdominal oblique
Ingiunal ligament
Inguinal ligament acts as:
Along with:
Flexor retinaculum of hip joint along with iliopubic tract
Inguinal ligament forms the roof of:
Subinguinal space
Transversalis fascia thickens posteriorly and becomes the:
Iliopubic tract
External iliac artery becomes the:
Inferior epigastric
Weakened area in the abdominal wall
Inguinal triangle
The inguinal triangle is the locations for which hernias?
Direct
Location for indirect hernias
Deep inguinal ring
Are Hernias that are 5x more likely to occur indirectly or directly?
Indirect
Indirect hernias are _____ to the inferior epigastric vessel
Lateral
Direct hernias are _____ to the inferior epigastric vessels
Medial
Are Congenital hernias direct or indirect?
Indirect
Are Acquired hernias direct or indirect?
Direct
Congenital hernias are ______ times more likely in males
20
______% of all inguinal hernias occur in males
86
Spermatic fascia contents:
Internal spermatic fascia
Cremasteric fascia
External spermatic fascia
What becomes the tunica vaginalis
Peritoneum
What becomes the internal spermatic fascia
Transversalis fascia
What became the cremasteric fascia?
Internal abdominal oblique muscle
What becomes the external spermatic fascia?
External abdominal oblique
Contents of the spermatic cord (10)
Vas deferens Testicular artery Cremasteric artery Artery to vas deferens Pampiniform plexus Testicular vein Genital branch of genitofemoral nerve Autonomic nerves (pain) Lymphatics Process vaginalis
Purpose of the pampiniform plexus
To draw heat away from the testicles faster
Vas deferens comes off the tail of
Epididymis
