Anatomy Interior Abdominal Wall - Lecture 3 Flashcards
What are the three anterolateral abdominal muscles from superficial to deep?
External oblique
Internal oblique
Transversus abdominis
Which type of inguinal hernia is congenital?
Indirect
What is the name of the thickened bit of aponeuorosis in the midline
Linea alba
Between which two parts is the ingiunal ligament between?
ASIS and pubic tubercle
Below the umbilicus:
What is anterior to the rectus abdominis
Skin Fat External oblique aponeurosis Internal oblique aponeurosis Transversus abdominis aponeurosis
At which intercostal space does the internal thoracic artery bifurcate into a musculophrenic artery and superior epigastric artery?
6th/ 7th intercostal space
What does the internal thoracic artery split into?
Superior epigastric artery Musculophrenic artery (laterally, gives rise to some intercostal arteries)
Which artery does the internal thoracic artery originate from?
Subclavian artery
Where does the inferior epigastric artery originate from?
The external iliac
What does the common iliac split into
An external iliac and internal iliac
What is a direct hernia
Bowel enters the canal through through a weakness in the posterior wall of the canal.
Acquired
What does the arcuate line signify
The change in formation of the rectus sheath (difference between above and below the umbilicus).
Above the umbilicus:
What is posterior to the rectus abdominis
Half of external oblique aponeurosis
Transversus abdominis aponeurosis
Transversalis fascia
Parietal peritoneum
Which three arteries are found in the spermatic cord
Testicular artery
Cremasteric artery
Artery of ductus deferens
What is the rectus sheath formed by?
The aponeurosis of all three muscles: external oblique, internal oblique, transversus abdominis
Where does the femoral artery originate from?
The external iliac (becomes the femoral artery after the ingiunal ligament)
Above the umbilicus:
What is anterior to the rectus abdominis
Skin
Fat
External oblique aponeurosis
Half of internal oblique aponeurosis
Which two arteries does the external iliac give rise to?
Inferior epigastric
Femoral artery
Between which vertebrate are all the thoracoabdominal nerves found?
T7 to T12
A split in the aponeurosis of which muscle forms the superficial inguinal ring?
External oblique
What is found in the inguinal canal in males
Spermatic cord
What is found in the inguinal canal in females
Round ligament of the uterus
What the two types of ingiunal hernias?
Direct and indirect
In which type of hernia does it leave the abdomen medial to the inferior epigastric vessels
Direct
