GIT anat Flashcards
what is the course of the rectus sheath above the arcuate line?
runs both anterior and posterior to rectus abdominis muscle
what is the course of the rectus sheath below the arcuate line?
runs only anterior to rectus abdominis muscle
where does the superior epigastric artery branch from?
internal thoracic artery
what nerve provides motor innervation to the rectus abdominis muscle?
thoracoabdominal nerve
what nerves contribute to motor innervation of external and internal oblique muscles and transversus abdominis muscle?
lower thoracic n. and lumbar n.
what makes up the anterior border of the inguinal canal?
aponeurosis of external and internal oblique muscles
what makes up the superior border of inguinal canal?
muscle fibres of internal oblique and transversus abdominis
what makes up the inferior border of inguinal canal?
inguinal ligament and lacunar ligament
what makes up the posterior border of inguinal canal?
transversalis fascia and conjoint tendon (internal oblique and transversus abdominis)
what landmark is used to distinguish between direct and indirect inguinal hernias?
hasselbach’s triangle
where does the left testicular vein drain into?
left renal vein
where does the right testicular vein drain into?
directly into IVC
which two ligaments make up the lesser omentum?
hepatogastric and hepatoduodenal ligaments
what makes up the dorsal mesentery?
gastrosplenic ligament, splenorenal ligament and greater omentum
what makes up the ventral mesentery?
falciform ligament and lesser omentum
what is the most dependable part in a supine/erect female?
rectouterine pouch
what is the most dependable part in a supine/erect male?
rectovesical pouch
what is the Morrison’s pouch also known as?
hepatorenal pouch
what is the embryological origin of the ligamentum teres?
umbilical vein
what is the median umbilical ligament derived from?
urachus (connect apex of bladder to umbilicus to drain urine in foetus)
what is the medial umbilical ligament derived from?
umbilical artery
what vertebral level is the transpyloric plane?
L1
which lymph nodes are involved in lymphatic drainage of testes?
para-aortic (lumbar) LNs
which lymph nodes are involved in lymphatic drainage of scrotum?
superficial inguinal LNs
where is testicular pain referred to?
T10 (periumbilical pain)
which nerve roots does the greater splanchnic nerve originate from?
T5-9