liver, pancreas and abdominal wall prac Flashcards
what structures lie within the liver shadow (US)
- hepatic parenchyma (liver tissue should be homogenous)
- hepatic vessels
- caudal vena cava
- gallbladder (anechoic)
- bilary tree
- diaphragm
- stomach
- duodenum
what goes through the inguinal canal
- spermatic cord
- external pudendal artery and vein
- genitofemoral nerve
- lymphatics
- testicles
- round ligament of uterus
where will you find the inguinal canal
- bilateral
- deep ring = opening in transversalis cranial and medial to iliopubic eminence
- superficial ring = external oblique muscle just above inguinal ligament
in which direction do the internal oblique muscle fibres run
ventrocranially
in which direction do the external oblique muscle fibres run
caudoventrally
what structures will you find on the diaphragmatic surface of the diaphragm
- right triangular ligament
- coronary ligament
- left triangular ligament
- single caudal vena cava and multiple hepatic veins
- falciform ligament
what structures will you find on the visceral surface of the liver
- origin of the lesser omentum
- papillary process
- renal fossa for right kidney
- hepatic artery
- hepatic portal vein
label
what is the function of the external abdominal oblique muscle
- compression of abdomin
- flexion
- rotation
- stabilization
what is the linea alba
- fibrous tissue
- aponeruotic joining of left nd right abdominal oblique and transversus muscles
- extends xiphoid to pubis
- includes umbilicus
- no vasculature or nerves = good spot to make incision
what is aponeurosis
broad, flat sheet of dense fibrous connective tissue that functions similarly to a tendon. It serves as an attachment point for muscles, allowing them to connect to each other or to bones
examples:
- linea alba
what is the inguinal ring for
passage of structures between the abdominal cavity and the external genitalia or mammary regions.