Abdomen Flashcards
Origin and termination of abdominal aorta?
T12-L4
Posterior relations of abdominal aorta?
L1-L4 Vertebral bodies
Anterior relations of abdominal aorta?
Lesser omentum
Liver
Left renal vein
Inferior mesenteric vein
Third part of duodenum
Pancreas
Parietal peritoneum
Peritoneal cavity
which structures accompany the aorta as it traverses aortic hiatus?
thoracic duct
azygous vein
Posterior relations of caecum?
Psoas
Iliacus
Femoral nerve
Genitofemoral nerve
Gonadal vessels
Anterior relations of the caecum?
greater omentum
Arterial supply of the caecum?
ileocolic artery
Which are the main structures at risk in a right hemicolectomy?
gonadal vessels and ureter are important posterior relations that are at risk during a right hemicolectomy.
Floor of the inguinal canal?
External oblique aponeurosis
Inguinal ligament
Lacunar ligament
Roof of the inguinal canal?
Internal oblique
Transversus abdominis
Anterior wall of the inguinal canal?
External oblique aponeurosis
Posterior wall of the inguinal canal?
Transversalis fascia
Conjoint tendon
Lateral to the inguinal canal?
Internal ring
Transversalis fascia
Fibres of internal oblique
Medial to the inguinal canal?
External ring
Conjoint tendon
Contents of the inguinal canal in males?
Spermatic cord and ilioinguinal nerve
genital branch of genitofemoral nerve
Contents of the inguinal canal in females?
Round ligament of uterus and ilioinguinal nerve
genital branch of genitofemoral nerve
Coverings of the spermatic cord?
As it passes through the canal the spermatic cord has 3 coverings:
External spermatic fascia from external oblique aponeurosis
Cremasteric fascia
Internal spermatic fascia
Where is the superficial ring located?
anterior to the pubic tubercle
Where is the deep ring located?
approximately 1.5-2cm above the half way point between the anterior superior iliac spine and the pubic tubercle
Borders of hesselbachs triangle?
medial boundary: rectus abdominis muscle;
lateral boundary: inferior epigastric vessels
inferior: inguinal ligament
Abdominal aortic branches?
Phrenic [inferior]
Celiac
Superior mesenteric
Suprarenal [middle]
Renal
Testicular
Lumbars
Inferior mesenteric
Sacral
What is the midgut?
Second part of duodenum to 2/3 transverse colon
What is the hindgut?
Distal 1/3 transverse colon to anus
Relations of the left kidney?
Anterior- left renal vein, the tail of the pancreas