Anterior Abdominal Wall and Inguinal Canal

what is the abdomen a component of?

the trunk

between what two cavities is the abdomen located in?

the thoracic and pelvic cavities

what is the 1) superior 2) inferior 3) anterolateral and 4) posterior boundaries of the abdomen

1) superior: diaphragm

2) inferior: continuous with pelvic cavity

3) anterolateral: anterior abdominal wall

4) posterior: lumbar vertebra and posterior abdominal wall

What is 1?

the tendinous intersections, which is the rectus sheath attached to rectus abdominis

What is 2? In between what two structures does it run?

Linea alba - runs in the median furrow from the xiphoid process to the pubic symphysis

what is 3 and what vertebral level is it at

umbilicus, l3/l4 level

what is 4? between what structures does it span? what is the lateral margin?

linea semilunaris

curved groove → tip of 9th costal cartilage to pubic tubercle

lateral margin of rectus abdominis

what is 1?

superior pubic ramus

what is 2?

obturator foramen

what is 3?

inferior pubic ramus

what is 4?

iliac fossa

what is 5?

anterior superior iliac spine

what is 6?

anterior inferior iliac spine

what is 7?

sacrum

what is 8?

coccyx

what is 9?

pubic crest

what is 10?

pubic symphisis

what is 11?

iliac crest

what is 12?

iliac tubercle

what is 13?

pubic tubercle

what is 1?

inguinal ligament

what is 2?

pectineal ligament

what is 3?

lacunar ligament

what are the three ligaments of the bony pelvis?

1) inguinal ligament

2) lacunar ligament

3) pectineal ligament

describe what makes up the inguinal ligament and what it is attached to (laterally and medially)

• free folded margin of external oblique aponeurosis

• attached laterally to anterior superior iliac spine (ASIS)

• attached medially to pubic tubercle