Abdominal Wall anatomy

Which anatomical lines divide the abdomen into four quadrants?

• Subcostal plane and transtubercular plane

• Median plane and transtubercular plane

• Transumbilical plane and subcostal plane

• Median plane and transumbilical plane

What does the right upper quadrant (RUQ) contain?

• The gallbladder

• The spleen

• The stomach

• The body of the pancreas

Which region of the abdomen contains the stomach, liver, and spleen?

• Umbilical region

• Left lumbar region

• Right hypochondriac region

• Epigastric region

What is the function of the external oblique muscle?

• Contralateral rotation of the torso

• Hip flexion

• Hip extension

• Trunk extension

What is the function of the iliacus muscle?

• Hip extension

• Hip flexion

• Trunk lateral flexion

• Trunk rotation

Which muscle forms part of the floor of the paravertebral gutter?

• Psoas minor

• Iliacus

• Quadratus lumborum

• Psoas major

What is the function of the quadratus lumborum muscle?

• Elevates thoracic ribcage on inspiration

• Hip flexion

• Hip extension

• Trunk lateral flexion

Which vein drains the posterior abdominal wall mainly into the inferior vena cava?

• Inferior epigastric vein

• Lumbar veins

• Subcostal vein

• Superior epigastric vein

In the posterior abdominal wall, which muscle is located between the anterior and middle layers of the thoracolumbar fascia?

• Psoas major

• Latissimus dorsi

• Iliacus

• Quadratus lumborum

Which structure forms the most internal layer of the anterolateral abdominal wall?

• Posterior rectus sheath

• Parietal peritoneum

• Internal oblique

• Transversalis fascia