Abdomenal planes

Abdomenal planes

1. Transpyloric

   • vertebral level: Intervertebral disc between L1 and L2
   • IV disc L1 and L2. Through pylorus of the stomach

2. Subcostal plane

   • IV disc L2 and L2. Lowest level of costal cartilage.

3. Transumbilic plan

   • IV disc L3 and L4. At Umbilicus

4. Supracrestal plane

   • Through body of L4. Highest border of iliac crest.

5. Transtubercular plane

   • Through body of L5 and Iliac tubercles.

6. Interspinous plane

   • Plane of the 5th intercostal space
     • IV disc between T10 and T11
   • Through the ASIS/ Promentery of the sacrum

7. Right/Left midclavicular plane

   • Through the middle of the clavicle and the inguinal ligament

8. Abdominal regions of note.

   • Epigastric region
     • Liver, stomach, gallbladder, transverse colon, and pancreas
   • Left hypochondriac region
     • Stomach, spleen, pancreas, splenic flexure of large intestine
   • Inguinal region
     • Inguinal canal. Deep and superficial inguinal rings.

9. Abdominal organs

   • Upper 1/2 abdominal cavity
     • Liver, gallbladder, stomach, spleen, pancreas, kidney
   • Lower 1/2 abdominal cavity
     • Small and large intiestines
   • Blood supply to all these organs from arteries from abdominal aorta.
   • Venous blood from orgas to inferior vena cava
     • Venous hepatic portal system: drains blood from stomach pancreas, spleen, small intestines, large intestines, and dielivers it for processing
       • Liver blood dreains to inferior vena cava
     • Venous systemic system receives its blood from liver, kidneys, suprarenal glands, testes, ovaries, lumbar vertebrae, muscles of abdomen