Subcostal nerveIliohypogastric nerveIlio-inguinal nerveLateral cutaneous nerve of thighFemoral nerveGenitofemoral nerveObturator nerveSubcostal nerve (T12)Iliohypogastric nerve (L1)Psoas major muscleIlio-inguinal nerve (L1)Lateral cutaneous nerve of thigh (L2,L3)Femoral nerve (L2 to L4)Genitofemoral nerve (L1,L2)Iliacus muscleObturator nerve (L2 to L4)Lumbosacral trunks(L4,L5)
Fig. 4.175 Cutaneous distribution of the nerves from the lumbar plexus.
L1T12T12T12T11T11T10T10Ilio-inguinal nerve (L1)Ilio-inguinal nerve (L1)Genitofemoral nerve (L1,L2)Lateral cutaneous nerve of thigh (L2,L3)Obturator nerve (L2 to L4)Cutaneous branch of obturator nerve (L2 to L4)Femoral nerve (L2 to L4)Lateral cutaneous branchof iliohypogastric nerve (L1)Anterior cutaneous branchof iliohypogastric nerve (L1)Femoral branch of genitofemoral nerve (L1,L2)Lateral cutaneous nerve of thigh (L2,L3)Intermediate cutaneous from femoral nerveMedial cutaneous fromfemoral nerveSaphenous nerve from femoral nerve
Fig. 4.176 Interior view of the abdominal region of a man. Palpable bony landmarks, the inguinal ligament, and the position of the diaphragm are indicated.
Fig. 4.177 Groin. A. In a man. B. In a woman. C. Examination of the superficial inguinal ring and related regions of the inguinal canal in a man.
Deep inguinal ringAponeurosis of external obliqueAponeurosis of external obliqueSuperficial inguinal ringPosition of pubic symphysisABCAnterior superior iliac spineSpermatic cordInguinal ligamentFemoral arteryDeep inguinal ringSuperficial inguinal ringPosition of pubic symphysisAnterior superior iliac spineRound ligament of uterusInguinal ligamentFemoral artery
Fig. 4.178 Landmarks used for establishing the positions of lumbar vertebrae are indicated. Anterior view of the abdominal region of a man.
End of ninth costal cartilageLower edge of tenthcostal cartilageHighest point on iliac crestLILIILIIILIVLVPubic symphysisTubercle of crest of iliumJugular notchTranspyloric planeSubcostal planeSupracristal planeIntertubercular planeUmbilicus910
Fig. 4.179 LI vertebral level and the important viscera associated with this level. Anterior view of the abdominal region of a man.
KidneyEnd of ninth costal cartilageLI9Pubic symphysisJugular notchDuodenumTranspyloric planeNeck of pancreasSuperior mesenteric artery
Fig. 4.180 Major vessels projected onto the body’s surface. Anterior view of the abdominal region of a man.
Upper border of LICeliac trunkAortaLower border of LISuperior mesenteric arteryLIII Inferior mesenteric arteryLIV Bifurcation of aortaLV Joining of common iliacveins to form the inferiorvena cavaLII Approximate originof renal arteryLITXIILIILIIILIVLVPubic symphysisJugular notchTranspyloric planeSubcostal planeSupracristal planeIntertubercular planeUmbilicusInferior vena cava910