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Abdominal wall & Inguinal region (Abdominal regions (Epigastric…
Abdominal wall & Inguinal region
Boundaries
Anterior & Lateral
Abdominal muscles
Posterior
L/S vertebrae & Quadratus
Superior
Diaphragm
Inferior
iliac crests, Superior iliac spine, inguinal ligament, pubic tubercle, pubic crest, pubic symphysis
Abdominal planes
Supracrestal plane
Through body of L4
Highest border of ilac crest
Transtubercular plane
Through body of L5
Through iliac tubercles
Subcostal plane
L2 & L2 IVD
Lower level of costal cartilage
Interspinous plane
Through promentory of sacrum
Through ASIS
Transplyoric Plane
L1 & L2 IVD
Through pylorous of stomach
Abdominal regions
Umbilical
Left Lumbar
Right Lumbar
Right iliac
Left Hypochondriac
Spleen
Pancreas
Stomach
Splenic Flexure of Lg. Intestine
Hypogastric
Epigastric
Gallbladder
Transverse colon
Stomach
Pancreas
Liver
Left iliac
Right Hypocondriac
Anterior Abdominal Wall
Linea Alba
Interwinding of L/R Rectus sheath in midline
Xiphoid Process to Pubic Symphysis
Rectus Sheath
Umbilical region
Anterior
Aponeurosis of ext/int. obliques
Posterior
Aponeurosis of int. oblique & transverse abdominis
Hypogastric region
Meet ventrally, from sleeve around recuts muscle
Posterior
Fascia Transversalisis; thin layer of CT
Anterior
Aponeuroses from ext./int. oblique and transverse abdominis
Epigastric region
External abdominal obliques split and forms anterior and posterior sheath.
Boundaries
Anterior
Rectus Abdominis
Lateral
Internal Abdominal Oblique
Transverse Abdominal
External Abdominal Oblique
Blood Vessels
Inferior Epigastric & Deep Circumflex iliac Artery (From External iliac artery)
To region BELOW umbilicus
Posterior Intercostal Artery from T10, T11, Subcostal artery & Lumbar artery.
Travel central and anastomose with superior and inferior epigastric
Superior Epigastric A. (from internal thoracic artery)
To region ABOVE umbilicus
Posterior Abdominal Wall
Boundaries
L/S Vertebra
Psoas Major
Quadratus Lumborum
Lumbar Plexus
Ventral Rami of L1-L5 SN
L2-L4 divides as it passes through Psoas
Anterior
Part of Genitofemoral
Part of Lumbosacral
Obturator N.
Posterior
Lateral Femoral Cutaneous
Femoral N.
Accessory Obturator N.
Inguinal Region
Male
ilioinguinal N.
Spermatic Cord
Testicular A.
Pampinform Venous Plexus of Testicular Vein
Vas Deferns
Genital Branch of Genitofemoral N.
Female
Round Ligament of Uterus
Gential Branch of Genitofemoral N.
ilioinguinal N.
Hernias
Indirect Inguinal Hernia (Most Common)
Herniation of Small Intestine into DEEP inguinal ring through inguinal canal and out of SUPERFICIAL inguinal ring.
Direct Inguinal Hernia
Herniation of small intestine through CONJOINT TENDON and directly out SUPERFICIAL inguinal ring.
Testis & Epididymi
s
Develop in abdomen, descend into scrotum
Cremaster
Elevates testis toward pelvis to maintain testicular temp.
Epididymis
Outer surface of testis
Head, body, tail region becomes VAS DEFERENS
Scrotum
Outer skin, inner fascia and DARTOS (Smooth mm) contracts skin
Seminiferous Tubules
Sperm Development
Continuation of Abdominal Layers to Scrotum
Internal Oblique Aponeurosis
Cremaster mm
Transversus Abdominis Aponeurosis
NOTHING
External Oblique Aponeurosis
External Spermatic Fascia
Transversalis Fascia
Internal Spermatic Fascia