Ant abdominal wall-1
-
Upload
drpratik-mistry -
Category
Health & Medicine
-
view
199 -
download
0
Transcript of Ant abdominal wall-1
Introduction of abdomenAnterior Abdominal wall
UmbilicusDr. Pratik Mistry
Introduction
Two hollow tubular system
Gastro Intestinal System
Genito urinary system
• Extensive serous membrane
Peritoneum
Boundaries of abdomen
Roof
Floor
• Pelvic diaphragm• Urogenital diaphragm
Anterior wall
• Skin• Superficial fascia• External oblique• Internal oblique• Transverse abdominis• Fascia transversalis• Extra-peritoneal tissue• Parietal paritonium
Posterior wall
Retroperitoneal organPrincipal vessels and
nerves
Regions of abdomen
Anterior abdominal wall• Extension
Firm but elastic
• Layers– Skin– Superficial Fascia– External oblique muscle and its aponeurosis– Internal oblique muscle and its aponeurosis– Transverse abdominis muscle and its aponeurosis– Fascia transversalis– Extra peritoneal tissue– Parietal peritoneum
1.Skin
Median Longitudinal groove
Cutaneous nerves
• Anterior cutaneous nerveAnterior
cutaneous nerve(7 in nos)
Lower five intercostal nerve
T7-T11
Subcostal nT12
Iliohypogastric nL1
Lateral cutaneous nerve
• Two in nos.– Lower two intercostal nerves (T10, T11)
Umbilicus
• Introduction• Normal scar
– Dense fibrous tissue– Foetal end of umbilical cord
• Position• Between L3 & L4
Anatomical Importance of umbilicus
• Congenital anomalies• Watershed line• Portocaval anastomosis
Rapsberry tumor
• Watershed line
– Umbilicus
Axillary lymph node
Superficial inguinal lymph node
• Caput medusae
Embryogical importance
2.Superficial Fascia
Structure between two layers
Superficial circumflex iliacSuperficial epigastricSuperficial external pudendal Superficial inguinal LN
3. External oblique muscle and inguinal ligament
• Origin• Insertion• External oblique AponeurosisUpper and lower
attachment of aponeurosis
Inguinal ligament• Thickening of EOA• 12-14 cm in length• Attachment• extension
Extension• Lacunar lig• Reflected part• Pectineal lig of Cooper
Structure attached to the inguinal ligament
• Grooved upper surface– Internal oblique– Transversus
abdominis
• Lower surface– Fascia lata
Posterior margin• Fascia transversalis• Fascia iliaca
Relation of inguinal ligament