ABDOMINAL WALL
- Abdominal wall
- Anterior Abdominal wall
- Skin
- linea albicans
- umbilicus
- watershed
- lymphatic and venous drainage
- portocaval anastomosis
- caput medusa
- Superficial Fascia
- below umbilicus
- superficial fatty layer ( fascia of camper )
- in penis it is devoid of fat
- in scrotum replaced by dartos muscle
- deep membranous layer ( fascia of scarpa )
- continuous with superficial fascia of perineum
- colle's fascia
- prevents urine from ruptured urethra
- attached to
- holdens line
- pubic tubercle
- body of pubis
- median plane it is thickened to
- suspensory and fundiform ligament of penis and clitoris
- contains
- cutaneous nerve
- lower 5 intercostal nerves
- lower six thoracic nerves
- first lumbar nerve
- anterior cutaneous nerves
- subcostal nerve
- iliohypogastric nerve
- t7-t12
- cutaneous vessels
- anterior cutaneous artery
- superficial inguinal vein drains in to
- great saphenous vein
- deep vessels
- superior epigastric and musculophrenic
- inferior epigastric
- cremasteric branch to spermatic cord
- pubic branch
- deep circumflex iliac
- fascia transversalis
- anteriorly -
- posteriorly -
- superiorly
- inferiorly
- muscles
- external oblique
- internal oblique
- transversus abdominis
- rectus abdominis
- Actions
- support for abdominal viscera
- against gravity
- expulsive acts
- micturition , defecation , parturition , vomiting
- forceful expiratory acts
- coughing , sneezing , blowing , shouting
- movements of trunk
- flexion
- lateral flexion
- rotation
- ligaments
- inguinal ligament or poupart's ligament
- cremaster muscle and conjoint tendon
- conjoint tendon or falx inguinalis
- formed by fusion of aponeurotic fibres of
- internal oblique and transversus muscles
- cremaster muscle
- action
- to suspend testis and elevate it
- cremasteric reflex
- reflex contraction upon stroking
- supplied by genital branch of genitofemoral nerve
- pyramidalis muscle
- RECTUS SHEATH
- anterior wall
- complete
- posterior wall
- incomplete
- laterally anterior and posterior wall extend
- linea semilunaris
- fusion in midline
- linea alba
- THREE DIFFERENCES
- above costal margin
- anterior wall - external oblique aponeurosis
- posterior wall -
- deficient - directly on 5th , 6th and 7th costal cartilage
- between costal margin and arcuate line
- anterior wall
- posterior wall
- below arcuate line
- anterior wall
- aponeurosis of all 3 muscles
- posterior wall - on fascia transversalis
- CONTENT
- rectus abdominis muscle
- pyramidalis
- vessels
- superior and inferior epigastric artery and vein
- Posterior Abdominal wall
ANTERIOR ABDOMINAL WALL
DISSECTION TUTORIALS
POSTERIOR ABDOMINAL WALL
ANTERIOR ABDOMINAL WALL
