Anterior Abdominal Wall & Inguinal Region Flashcards
upper part of abdomen, formed by ribs 8,9,10 getting togetehr
Subcostal margin
Defect in linea alba; where all layers of the anteriolateral abdominal wall fuse
Umbilicus
running vertically along entire length of abdominal wall; transmits small vessels and nerves to the skin
Linea alba
curved tendon on either side of the rectus abdominis
Linea semilunaris
Where abdominal muscle and sheath fold over
Inguinal fold
Lines of orientation of abdominal wall
Median plane
Transumbilical
Quadrants of ab wall
RUQ - liver and gallbladder
LUQ - stomach and spleen
RLQ - cecum and appendix
LLQ - sigmoid colon
Superficial fascia of abdominal wall
Camper’s fascia
Scarpa’s fascia
Superficial fatty layer of fascia
Camper’s Fascia
Deep membranous layer of fascia that lays over top of ab muscles
Scarpa’s fascia
Four bilaterally paired muscles of abdominal wall
External abdominal oblique
Internal abdominal oblique
Transversus abdominis
Rectus abdominis
Most superficial of abdominal muscles
produces inguinal ligament
External abdominal oblique
Intermediate layer of abdominal muscles
Male-Cremaster muscle
Conjoint tendon with transversus abdominus
Internal abdominal oblique
Conjoint tendon with internal abdominal oblique
deepest layer of abdominal muscles
Transversus abdominis
Long strap-like muscle with tendinous intersections that are attached to and covered by rectus sheath
Rectus abdominis
Fiber orientation of external oblique
V
fiber orientation of internal oblique
A
Two muscles that make the conjoint tendon
internal oblique
transversus abdominus
internal oblique is continuous with _______ _______ in males
Cremaster muscle
conjoint tendon extends to ________ ________
pubic tubercle
All 3 flat muscles end anteriorly with an _________, the midline of which forms the tough ________ ________.
Aponeuroses form ______ ______ which goes from xyphoid process to pubic symphysis
Aponeurosis
Rectus sheath
Linea alba
Demarcates the transition between the posterior rectus sheath covering the superior 3/4 of the rectus abdominis and the transversalis fascia covering the inferior 1/4
Arcuate line
ABOVE arcuate line, tendon of ________ ________ splits to enclose rectus abdominis
internal oblique