Trans - Anterior Abdominal Wall Flashcards
anterior abdominal wall: superior border
costal margins (ribs 6 to 12), xiphoid process
anterior abdominal wall: inferior border
ASIS, inguinal ligament, pubic crest, pubic symphysis
at what level is the umbilicus found
between L3 and L4
the inguinal ligament marks what dermatome
T10
union of the aponeuroses of the flat muscles of the left and the right side
linea alba
lateral margin of the rectus abdominis
linea semilunaris
transverse attachments between the anterior rectus sheath and the rectus abdominis muscle
tendinous intersections
structure that indicates the site of the inguinal ligament
inguinal groove
the abdomen is divided into 4 quadrants by what planes
- median plane
2. transumbilical plane
the abdomen is divided into 9 regions by what planes
- transpyloric plane
- transtubercular / intertubercular plane
- left midclavicular plane
- right midclavicular plane
the transpyloric plane is at the level of:
L1-L2
the transtubercular plane is at the level of:
L5
the subcostal plane is at the level of:
L3
visceral pain often is referred to what region
umbilical
superficial fatty layer of superficial fascia
Camper’s fascia
deep membranous layer of superficial fascia
Scarpa’s fascia
thin membranous sheath lying beneath the three muscles and the linea alba
transversalis fascia
external oblique: direction of fibers
inferomedially
internal oblique: direction of fibers
mainly superomedial, becomes inferomedial as it nears the inguinal ligament
conjoint tendon is formed by
internal oblique and transversus abdominis aponeuroses
fascia opposing the erector spinae muscles
thoracolumbar fascia
innermost of the flat abdominal muscles
transversus abdominis
external oblique: innervation
T6-T12
rectus abdominis: action
flexor of trunk
prevents hyperextension
small triangular muscle in anterior abdominal wall
pyramidalis
T/F: the epigastric vessels are found within the rectus sheath
T
anterior rectus sheath is formed by
- aponeurosis of external oblique
2. anterior lamina of superior 2/3 of internal oblique
posterior rectus sheath is formed by:
- aponeurosis of transversus abdominis
2. posterior lamina of superior 2/3 of internal oblique
linea semicircularis: define
line demarcating the termination of the posterior rectus sheath
branches of L1 ventral rami
- iliohypogastric nerve
2. ilioinguinal nerve
nerve supply of AAW superior to umbilicus
T7-T9
nerve supply of AAW at umbilicus
T10
nerve supply of AAW inferior to umbilicus
T11, subcostal, iliohypogastric, ilioinguinal nerves