Flashcards in Anterior Abdominal Wall Deck (42)
most superficial layer of anterior abdominal wall
Layer of anterior abdominal wall Just deep to the skin composed of subcutaneous fat layer (variable) and loose CT
thin Layer of membrane located just deep to fatty layer of fascia just below skin
Collectively the scarpa's and camper's fascia layer compose the _______ fascia
The 3 layers of muscle lie between __________ and _________
Scarpa's fascia; transversalis fascia
Layer of fascia deep to the 3 muscles and superficial to the extraperitoneal fat layer
Fat layer deep to the transversalis fascia and superficial to the parietal peritoneum; not as variable
Layer of anterior abdominal wall deep to extraperitoneal fat and superficial to the abdominal organs
Layers of abdominal wall from superficial to deep
Skin->Camper's fascia-> Scarpa's fascia-> 3 muscles-> transversalis fascia-> Extraperitoneal fat -> Parietal peritoneum
Outermost muscle layer of anterior abdominal wall; run down and in; inserts on iliac spine and aponeurosis
external oblique muscle
Middle muscle layer of anterior abdominal wall; origin on iliac spine and inguinal ligament; fan shaped; upper fibers run upward, middle run horizontally, lower run down and medially
Internal oblique muscle
Innermost muscle layer of anterior abdominal wall; run horizontal
Transversus abdominus muscle
Inserts on costal cartilages and xiphoid processes and originates on pubis; fibers run vertically; 3 times wider superiorly than inferiorly; runs in front of abdominal wall
How many tendinous insertions into the superficial division of the rectus sheath are there on the rectus abdominis muscle?
connective tissue that runs down midline of abdomen from pubis to xiphoid process; separates right and left abdominal muscles
broad and flat tendon connecting abdominal muscles to the linea alba
Superficial inguinal ring is found in what layer?
External oblique muscle
Middle inguinal ring is found in what layer?
Internal oblique muscle
Deep inguinal ring is found in what layer?
line trilayer abdominal wall muscles; comes down as far as inguinal ligament
Upper 3/4 of abdomen is supported by the aponeuroses of which muscles?
External oblique, internal oblique, and Transverse abdominis
Upper 3/4 of abdomen is supported superficially, deep, or both by aponeuroses of abdominal wall muscles?
Lower 1/4 of abdomen is supported superficially, deep, or both by aponeuroses of abdominal wall muscles?
Point where the rectus abdominis is not supported on the deep side; only superficially
Sensory innervation of skin over the anterior abdominal wall is provided by ________
Sensory innervation of skin over the anterior abdominal wall is provided by ventral rami
Lower 5 intercostal nerves (T7-T11), subcostal nerve (T12), and iliohypogastric/Inguinal nerves (L1)
T/F: The same nerves that supply the skin of anterior abdominal wall supply the anterior abdominal wall muscles
Inferior and superior epigastric Arteries and veins run between what 2 layers of anterior abdominal wall layers?
Transverse abdominis and internal oblique
Arteries supply the rectus abdominis of anterior abdominal wall include
Superior and Inferior epigastric arteries