Abd Flashcards
What layer lines the body wall of a serous cavity?
Parietal Layer
What layer covers the surface of the organs?
Visceral layer
What innervates parietal layers?
Somatically innervated by spinal nerves
Innervates visceral layers
Autonomic nerves
How are the 4 quadrants of the abdomen divided?
Veritical line thru the midline, and horizontal line thru the umbilicus
How are the 9 regions of the abdomen divided?
Left/Right midclavicular, subcostal of 10th ribs/Transtubercular at the iliac tubercles
Fatty superficial layer of the Abd that is cont w/ similar fascia of the thorax/thigh
Camper’s fascia
Membranous deep layer of fascia found inferior to the level of the umbilicus
Scarpa’s fascia
Fascia deep to the scrotal skin
Dartos fascia, continuous with scarpa’s fascia
Female equivalent to dartos fascia
Fascia of the labia majora
Fascia around the shaft of the penis
Superficial penile fascia
Fascia of the perineum
Colles’ fascia
Fascia of the thigh
fascia lata
Membranous layer just deep to the muscles/aponeurosis that becomes denser in the lower abdominal layers
Transversalis Fascia
Layer between the transversalis fascia and peritoneum
Extraperitoneal fascia
Serous membrane whose parietal layer is the most internal linig of the abdominal cavity wall
Peritoneum
External to internal layers of the abdominal muscles
External oblique, internal oblique, transverse abdominis (rectus passes superficial to this for the superior portion of the abdomin)
Aponeuroses formed by the 3 lateral abdominal muscles
Rectus sheath
Inferior edge of the posterior aspect of the rectus sheath that denotes the transtion of the aponeurotic layers (b/t umbilicus and pubis)
Arcuate line
Epigastric vessel location above the arcuate line
Within the sheath on the posterior surface of the rectus abd
Epigastric vessel location below the arcuate line
Between the transversalis facia and rectus abd
Rectus abdominis movements
Flexes spine, posterior tilt of pelvis (pubis pulled superior), lumbo-pelvic stabilization
Internal and External Abd Oblique movements
Flexion of the spin (bilaterally), Lateral flextion of the spine (unilaterally), rotation of spine (contra EO with ipsi IO)
What does the transverse abdominal function as?
Protection via layers, rigidity during contraction, creates an increase in intraabdominal pressure
Arteries between the TA and the IO in the anterolateral abdonimal wall
Posterior intercostal arteries and subcostal arteries
On posterior surface of RA wthin the rectus sheath, also supplies the RA
Superior epigastric artery
Posterior surface of the RA and anastamoses with superior epigasteric A.
Inferior epigastric artery
Forms a communication b/t the axillary and femoral veins
Thoracoepigastric vein