Muscles and Aponeurosis of abdominal region Flashcards Preview

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Flashcards in Muscles and Aponeurosis of abdominal region Deck (10):
1

Anterior group of abdominal muscles

rectus abdominis and sometimes pyramidalis

2

Anterolateral muscle groups

external abdominal oblique
internal abdominal oblique
transversus abdominis

3

Posterior muscle groups

iliacus
posoas major and minor
quadratus lumborum

4

Flexion of abdominal region

EO, IO, RA

5

ABduction of trunk

lateral flexion of trunk

contraction of EO and IO together on one side

6

Rotation of trunk

EO on one side and IO on the other: fibers of opposite sides from the two layers run in the same direction

R EO is parallel with L IO

7

In what region do fibers of the EO and IO run parallel?

inguinal and hypogastric region the run parallel to EO aponeurosis

8

abdominal wall muscles assist in

respiration: forced expiration by compressing abdominal content, forcing viscera against diaphragm

VALSALVA maneuver, fixation of abdominal wall by rasing thoracoabdominal pressure (Valsalva maneuver)


coughing, sneezing, urination, defection, emesis, parturition


9

Above the arcuate line: layers

skin
Fatty and membranous superficial layes
Aponeurosis of EO (2 layers)
Aponeurosis of IO (1 layer)
rectus abdominis muscle
Apo of IO (1 layer)
Apo of TA (2 layers)
transversalis fascia
Extraperitoenal tissue
Parietal peritoneum

10

Below the arcuate line: layers

Skin
fatty layer of superficial fascia
membraneous layer of superficial fascia
Apo of EO (2 lay)
Apo of IO (2 lay)
Apo of TA (2 lay)
transervsalis fascia
extraperitoneal fascia
parietal fascia