Anterior Muscles of The Abdomen Flashcards
Name the 4 muscles of the anterior abdomen?
RECTUS ABDOMINIS \+ EXTERNAL OBLIQUE \+ INTERNAL OBLIQUE \+ TRANSVERSE ABDOMINIS
Name the 2 superior attachments of rectus abdominis?
COSTAL CARTILAGES OF RIBS 5 - 7
+
XIPHOID PROCESS
Name the 2 inferior attachments of rectus abdominis?
PUBIC SYMPHESIS
+
PUBIC CREST
What are the 3 actions of rectus abdominis?
FLEXES THE VERTEBRAL COLUMN (TRUNK) \+ STABILIZES PELVIS DURING LEG-LOWERING \+ COMPRESSES VISCERA
Rectus abdominis ______________ the pelvis during leg-lowering.
STABILIZES
Rectus abdominis compresses _____________.
VISCERA
Name the most superficial muscle of the anterior abdomen?
EXTERNAL OBLIQUE
Name the superior/lateral attachment of external oblique?
RIBS 5 - 12
Name the 3 inferior/medial attachments of external oblique?
LINEA ALBA (VIA ABDOMINAL APONEUROSIS) \+ PUBIC TUBERCLE \+ ANTERIOR 1/2 OF ILIAC CREST
What is the fibre direction of external oblique?
ANTERIORLY
and
INFEROMEDIALLY
What are the 2 unilateral contraction actions of external oblique?
ROTATES COLUMN TO CONTRALATERAL SIDE
+
IPSILATERAL LATERAL FLEXION
What are the 3 bilateral contraction actions of external oblique?
TRUNK FLEXION \+ STABILIZES PELVIS DURING LEG-LOWERING \+ COMPRESS and SUPPORT VISCERA
Name the inferior/lateral attachment of internal oblique?
ANTERIOR 1/2 OF ILIAC CREST
Name the 2 superior/medial attachments of internal oblique?
LINEA ALBA (VIA ABDOMINAL APONEUROSIS)
+
RIBS 10 - 12 (INFERIOR BORDERS)
Internal oblique is _________ to external oblique.
DEEP
What is the fibre direction of internal oblique?
ANTERIORLY
and
SUPEROMEDIALLY
What are the 2 unilateral contraction actions of internal oblique?
ROTATES COLUMN TO IPSILATERAL SIDE
+
IPSILATERAL LATERAL FLEXION
What are the 2 bilateral contraction actions of internal oblique?
TRUNK FLEXION
+
COMPRESS and SUPPORT VISCERA
The transversus abdominis is __________ to internal oblique.
DEEP
Name the 3 lateral attachments of transversus abdominis?
INNER ILIAC CREST \+ LOWER 6 COSTAL CARTILAGES \+ THORACOLUMBAR FASCIA
Name the medial attachment of transversus abdominis?
LINEA ALBA (VIA ABDOMINAL APONEUROSIS
What is the fibre direction of transversus abdominis?
MEDIALLY
What is the sole bilateral contraction action of transversus abdominis?
COMPRESS and SUPPORT VISCERA
The external obliques, internal obliques, and transversus abdominis overlap/cross each other in such a way that they do what?
PROTECT and STRENGTHEN ABDOMINAL WALL
The anterior abdominal wall __________ and __________ the abdominal contents.
CONTRACT
and
COMPRESS
