TRUNK Flashcards
What is the Origin of the erector spinae?
Sacrum, pelvis and vertebrae.
What is the insertion of the erector spinae?
Vertebrae, base of skull and ribs
What is the action of the erector spinae?
Extension of spine and head. Lateral flexión of spine.
What is the origin of the multifidus?
Vertebrae- transverse
What is the insertion of multifidus?
Vertebrae- spinous
What is the action of multifidus?
Extension and rotation of spine.
What is the origin of quadratic lumborum?
Pelvis (iliac crest)
What is the insertion of the quadratic lumborum?
12th Rib, Vertebrae. (Lumbar)
What is the action of the quadratic lumborum?
Lateral flexión.
What is the origin of rhomboids?
Vertebrae (c7 + T1-5)
What is the insertion of the rhomboids?
Scapula (medium border)
What is the action of the rhomboids?
- Stabilised shoulder
retraction of shoulder girdle
Downwards rotation of scapula.
What is the origin of transverse abdominals?
Ribs (lower)
Pelvis (Ilias crest)
Fascia (thoracolumbar)
What is the insertion of transverse abdominals?
Línea alba
Pelvis (pubic bone)
What is the action of transverse abdominals?
Compression of
abdomen.
What are the origins of the internal obliques?
Pelvis and fascia
What is the insertion of the internal obliques?
Ribs
Pelvis
Linea alba
What is the action of the internal obliques?
Compression of abdomen, lateral flexión
Rotation
Flexión of spine
What is the origin of the external obliques?
Ribs (5-12)
What are the insertion of the external obliques?
Pelvis and linea alba
What are the actions of external obliques?
Compression of abdomen
Lateral flexión and rotation
