Muscles of the Trunk PPT

April 25, 2012 | By | Reply More

Muscles of the Trunk PPT

Power point presentation
Untitled 1 Muscles of the Trunk PPT
subject – anatomy
size -
Overview
  • External  intercostal.
  • Internal intercostal.
  • Innermost intercostal
  • diaphragm.
  • Levator costarum.
  • Serratus posterior superior.
  • Serratus posterior inferior.

External  Intercostal Muscles

    Origin:

The inferior  border of the rib above.

    Insertion:

The muscle  fibers are directed downwards, forwards and  medially to be inserted into the superior  border of the rib below.

    Nerve Supply:

Intercostal  nerves.

    Action:

With fixation  of the first rib, they pull the ribs  upwards, so they are muscles of inspiration.

Category: Medical, Powerpoint

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