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The anterior muscles of the trunk.

Trunk Muscles

The anterior muscles of the trunk.

Front view of the body, showing deep muscles.

Deep Muscles of the Trunk of the Body

Front view of the body, showing deep muscles.

Back view of the trunk of body, showing spinal deep muscles.

Deep Muscles of the Trunk of the Body

Back view of the trunk of body, showing spinal deep muscles.

Superior muscles of the upper front of the trunk. Labels: 1, sterno-hyoid; 2, sterno-cleido-mastoid; 3, sterno-thyroid; 4, sterno-cleido-mastoid; 5, edge of the trapezius; 6, clavicle; 7, clavicular origin of the pectoralis major; 8, deltoid; 9, fold of the pectoralis major of the anterior edge of the axilla; 10, middle of the pectoralis major; 11, crossing and interlocking of the fibers of the external oblique of one side with those of the other; 12, biceps flexor cubiti; 13, teres major; 14, serratus major anticus; 15, superior heads of external oblique interlocking with serratus major.

Muscles of the Upper Trunk

Superior muscles of the upper front of the trunk. Labels: 1, sterno-hyoid; 2, sterno-cleido-mastoid;…