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The cat's muscle fibers run perpendicular to its internal oblique muscles. The fibers of the external oblique muscles run opposite of the muscles.
Oblique fibers
oblique
run at an oblique angle to vertical direction of the spine.
The heart is located in the mediastinum, in the center of the chest. It contains cardiac muscle fibers.
presence of rugae presence of an oblique muscle layer
The inner oblique layer of the muscularis mucosae.
sarcolemma
sarcolemma
muscle fibers
internal oblique opposes the external oblique
myofobril