Structural Evidence for Insertion of Collagen Fibers to Smooth Muscle Cells in the Carotid Arterial System of the Giraffe (Giraffa camelopardalis)

Author(s)James Kirumbi Kimani
Year Published1981
JournalCell and Tissue Research
Page Numbers219-224
Size1.54 MB

Previous anatomical studies have failed to resolve the question relating to whether or not collagen fibers, like elastic fibers, are attached to smooth muscle cells in the arterial wall. The current ultrastructural study demonstrates the insertion of collagen fibers to the sacrolemmal dark areas in the smooth muscle cells of the carotid arterial system of the giraffe. It is concluded, therefore, that this morphological linage between collagen and smooth muscle cells may facilitate transmission of the force of contraction between the cells and to the surrounding connective tissue framework since the myofilaments appear to be spatially placed in series with the extracellular collagen fibers at the sarcolemmal dark areas.

Key Words: Smooth muscle, collagen, carotid arteries, giraffe, cell cohesion, nexus

Author: James Kirumbi Kimani

Journal: Cell and Tissue Research 

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