ULTRASTRUCTURE OF DYADS IN MUSCLE FIBERS OF ASCARIS LUMBRICOIDES

Ultrastructure of Dyads in Muscle Fibers of Ascaris Lumbricoides

The dyads of Ascaris body muscle cells consist of flattened intracellular cisternae applied to the sarcolemma at the cell surface and along the length of T-tubules. In specimens prepared by conventional methods (glutaraldehyde fixation, osmium tetroxide postfixation, double staining of sections with uranyl acetate and lead hydroxide), both the sarcolemma and the limiting membrane of the cistern...

Ultrastructure of Somatic Muscle Cells in Ascaris Lumbricoides

Somatic muscle cells of Ascaris lumbricoides consist of three differently specialized components referred to as the fiber, which contains the contractile apparatus (described previously), the belly, and the arm. The belly is shown to be a sac of glycogen, which is depleted during starvation of the animal. The arm extends to a nerve cord where it establishes a myoneural junction characterized by...

Ultrastructural Organization of Obliquely Striated Muscle Fibers in Ascaris Lumbricoides

The somatic musculature of the nematode, Ascaris, is currently thought to consist of smooth muscle fibers, which contain intracellular supporting fibrils arranged in a regular pattern. Electron microscopic examination shows that the muscle fibers are, in fact, comparable to the striated muscles of vertebrates in that they contain interdigitating arrays of thick and thin myofilaments which form ...

Ascaris Lumbricoides

Abdominal complications of ascaris lumbricoides in children.

Ascaris lumbricoides is a specific human helminth and children are predominantly affected. It is a manifestation of low socioeconomic status and poor sanitary hygiene. Infestation by ascaris lumbricoides is very common in Turkey. In areas where ascariasis is prevalent, abdominal complications account for a significant number of admissions to the department of pediatric surgery. We have reported...