M line absent

Animals lack the planar structure within the muscle sarcomere which lies midway within the thick filament (A) band, attaching to the plasma membrane at its base and running up towards the inward surface of the myofilament lattice, compared to control animals (Wormatlas).

M line variant

Animals exhibit variations in the form, structure or composition of a planar structure within the muscle sarcomere which lies midway within the thick filament (A) band, attaching to the plasma membrane at its base and running up towards the inward surface of the myofilament lattice, compared to control animals (Wormatlas).

excretory canal short

The structure made by the processes of the excretory canal cell is reduced in size compared to control. In C. elegans this is an H-shaped structure which extends almost the full length of the body on both sides of the animal, generally in contact with the lateral hypodermis and the pseudocoelom (Wormatlas).

excretory canals long

The structure made by the processes of the excretory canal cell is increased in size compared to control. In C. elegans this is an H-shaped structure which extends almost the full length of the body on both sides of the animal, generally in contact with the lateral hypodermis and the pseudocoelom (Wormatlas).