- muscle birefringence variant
Animals exhibit a weak and abnormal birefringency pattern in muscle fibers when examined using polarized optics.
- body wall muscle development variant
Any variation in the progression of the principal muscle cell type whose contractile activity generates body motion in the nematode over time compared to control. In C. elegans they consist of 95 unfused cells in the adult organized into four muscle quadrants. Their sarcomeres are obliquely striated and lie lengthwise along the body wall (Wormatlas).
- muscle arm development variant
Variations in the progression of the process extension from the muscle belly by which the muscle cells reach to the nerve cords to obtain innervation over time from initial formation to mature structure compared to control (Wormatlas).
- vulval muscle variant
Any variation in the progression of the sex-specific muscles in the hermaphrodite, over time, that are specialized for egg-laying compared to control. In C. elegans the contractions of the vulval muscles open the lips of the vulva to help in expelling an egg from the uterus (Wormatlas).
- uterine muscle variant
Any variation in the progression of the sex-specific muscles of the hermaphrodite, over time, whose contractions squeeze on the uterus to help move eggs towards the vulval opening compared to control (Wormatlas).
- head muscle behavior variant
Variations in the specific actions or reactions of the head muscles in response to external or internal stimuli compared to that observed in control animals.
- striated muscle development variant
Variations in the progression of muscle cells that contain fibers that are divided by transverse bands into striations, over time from an initial condition to a later condition compared to control animals.
- body muscle displaced
The arrangement of the principal muscle cell type whose contractile activity generates body motion in the nematode differs from that observed in control animals. In C. elegans they consist of 95 unfused cells in the adult organized into four muscle quadrants. Their sarcomeres are obliquely striated and lie lengthwise along the body wall (Wormatlas).
- muscle cell attachment variant
Any variation in the connection of a cell whose principal function is to provide contractile forces with its neighboring cells or tissues compared to control.