- neuron degeneration
Cells specialized for receiving, conducting and transmitting impulses in the nervous system are observed to undergo a dramatic decrease in cell volume, collapse of the vacuoles and processes, and complete disintegration of the plasma membrane and most organelles.
- nervous system morphology variant
Animals exhibit variations in the structure or organization of any component that is part of the complement of organ tissues that serve to detect, relay and coordinate information about an animal's internal and external environments and to initiate and integrate its effector responses and activities, compared to that in control animals.
- connection of gonad variant
Any variation that disrupts the connectivity between the somatic gonad and the adjoining tissues compared to control. In C. elegans this connnection is between the somatic gonad and the vulva in hermaphrodites and between the somatic gonad and proctodeum in males.
- male nervous system morphology variant
Male animals exhibit variations in the structure or organization of any component that is part of the complement of organ tissues that serve to detect, relay and coordinate information about an animal's internal and external environments and to initiate and integrate its effector responses and activities, compared to that in control animals.
- fertilization defective
Any perturbation that disrupts the fusion of male and female gametes (sperm and oocyte) during sexual reproduction.
- isthmus corpus slippery
Failure of muscle contractions in the corpus and isthmus to trap and transport bacteria posteriorly in the pharynx.
- associative memory defective
Animals are deficient in their recalled and repeated responses to stimuli they are exposed to during learning and memory paradigms.