Akinesic Apraxia

AKINESIC APRAXIA (from Greek a - negative particle, and kineo - I move), a symptom expressed as difficulty in complex actions, as well as simple ones, due to the absence of initiative. A. a. is caused by foci in the frontal lobes of the brain. Closer than to amnesia (see), apraxia stands in relation to akinesias (see), which arise as a result of disease of the frontocerebellar pathway. Akis spinosa, a beetle from the family Tenebrionidae, is an intermediate host of the tapeworm Hymenolepis diminuta (rat tapeworm). The beetle eats the tapeworm eggs with rat feces. The larvae emerging from them bore through the intestinal wall of the beetle and enter the body cavity, where they grow into a bladder-like form, i.e., into cysticercoids. When rats accidentally eat such beetles, the heads of the cysticercoids evert in the rat's intestine and attach to the intestinal mucosa. The head produces segments, thanks to which the tapeworm forms, which can be a human parasite. For methods of human infection, see Human parasites and Tapeworms.