Twitch or no twitch? The cutaneous trunci reflex.
Summary of "Twitch or no twitch? The cutaneous trunci reflex."
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University College Dublin and Massey University, New Zealand.
This article was published in the following journal.
Name: The Journal of small animal practice
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/22845845
- DOI: http://dx.doi.org/10.1111/j.1748-5827.2012.01267.x
Medical and Biotech [MESH] Definitions
That phase of a muscle twitch during which a muscle returns to a resting position.
An abnormal reflex consisting of dorsiflexion of the great toe and abduction of the other toes in response to cutaneous stimulation of the plantar surface of the foot.
Muscle Fibers, Slow-twitch
Skeletal muscle fibers characterized by their expression of the Type I MYOSIN HEAVY CHAIN isoforms which have low ATPase activity and effect several other functional properties - shortening velocity, power output, rate of tension redevelopment.
Muscle Fibers, Fast-twitch
Skeletal muscle fibers characterized by their expression of the Type II MYOSIN HEAVY CHAIN isoforms which have high ATPase activity and effect several other functional properties - shortening velocity, power output, rate of tension redevelopment. Several fast types have been identified.
Involuntary contraction of the muscle fibers innervated by a motor unit. Fasciculations can often by visualized and take the form of a muscle twitch or dimpling under the skin, but usually do not generate sufficient force to move a limb. They may represent a benign condition or occur as a manifestation of MOTOR NEURON DISEASE or PERIPHERAL NERVOUS SYSTEM DISEASES. (Adams et al., Principles of Neurology, 6th ed, p1294)
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