[Statocyst regulation of the heart and statokinetic reflexes in the crab, Hemigrapsus sanguineus, during linear acceleration].
In experiments on the shore crab H. sanguineus studies have been made of the effect of variable longitudinal acceleration during swinging (for 15--30 min) upon cardiac activity and gravitational reflexes. High sensitivity of gravitational receptors of the canal statocyst to the effect of acceleration was demonstrated. Removal of the statocysts increases the frequency and amplitude of cardiac contractions as revealed by ECG recording. Changes in stato-kinetic coordinations cause both the disorder of overturning reactions and the disorder of reciprocal inhibition in antagonistic muscles of the dactylopodite. Statocyst regulation of skeletal muscles and heart is presumably realised via contralateral inhibitory canal which is sensitive to linear accelerations.
D000054:Acceleration; D000818:Animals; D003386:Brachyura / Q000502:physiology*; D004562:Electrocardiography; D006112:Gravitation; D006321:Heart / Q000502:physiology*; D007698:Kinesis / Q000502:physiology*; D009949:Orientation / Q000502:physiology*; D011187:Posture; D012018:Reflex / Q000502:physiology*
Statotsistnaia reguliatsiia serdtsa i statokineticheskikh refleksov pri lineĭnom uskorenii u kraba Hemigrapsus sanguineus.