Jelly-fish, star-fish and sea-urchinsD. Appleton and Company, 1898 - 323 pagini |
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Pagina 3
... removed from those more or less offensive features which are so often necessarily incidental to the study of anatomy and physiology in the higher animals . When , for instance , I con- trast my own work in a town laboratory on ...
... removed from those more or less offensive features which are so often necessarily incidental to the study of anatomy and physiology in the higher animals . When , for instance , I con- trast my own work in a town laboratory on ...
Pagina 4
... removed from those more or less offensive features which are so often necessarily incidental to the study of anatomy and physiology in the higher animals . When , for instance , I con- trast my own work in a town laboratory on ...
... removed from those more or less offensive features which are so often necessarily incidental to the study of anatomy and physiology in the higher animals . When , for instance , I con- trast my own work in a town laboratory on ...
Pagina 24
... removed from the animal's body an attached nerve , every time any part of this nerve is stimulated the attached muscle . will contract as before . But it must be carefully observed that there is this great difference between these two ...
... removed from the animal's body an attached nerve , every time any part of this nerve is stimulated the attached muscle . will contract as before . But it must be carefully observed that there is this great difference between these two ...
Pagina 27
... removal of a centre of spon- taneity causes so sudden and so complete a paralysis * I have only met with one individual exception . This occurred in a specimen of Staurophora laciniata , where , after removal of the entire margin ...
... removal of a centre of spon- taneity causes so sudden and so complete a paralysis * I have only met with one individual exception . This occurred in a specimen of Staurophora laciniata , where , after removal of the entire margin ...
Pagina 28
... removed from its margin is as striking a contrast as it is possible to conceive . Hence it is not surprising that if the margin be left in situ , while other portions of the swimming - bell are mutilated to any extent , the spontaneity ...
... removed from its margin is as striking a contrast as it is possible to conceive . Hence it is not surprising that if the margin be left in situ , while other portions of the swimming - bell are mutilated to any extent , the spontaneity ...
Termeni și expresii frecvente
able ambulacral feet artificial rhythm Aurelia aurita become bell blocked brium cause ceased chloroform co-ordination continue contractile strip contractile tissue contraction contraction-waves covered-eyed Medusa crawling curare diastole direction discharge Echinoderm Echinodermata Echinus effect excising excitable tissues experiments fact feeble fibres forceps fresh water function ganglionic glycerine hour Illustrations induction shocks influence instance intervals irritability jelly-fish latter lithocyst locomotor centres manubrium marginal bodies marginal ganglia minutes movements muscle muscular mutilated naked-eyed Medusa natural rhythm nectocalyx nerve nerve-cells nerve-centre nerve-fibres nerve-ring nerve-trunks nervous network nervous system normal sea-water observed occur organ paralyzed pass pedicellariæ pedicels period of latent physiological plexus poison portion prepotent Professor pulsations radial tubes rays reflex reflex action removed response Sarsia seconds segments spasm species specimens spines spontaneity Star-fish strychnia suckers surface swimming motions swimming-bell systole tank temperature tentacles tentacular tetanus Tiaropsis indicans tion umbrella unmutilated animal wave whole