Jelly-fish, star-fish and sea-urchinsD. Appleton and Company, 1898 - 323 pagini |
Din interiorul cărții
Rezultatele 1 - 5 din 43
Pagina 29
... produces an effect analogous to that which is produced by excision of the margins of swimming - bells . There is an important difference , however , between the two cases , in that the paralyzing effect of the opera- tion on umbrellas ...
... produces an effect analogous to that which is produced by excision of the margins of swimming - bells . There is an important difference , however , between the two cases , in that the paralyzing effect of the opera- tion on umbrellas ...
Pagina 32
... produces total paralysis , while excision of the marginal bodies alone produces merely partial paralysis , there can be no doubt that both causes are combined . Indeed , it has been a matter of the greatest surprise to me how very ...
... produces total paralysis , while excision of the marginal bodies alone produces merely partial paralysis , there can be no doubt that both causes are combined . Indeed , it has been a matter of the greatest surprise to me how very ...
Pagina 34
... produce the smallest effect upon the manubrium . For hours and days after the former , in consequence of this operation , has ceased to move , the latter continues to perform whatever movements are characteristic of it in the unmuti ...
... produce the smallest effect upon the manubrium . For hours and days after the former , in consequence of this operation , has ceased to move , the latter continues to perform whatever movements are characteristic of it in the unmuti ...
Pagina 35
... produced is very seldom of a permanent nature . After a variable period occasional contractions are usually given , or , in some cases , the contractions may be resumed with but little apparent detriment . Considerable differ- ences ...
... produced is very seldom of a permanent nature . After a variable period occasional contractions are usually given , or , in some cases , the contractions may be resumed with but little apparent detriment . Considerable differ- ences ...
Pagina 36
... does the excision of the margin of a swimming organ produce any effect upon the movements of the manubrium , نے CHAPTER III . EXPERIMENTS IN STIMULATION . Mechanical , Chemical 36 JELLY - FISH , STAR - FISH , AND SEA URCHINS .
... does the excision of the margin of a swimming organ produce any effect upon the movements of the manubrium , نے CHAPTER III . EXPERIMENTS IN STIMULATION . Mechanical , Chemical 36 JELLY - FISH , STAR - FISH , AND SEA URCHINS .
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