Observations on the Moulting of the Silkworm and a Histological Study of the Moulting Gland During Functioning ...Stanford University, 1929 - 72페이지 |
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12 페이지
... . Preceding ecdysis the muscular pull in the thorax diminishes . The cuticular contact with the muscles in this region being completely separated , the inner body swells and fills out and straightens the folds in the -12-
... . Preceding ecdysis the muscular pull in the thorax diminishes . The cuticular contact with the muscles in this region being completely separated , the inner body swells and fills out and straightens the folds in the -12-
13 페이지
Sibyl Wachter. swells and fills out and straightens the folds in the integument previously noted in the dorsal mesothorax and metathorax . This swelling ... body segments as a whole begin and the inner body continues to srell as described ...
Sibyl Wachter. swells and fills out and straightens the folds in the integument previously noted in the dorsal mesothorax and metathorax . This swelling ... body segments as a whole begin and the inner body continues to srell as described ...
15 페이지
Sibyl Wachter. body begins to move forward and the markings of the inner body contrast with those above . At this ... swells until it bursts the old cuticula as previously mentioned and its elongation , segment by segment , exposes the new ...
Sibyl Wachter. body begins to move forward and the markings of the inner body contrast with those above . At this ... swells until it bursts the old cuticula as previously mentioned and its elongation , segment by segment , exposes the new ...
목차
THE SPINNING PERIOD BEHAVIOR OF LARVA | 5 |
THE GLOSSY STAGE FIRST INDICATIONS OF MOULTING | 8 |
THE ACTIVE STAGE MUSCULAR CONTRACTIONS | 11 |
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active stage adheres closely alimentary canal anal horn appear Bellesne beneath the old blood body begins body continues Bombyx mori ceases to feed chitinous chitogenous digestive tube DORSAL GLAND dorsal horn drawn ectoderm elongate exerted exuvial rupture Fahr fifteen pairs FIGURE IV DORSAL fixed position folds glossy stage head and thorax HISTOLOGICAL STUDY hours before ecdysis hypodermal cells insect integument Knab labium larva larva feeds larval head last half hour leaf mandibles maximum swelling ments mesothorax METATHORAX moulting fluid moulting glands mouth cavity muscle attachments muscular action neck membrane nuclear material observation Odonata oesophagus old capsule old cuticula becomes old head capsule old skin peritreme posterior segments posteriorly preceding ecdysis preceding the rupture pressure previously described process of moulting region rupture takes place Shafer silkworm slight slipped spinning period spiracle stomodaeum stretched texture thoracic cuticula threads tion tracheal linings transparency triangle stage twenty-four uplifted ventral Verson wave