. Il encyclopaedia - Wikizionario di anatomia e fisiologia. Anatomia e fisiologia; Zoologia. Muscolo. crescere scuro. L'aggiunta di un po' di acido, come sempre, un rigonfiamento della fibra, obliterates le linee trasversali, e porta i corpuscoli in vista, non solo in questo periodo in anticipo, ma ad ogni successivo, anche alla vecchiaia. In insetti, nuclei nelle primissime fasi sono una singola o doppia serie nell'asse della fibra e in per- fect fibre mantengono la stessa posizione (maschere. 292 e 293, c). In classi di vertebrati hanno una corrispondenza simile, essendo scat- strate equamente in tutta la massa in entrambi e fetale

• Collaboratore: Central Historic Books / Alamy Foto Stock
• ID dell’immagine: PFN627
• Dimensioni dei file: 7,1 MB (369,4 KB Download compresso)
• Liberatorie: Modello - no | Proprietà - no
• Dimensioni: 1620 x 1542 px | 27,4 x 26,1 cm | 10,8 x 10,3 inches | 150dpi

Altre informazioni

Questa foto è un'immagine di pubblico dominio, il che significa che il copyright è scaduto o che il titolare del copyright ha rinunciato a tale diritto. Alamy addebita un costo per l'accesso alla copia ad alta risoluzione dell'immagine.

Questa immagine potrebbe avere delle imperfezioni perché è storica o di reportage.

. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. MUSCLE. grow dark. The addition of a little acid, how- ever, swells the fibre, obliterates the cross lines, and brings the corpuscles into view, not only at this early period, but at every subsequent one, even to old age. In insects, the nuclei in the earliest stage are a single or double series in the axis of the fibre, and in the per- fect fibre they hold the same position (Jigs. 292 and 293, c). In the Vertebrate classes they have a like correspondence, being scat- tered equally throughout the mass, in both foetal and adult states. Where the fibre is small, however, they usually abound more towards the surface. They are oval and flat, and of so little substance, that though many times larger than the primitive particles, and lying amongst them, they do not interfere with their mutual apposition and union. These corpuscles are frequently the cause of irregular dark longitudinal streaks, seen in the fibre by transmitted light. They usually contain some central granules or nucleoli (Jig. 295). It is doubtful whether the corpuscles or nuclei originally present remain through life, or whe- ther successive crops advance and decay during the progress of growth and nutrition. But it is certain, that, as development proceeds, fresh corpuscles are deposited, since their absolute number is far greater in the adult than in the foetus, while their number, relatively to the bulk of the fibre, at these two epochs, remains nearly the same. 7. Of the sarcolemma, or tunic of the ele- mentary fibre.—This is a simple transparent homogeneous membrane of extreme tenuity, but very tough and elastic, which, in the form the swollen mass emerges at its broken and open end : but, if this is not effected with suf- ficient celerity, the sarcolemma may give way at different points, being burst by the mass, which thus forms herniae. Such protruding masses being unequallv stretched have their transverse and longitudina

Parole chiave associate all'immagine

• bo
• booksubjectanatomy
• booksubjectphysiology
• booksubjectzoology