On the minute structure and movements of voluntary muscle / By William Bowman, Esq., Demonstrator of Anatomy in King's College, London, and Assistant Surgeon to the King's College Hospital.

  • Bowman, William, Sir, 1816-1892.
Date:
1840
Catalogue details

Licence: Public Domain Mark

Credit: On the minute structure and movements of voluntary muscle / By William Bowman, Esq., Demonstrator of Anatomy in King's College, London, and Assistant Surgeon to the King's College Hospital. Source: Wellcome Collection.

Provider: This material has been provided by King’s College London. The original may be consulted at King’s College London.

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    Fig. 60. Primitive fasciculi from the pectoralis major of a fcetal Calf about two months after conception, showing the corpuscles. Fig. 61. Primitive fasciculi from the pectoralis major of a human nine months foetus, showing the corpuscles here and there, but obscured by the strong trans- verse strise. Fig. 62. Mass of primitive fasciculi from the same, treated with tartaric acid, show- ing numerous corpuscles, turned in various directions, some presenting nucleoli. Fig. 63. Detached corpuscles from the same. Fig. 64. Detached corpuscles from the scalenus of a child two years old (made evident by citric acid). Fig. 65. Corpuscles in a mass of fibres from the adult human stomach, treated with tartaric acid. Fig. 66. Fibres from the adult human stomach, bulged at intervals by their cor- puscles. Without acid. Fig. 67. Mass of fibres from the first stomach of a Sheep; the corpuscles made evident by tartaric acid. Fig. 68. Attachment of tendon to a primitive fasciculus, from the Skate.^ On bring- ing deeper and deeper portions of the specimen into focus, along the line of union between the two structures, fresh tendinous wavy filaments and striated muscular parts came everywhere into view together. Fig. 69. Another specimen from the same, in which the tendon is more spread out. Fig. 70. Two examples of the attachment of tendon to primitive fasciculi from the leg of the large Meat Fly {Musca vomitoria). The centres of the fasci- culi are in focus, and present their row of corpuscles. The scolloped margin at a is the sarcolemma raised by fluid. Its attachments are seen to be to the light strise, or the circumferences of the discs. The terminal disc is a perfect one. PLATE XIX. Fig. 7L Primitive fasciculus from the Water Beetle {Dytiscus marginalis), con- tracted in water, showing the sarcolemma raised in bullse, and a partial separation of the discs. Fig. 72. Smaller primitive fasciculus from the same, in water. The central portion only is contracted, and shows approximation of the strise, increased thick- ness of the fasciculus, and the sarcolemma elevated in vesicles. Fig. 73. Primitive fasciculus from the Tipula, contracted in water, showing the sar- colemma raised by the fluid, and the central row of corpuscles. Fig. 74. Primitive fasciculus from the larva of the Libellula, contracted in water. The sarcolemma is raised into a large bulla. 3 s 2