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E XPERIMENTAL denervation studies of muscle have been carried out to a considerable extent in order to observe the process of atrophy. The majority of investigations have been performed on the gastrocnemius muscle in the white rat (I). It was believed desirable to obtain further information on the effects of denervation on another muscle, preferably one(More)
Portions of the latissimus dorsi (LD) muscle are frequently employed as free muscle or myocutaneous grafts. The functional consequences for both the graft and the remaining donor tissue must depend in part on the neural organization of the muscle. Previous anatomical and clinical reports have suggested that the LD is organized into independently innervated(More)
Gross and histologic studies of human and canine latissimus dorsi muscle were carried out to identify anatomic and histochemical properties that may be relevant to its use as a resource muscle, particularly for heart reconstruction. In both human and canine latissimus dorsi, three distinct muscle segments were observed, differing in direction of fibers,(More)
The use of the latissimus dorsi muscle for cardiomyoplasty requires accurate assessment of the outcome of methods used to convert fast fibers to slow fibers. A knowledge of the normal distribution pattern of slow fibers within the latissimus dorsi is necessary for this endeavor. Fresh latissimus dorsi and teres major muscle tissues from seven pigs, one(More)
1. The effect of denervating the hemidiaphragm of the quokka (Setonyx brachyurus), hamster, guinea pig and bat (Myotis pallidus) was determined. The hemidiaphragm of the quokka neither hypertrophied nor atrophied during the period of 171 days (Fig. 1). The hemidiaphragm of the hamster exhibited a slight hypertrophy, about 5%, during the first week and by 28(More)
In a series of 15 studies in dogs, sternocleidomastoid muscle was used to replace deficits created in left ventricular myocardium and sternohyoid muscle was used to replace portions of right myocardial wall. The five right ventricular autotransplants resulted in a 100% surgical success rate, with animals electively killed between 3 and 55 weeks after(More)