Scott J J, Young H
Department of Zoology, University of Durham.
J Anat. 1987 Apr;151:143-55.
An analysis has been made of the numbers and distributions of muscle spindles and tendon organs in the three peroneal muscles of the lower hindlimb of the adult cat. Both peronei brevis and tertius were richly supplied with spindle capsules and tendon organs in comparison with peroneus longus and other muscles of the cat's lower hindlimb. A large number of the capsules in each muscle was involved in tandem linkages, some of these capsules comprising only a bag and some chain fibres. Such capsules were especially prevalent in peroneus tertius. The numbers of extrafusal muscle fibres inserting into each tendon organ indicated that the activity of each motor unit should be monitored by at least one tendon organ. The distributions of the receptors are discussed in relation to the proportion and density of oxidative muscle fibres.
对成年猫后肢下部三块腓骨肌中肌梭和腱器官的数量及分布进行了分析。与腓骨长肌和猫后肢下部的其他肌肉相比,腓骨短肌和第三腓骨肌富含梭囊和腱器官。每块肌肉中的大量梭囊参与串联连接,其中一些梭囊仅包含一个袋状纤维和一些链状纤维。这种梭囊在第三腓骨肌中尤为普遍。插入每个腱器官的梭外肌纤维数量表明,每个运动单位的活动应由至少一个腱器官进行监测。结合氧化型肌纤维的比例和密度对感受器的分布进行了讨论。