释义 |
perimysium noun[ C or U ] anatomy specializeduk /ˌper.iˈmiː.si.əm/ us /ˌper.əˈmiː.zi.əm/pluralperimysiauk /ˌper.iˈmiː.si.ə/ a layer of tissue that surrounds groups of muscle fibres: Striped or voluntary muscle is composed of bundles of fibres, each enclosed in a delicate web called the perimysium. Very thick collagen layers composed of several fibre bands were observed in the perimysia of the muscle. It involves the atrophy of muscle fibres around the periphery of a fascicle, near the perimysium. In two of the samples, small areas of necrosis were evident in the perimysium. Around all the larger muscles there is a connective tissue sheath, or external perimysium. SMART Vocabulary: related words and phrases Substances & structures in the body abductor accessorius ACL actin adductor fundus funiculus fusiform glomerular glomerulus myosin navicular neuroendocrine neurohormonal neurohormone tendinous tendinum tendo tensor Th |