- Satellite cell
Satellite cells in skeletal muscle proliferate and reconstitute the damaged part of the myofibers. They are supportive cells for maintenance of muscle and a source of new myofibers after injury or after increased load. There is no dedifferentiation of myocytes into myoblasts (answer b), or fusion of damaged myofibers to form new myotubes (answer c). Hypertrophy, not hyperplasia
(answer d),occurs in existing myofibers in response to increased load.
- Endothelial cell
A thin layer that lie in the inner surface of blood vessels and lymphatic vessels. 简言之，就是血管或者淋巴内壁的那层细胞。通常归为上皮细胞的一种。
Animal tissues can be grouped into four basic types: connective, muscle, nervous, and epithelial. (结缔组织，肌肉组织，神经组织，上皮组织）。
- Fibroblast (成纤维细胞）:
- pericyte (周细胞）
- macrophage （巨噬细胞）
one of white blood cells, play role in ingesting the pathogen.