There are two principal cell types in the pineal; the pinealocyte that is a highly modified neuronal cell and that secretes melatonin, and glial cells.

• 松果体中有两种主细胞,一种是松果体细胞,它是高度异化的神经细胞,可以分泌褪黑素,另外一种是胶质细胞。