Objective To analyze quantitatively fine-structures of hippocampal CA1 axospinous synapses in aged mouse in order to provide the neuroanatomical evidence for the aged-associated learning and memory impairments.

• 目的观察老年小鼠海马CA1区轴棘突触相关结构的改变,为衰老引起的学习记忆减退提供神经解剖学依据。