ساينس الصف السادس الإبتدئي الفصل الدراسي الاول ساينس سادسة ابتدائي – ترم أول In This part we will study : Nervous system It is a communication and controlling body system. Functions of nervous system It receives information from the environment and the body, interprets this information and makes the body respond to it. The Neuron: The building unit of the nervous system, it is called nerve cell. The structure of the neuron: 1. The cell body: It contains a nucleus, cytoplasm, plasma membrane. Dendrites: some branches extend from the cell body. Function of dendrites: Connecting neighboring neurons to form synapse. 2. The Axon: A cylindrical axis covered with a fatty layer called myelin sheath. Axon terminals: They are nerve endings of axon connected to the muscle. Synapse: An area in which the terminals of neurons are connected the dendrites of another neuron. لمتابعة مستر احمد الباشا وكل ما يخص الساينس : جروب الفيس بوك http://bit.ly/2Of1mcN صفحة الفيس بوك http://bit.ly/2Gq5xMo بالتوفيق مستر احمد الباشا