They have several projections all over the surface that we call dendritic spines.ĭendritic spines appear as thorn-like protuberances. Receptors react to the neurotransmitters released from the upstream neurons.ĭendritic spines: Dendrites resemble the main branch of a tree. These receive, process and transfer signals to soma. Receptors: The surface of dendrites contains an array of receptor proteins. Axons connect with other cells at junctions known as synapses. Each telodendria has swollen ends that we call terminal or synaptic boutons. Telodendria: These are the axon’s terminal branches. Axon collaterals resemble tree roots that split into terminal branches. Of all the types, tau is the most prominent MAP.Īxon collaterals: They are the side branches of axons. Microfilament associated proteins ( MAP) within the axons are of low molecular weight. Beyond the initial segment, the axoplasm lacks RER and ribosomes. Within the cytoplasm, mitochondria are present in dispersed form. ![]() Axoplasm contains a cluster of microtubules and neurofilaments. This is due to the nodes of Ranvier over the myelin sheath.Īxoplasm: It makes up the axon’s empty portion or cytoplasmic material.
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