Key Difference – Ganglion vs Synapse
Peripheral nervous systemis one component of the nervous system of脊椎动物。它由神经细胞和神经节组成。周围神经系统将中枢神经系统(脑和脊髓)连接到身体的其余部分(器官和四肢),以进行所有身体功能的信号传递和协调。有两个主要神经系统属于周围神经系统。他们是somatic nervous system and autonomic nervous system。自主神经系统分为两个主要系统。sympathetic nervous system and parasympathetic nervous system。In order to transmit nerve impulses,neuronsshould work together in the autonomic nervous system. A ganglion is a cluster of neuron cell bodies that house millions of synapses. Synapse is the junction where two neuron cells come closer to propagate nerve impulse. Synapse is located in the ganglion. Thekey difference在神经节和突触之间神经节容纳数百万的突触,而突触是一个小连接,在信号传输过程中,两个神经元更接近。
内容
1.Overview and Key Difference
2.What is Ganglion
3.什么是突触
4.Similarities Between Ganglion and Synapse
5.并排比较 - 为表格的神经节与突触
6。概括
What is Ganglion?
A ganglion is a collection of cell bodies in the peripheral nervous system. There are millions of synapses located in a ganglion. Ganglia are appeared in the body based on their function and which division of the autonomic system. Ganglia are connected with each other and form a complex of ganglia known as plexus. Ganglia provide relay points and intermediary connections between neurons of the nervous system.
有两种类型的神经节。交感神经和副交感神经节。同情神经节are found closer to the spinal cord.Parasympathetic gangliaare found near or even inside the effector organs. Ganglia are surrounded by a connective tissue capsule. Ganglia are oval-shaped structures that are composed of cell bodies such as,neuron cells, glial cells和connective tissue。There are three types of vertebrate ganglia. They are Cranial nerve ganglia, Dorsal root ganglia and Autonomic ganglia. There is a ganglion called pseudoganglion. It doesn’t contain nerve cells. It has only nerve fibres.
什么是突触?
Neurons or nerve cells are not physically connected. There is a gap between orderly arranged neurons. Synapse is the area where two neurons come closer. When the action potential reaches the end of the first neuron (presynaptic neuron), the synapse facilitates the handover of the action potential to the adjacent neuron that is known as a postsynaptic neuron. Presynaptic membrane becomes positively charged, and it releasesneurotransmitters进入synaptic cleft。
Neurotransmitters are the chemical messengers of the nervous system. They are stored in the vesicles of the presynaptic. They diffuse through the synaptic cleft and bind with the receptors located on the surface of the postsynaptic membrane. Likewise, the action potential propagates through neurons until it receives by the target organ. The synapse is located in the ganglion.
What are the Similarities Between Ganglion and Synapse?
- Ganglion and synapse are two structures of the nervous
- Both are involved in nerve impulse transmission.
- Both are connected to neurons.
神经节和突触有什么区别?
Ganglion vs Synapse |
|
神经节是一组神经元的簇,它们组成了数百万个突触。 | 突触是这两个神经元更接近的两个神经元的连接。 |
功能 | |
Ganglion houses millions of synapses. | 突触促进神经元间隙之间的神经冲动传播。 |
作品 | |
Ganglion is composed of cell bodies of nerve cells, connective tissue and glial cells | Synapse is composed of a presynaptic membrane, neurotransmitters, receptors and postsynaptic membrane. |
Structure | |
神经节包含数百万的突触。 | Synapse is a junction where two neurons meet. |
概括–Ganglion vs Synapse
神经元是神经系统的细胞。他们没有身体上的联系。神经元通过化学突触连接。突触是两个神经元之间传播动作电位的连接区域。突触促进了从突触前神经元的轴突到突触后神经元或靶神经元树突的信号传递。它通过称为神经递质的化学信使发生。神经元身体的收集被称为神经节。神经节包含数百万的突触。有两种类型的神经节。交感神经和副交感神经。 Sympathetic ganglia are located near to spinal cord while parasympathetic ganglia are located closer to effector organs. This is the difference between ganglion and synapse.
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You can download PDF version of this article and use it for offline purposes as per citation note. Please download the PDF version here:神经节和突触之间的差异
Reference:
1.“The synapse (Article) | Human biology.” Khan Academy.Available here
2.“神经节。”Wikipedia,Wikimedia基金会,2018年1月24日。Available here
Image Courtesy:
1.’ganglion高杂志nephron - 自己的工作,(CC BY-SA 3.0)viaCommons Wikimedia
2.’Synapse diagram picture’By维基百科(CC BY-SA 4.0)viaCommons Wikimedia
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