What are synapses and how are they classified?

Synapses can be classified by the type of cellular structures serving as the pre- and post-synaptic components. The axon can synapse onto a dendrite, onto a cell body, or onto another axon or axon terminal, as well as into the bloodstream or diffusely into the adjacent nervous tissue.

What type of synapses are found in the CNS?

Physiology of the Neuron The axodendritic synapses are either excitatory or inhibitory. Axodendritic synapses are the commonest type of synapse in the CNS and are described fully in Chapter 6, p. 110. Axosomatic synapse: here the axon synapses directly with the soma – these may be excitatory or inhibitory.

What is a synapse in nervous system?

synapse, also called neuronal junction, the site of transmission of electric nerve impulses between two nerve cells (neurons) or between a neuron and a gland or muscle cell (effector). A synaptic connection between a neuron and a muscle cell is called a neuromuscular junction.

What type of synapse dominates the nervous system?

The correct answer is electrical. From the given choices, electrical synapse dominates the nervous system.

Are all synapses the same?

There are two types of synapses found in your body: electrical and chemical. Electrical synapses allow the direct passage of ions and signaling molecules from cell to cell. In contrast, chemical synapses do not pass the signal directly from the presynaptic cell to the postsynaptic cell.

What is neuronal synapses?

synapse, also called neuronal junction, the site of transmission of electric nerve impulses between two nerve cells (neurons) or between a neuron and a gland or muscle cell (effector). Electrically charged ions then flow through the channels into or out of the neuron.

What is structure of synapses?

The synapse consists of three elements: 1) the presynaptic membrane which is formed by the terminal button of an axon, 2) the postsynaptic membrane which is composed of a segment of dendrite or cell body, and 3) the space between these two structures which is called the synaptic cleft.