synapse and neurotransmitter

 

Synapses and Neurotransmitter

There is always more than one neuron involved in transmission of nerve impulse from its origin to destination.

There is no physical contact between these neurons, the point at which nerve impulse passes from one to another neuron called synapses.

There are certain agent which are responsible for transmission of nerve impulse from one neuron to another. They are neurotransmitter.

Neurotransmitters are released in synaptic cleft.

The neurotransmitter in brain and spinal codes include - 

Noreadrenaline ( norepinephrine)

Adrenaline (epinephrine)

Dopamine

Histamine

Serotonin

Acetylcholine

Noradrenaline or norepinephrine are responsible for contraction of smooth muscle of Heart and gland which will help in cardiac contraction and secreting.

 adrenaline or epinephrine also help with smooth muscle contraction of heart and gland.

Acetylcholine is responsible for the skeletal muscle contraction.