Neurokinin A

**Definition:** A mammalian neuropeptide of 10 amino acids that belongs to the tachykinin family. It is similar in structure and action to SUBSTANCE P and NEUROKININ B with the ability to excite neurons, dilate blood vessels, and contract smooth muscles, such as those in the BRONCHI.

**Tree numbers:** - D12.644.276.812.900.500 - D12.644.400.800.500 - D12.644.456.800.500 - D12.776.467.812.900.500 - D12.776.631.650.800.500 - D23.469.050.375.850.550 - D23.529.812.900.500

**Synonyms:** - Neurokinin alpha - Neuromedin L - Substance K