Neurokinin B

**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 A with the ability to excite neurons, dilate blood vessels, and contract smooth muscles, such as those in the URINARY BLADDER and UTERUS.

**Tree numbers:** - D12.644.276.812.900.550 - D12.644.400.800.550 - D12.644.456.800.550 - D12.776.467.812.900.550 - D12.776.631.650.800.550 - D23.469.050.375.850.570 - D23.529.812.900.550

**Synonyms:** - Neurokinin beta - Neuromedin K