<prompt> Peripheral chemoreceptors respond to hypoxia using which channel?Calcium channelSodium channelPotassium channelChloride channel  <response>: PERIPHERAL CHEMORECEPTOR: - Located in several areas outside the brain, mostly in carotid bodies aoic bodies - They are especially impoant for detecting changes in O2 in the blood lesser extent to changes in CO2 H ion concentration - Aoic carotid bodies have multiple, highly characteristic glandular like cells called GLOMUS CELLS that synapse directly or indirectly with nerve endings, they serve as chemoreceptor - Low Po2 stimulate glomus cells in aoic carotid bodies O2 sensitive potassium channels in glomus cells are inactivated Resulting in Cell depolarization Which in turn Opens voltage gated calcium channels Increases Intracellular Ca ion concentration Stimulate neuro transmitter release Which activates afferent neurons that sends signals to CNS Stimulates respiration - During hypoxia ATP mainly, ach dopamine are excitatory Neurotransmitters. 