The Three Classes of Vertebrate Endocrine Hormones Are_________ ,_________

question 47

Essay

The three classes of vertebrate endocrine hormones are_________ ,_________ , and_________ .

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Definitions:

Polarized

A term indicating something is divided into two sharply contrasting groups or sets of opinions or beliefs.

Transmitter Substances

are chemical substances, such as neurotransmitters, that transmit nerve impulses across synapses between nerves or from nerves to muscles or organs.

Neuron

A specialized cell transmitting nerve impulses; a nerve cell.

Reuptake

The process by which neurotransmitters are taken back into the synaptic vesicles from where they were originally released, thus terminating the signaling between neurons.