Which type of material is NOT transported by the blood? Select one: a. blood gases b. nutrients c. lactic acid d. neurotransmitters e. hormones

Option D) neurotransmitters

Explanation:

Neurotransmitters are secreted from the terminal of a neuron and bound by a specific receptor protein in the next neuron. They exists within the neurons of the brain, and NEVER come in contact with blood.

Examples include acetylcholine, glutamate, glycine etc.

the cytokine-activated janus kinase (jak)-signal transducer and activator of transcription (stat) pathway has an important role in the control of immune responses. dysregulation of jak-stat signaling is associated with various immune disorders.