Sahib drew a picture showing that the heart is made mostly of muscles. He wants to write a sentence about the muscles to go with his picture. Based on this evidence, what should he claim to be the function of the muscles?
a. transport fluidsb. protect organsc. push and move structuresd. produce new cells

Neurotransmitters are messengers responsible for communication between neurons. they are released from synaptic vesicles and are received by receptors.  the communication is referred to as neurotransmission. the following statement is true about neurotransmitters: a. they're stored in synaptic vesicles in the axon.