An <u><em>antidepressant</em></u> such as Prozac mimics the effects of the nurotransmitter serotonin, whereas a <em><u>dopamine antagonist</u></em> include antipsychotic drugs that block the action of theneurotransmitter dopamine.
Answer:
The correct answer is option C.
Explanation:
Cardiac muscle is present only in the Heart of organisms which is involuntary in its action. The heart helps the blood to pump throughout the body.
Cardiac muscle shows the presence of intercalated discs which contain desmosomes and gap junctions. It is the presence of these gap junctions the muscle cells of the heart functions as a single functional unit due to the transmission of depolarizing current from cell to cell to different chambers of the heart.
Thus, option C is the correct answer.
<span>Stimulation of thoracic or lumbar spinal regions; impulse reaches chain ganglion; acetylcholine release</span>. Acetylcholine is released if the synapse happens in the sympathetic ganglion, if the synapse is in post-ganglionic neuron, norepinephrine is released.
Plasmids, they are mostly found in bacterial cells and they r the cause of antibiotic resistance in bacteries :)
