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Answer: A. Epinephrine functions as a hormone in the endocrine system and as a neurotransmitter in the nervous system.
Explanation: Epinephrine can act as a hormone and also as a neurotransmitter. Epinephrine can also be referred to as adrenaline.
The adrenaline is a hormone that is secreted mainly by the medulla of the adrenal glands and the Epinephrine primary function is to increase cardiac activities and also to increase the level of glucose in the blood. Its actions vary by tissue type and tissue expression of adrenergic receptors. Epinephrine acts on nearly all body tissues.
Peripheral. This connects to the central nervous system but detects signals from the sensory organs such as the eyes.
