Click on the only statement below that is true A single chemical substance can o

Question

Click on the only statement below that is true A single chemical substance can only be classified as one of the following: a hormone, a neurotransmitter, a paracrine substance, or an autocrine substance Throughout the body, there are only a small number of endocrine glands and A single endocrine gland only secretes one type of Endocrine glands secrete their products into a duct, from where the secretions either exit the body (i.e. sweat) or enter the lumen of another organ (i.e. stomach) Chemical messengers released into the blood by axon terminals in the posterior pituitary are called neurotransmitters. All hormones reach their target cells by traveling in the blood. The target cell fora hormone must be located The heart is not considered part of the endocrine system. Exocrine glands are very close to the hormone- ductless glands that release hormones into the blood secreting cell

Explanation / Answer

The following statement is true:

All hormones reach their target cells by travelling in the blood

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