THE CELL
CELL COMMUNICATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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White blood cells bumping into each other sharing antigen info
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Neurons communicating across a synapse
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Hormones traveling through the blood stream to target tissues
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Detailed explanation-1: -In long-distance endocrine signaling, signals are produced by specialized cells and released into the bloodstream, which carries them to target cells in distant parts of the body. Signals that are produced in one part of the body and travel through the circulation to reach far-away targets are known as hormones.
Detailed explanation-2: -In endocrinology, target cells can refer to the cells where hormones have an effect. Target cells are capable of responding to hormones because they display receptors to which the circulating hormone can bind.
Detailed explanation-3: -Endocrine hormone are secreted into the blood and carried by blood and tissue fluids to the cells they act upon, while exocrine hormones are secreted into a duct, and then into the bloodstream.
Detailed explanation-4: -Endocrine glands make chemicals called hormones and pass them straight into the bloodstream. Hormones can be thought of as chemical messages. From the blood stream, the hormones communicate with the body by heading towards their target cell to bring about a particular change or effect to that cell.
Detailed explanation-5: -In paracrine signaling, hormones are released into the fluid between cells (the interstitial fluid) and diffuse to nearby target cells.