GENERAL ANATOMY
ENDOCRINE SYSTEM
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the lungs
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the heart
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individual target cells
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the brain
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Detailed explanation-1: -Endocrine glands release hormones into the bloodstream. This lets the hormones travel to cells in other parts of the body. The endocrine hormones help control mood, growth and development, the way our organs work, metabolism, and reproduction. The endocrine system regulates how much of each hormone is released.
Detailed explanation-2: -The term “endocrine” implies that in response to specific stimuli, the products of those glands are released into the bloodstream. The hormones then are carried via the blood to their target cells.
Detailed explanation-3: -Paracrine, autocrine and synaptic are three types of local hormone signaling. In paracrine signaling, hormones are released into the fluid between cells (the interstitial fluid) and diffuse to nearby target cells.
Detailed explanation-4: -Intracellular Hormone Receptors Once outside the cell, they bind to transport proteins that keep them soluble in the bloodstream. At the target cell, the hormones are released from the carrier protein and diffuse across the lipid bilayer of the plasma membrane of cells.
Detailed explanation-5: -The “target” cells for a particular hormone have receptors, either on the cell membrane, or the case of lipid soluble hormones that can pass through the membrane, inside the cell. Only the cells that have the special receptors for that hormone will respond to exposure.