(a) Define hormone. (b) Name a hormone secreted by a muscle cell and a hormone secreted by a neuron.
(a) Define hormone. (b) Name a hormone secreted by a muscle cell and a hormone secreted by a neuron.
We can say that The endocrine system consists of glands like pituitary glands and organs like reproductive organs (testes and ovaries). The endocrine system works via endocrine signaling. It acts through hormones. They play a major role in homeostasis.
a) Hormones are non-nutrient intercellular chemical messengers that are released by endocrine glands directly released into the bloodstream The site of action of hormones is far from the site of the release. They are released in one part of the body and binds to the receptors of the target cells in other parts of the body.
For example, Calcitonin is a hormone produced by the parafollicular cells of the thyroid glands. It can decrease the level of calcium in the blood by inhibiting the action of osteoclasts, the cells that break down the extracellular matrix. It plays a role in calcium homeostasis.
Trending now
This is a popular solution!
Step by step
Solved in 4 steps
