Hormones
Hormones are chemical substances secreted by endocrine glands
blood stream
Hormones are produced in the endocrine system.
Of course they are hormones. Hormones are only produced by endocrine glands
No,endocrine glands are Ductless.Exocrine glands are the ductile glands.
Endocrine glands do not store hormones in the same way that other glands store substances like sweat or saliva. Instead, endocrine glands produce hormones continuously and release them directly into the bloodstream when needed.
Directly into the Blood Stream. Endocrine Glands release there secretions (hormones) directly into the blood stream. That is why they are unlike Exocrine Glands.
Adrenaline is produced by the endocrine system.
Hormones
Testosterone is the endocrine secretion produced by the testes, which are part of the male reproductive system and the endocrine system.
The substances that are produced are called products.
I believe it's the endocrine system....insulin is produced by the pancreas...