Endocrine system gonads, have secondary endocrine functions. For example, the kidney secretes endocrine hormones such as erythropoietin and renin. Hormones can consist of either amino acid complexes, steroids, eicosanoids, leukotrienes, or prostaglandins. The endocrine system is in contrast to the exocrine system, which secretes its hormones to the outside of the body using ducts. As opposed to endocrine factors that travel considerably longer distances via the circulatory system, other signaling molecules, such as paracrine factors involved in paracrine signalling diffuse over a relatively short distance. The word "endocrine" derives via New Latin from the Greek words , "endon", "inside, within," and ,
Attunement through a person, and that the clarity of the pneumaplasmic body depends on the clarity of that energy flow. Attunement practitioners focus on clarifying and enriching the pneumaplasm associated with the endocrine glands and the anatomical systems of the body. Practitioners believe that the endocrine glands translate seven aspects of the universal life energy into the human experience. They name these as the Seven Spirits. Attunement practitioners relate these Seven Spirits to the Seven Spirits of God referenced in the book of Revelation in the Bible. Some Attunement practitioners correlate the seven endocrine glands with seven chakras. At the core