Endocrine System
The endocrine system produces hormones.
It is closely integrated with the nervous systems as well as with the immune system.
Bone: Fibroblast Growth Factor 23
Renin-angiotensin-aldosterone system
Veins
References
https://www.ncbi.nlm.nih.gov/books/NBK344077/
Organogenesis, Tissue Structure and Function of the Body Systems
Digital World Medical School
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