List of Hormones in Human Body & their Functions

Hormones are the chemical messengers released inside the body.
They are the part of normal physiology and regulate the system based on the signals from brain.
They do directly make a signal on the respective organ system for the changes to happen.
So they are like messenger carrying message from the brain to the organs.
They are produced by secretory cells of specific glands.
These glands are of different types and release the hormone into the blood when blood flows through them. Hence they are termed as endocrine glands.
Like wise most of the hormones are named after the gland from which they are secreted.

These are then carried by blood into target tissues where they show their effect.

They regulate most of the body physiology and functions. They bring such changes by acting at the level of genetic material or protein formation machinery of the cell.

These hormones if deficient or if excess can lead to hormonal disorders. These can have deleterious effect on the health and physiology.

So how many hormones are there in the human body? Below is the comprehensive list with their functions.

List of human Hormones and their Functions
Gland/TissueHormones
HypothalamusThyrotropin-releasing hormone (TRH)
Corticotropin-releasing hormone (CRH)
Growth hormone-releasing hormone (GHRH)
Growth hormone inhibitory hormone (GHIH) (somatostatin)
Gonadotropin-releasing hormone (GnRH)
Dopamine or prolactin-inhibiting factor (PIF)
Anterior pituitaryGrowth hormone
Thyroid-stimulating hormone (TSH)
Adrenocorticotropic hormone (ACTH)
Prolactin
Follicle-stimulating hormone (FSH)
Follicle-stimulating hormone (FSH)
Luteinizing hormone (LH)
Posterior pituitaryAntidiuretic hormone (ADH) (also called)
Oxytocin
ThyroidThyroxine (T4) and triiodothyronine (T3)
Calcitonin
Adrenal cortexCortisol
Aldosterone
Adrenal medullaNorepinephrine, epinephrine
PancreasInsulin (β cells)
Glucagon (α cells)
ParathyroidParathyroid hormone (PTH)
TestesTestosterone
OvariesEstrogens
Progesterone
PlacentaHuman chorionic gonadotropin (HCG)
Human somatomammotropin
Estrogens
Progesterone
KidneyRenin
1,25-Dihydroxycholecalciferol
Erythropoietin
HeartAtrial natriuretic peptide (ANP)
StomachGastrin
Small intestineSecretin
Cholecystokinin (CCK)
AdipocytesLeptin
From the above list, the ones secreted by hypothalamus, anterior and posterior pituitary are formed in brain. While rest are formed outside the brain.
The ones released from brain regulate the secretion of other hormones.
For a comprehensive understanding of origin of hormones and their function in the body refer to the article TYPES OF GLANDS & THEIR FUNCTION.

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  1. stephanie

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