These are ductless glands

They pour their secretions into the blood

To reach target organs

They secret hormones

Hormones are proteins , steroids

These hormones regulate bodily funtionssuch as metabolism , growth , BP, body temp, sexual growth and reproduction , fluid balane

Growth hormone

Thyroid stimulating hormone

Adreno-corticotrophic hormone

Follicle stimulating hormone

Leutinizing hormone

prolactin

Anti-diuretic hormone

oxytocin

Thyroxine T4

Tri-iodothyronine T3

Hyperthyroidism

Hypothyroidism

Parathormone (pth)

Vitamin D

Insulin – beta cells

Glucagon – alpha cells

Zona glomerulosa – aldosterone

Zona fasiculata – cortisol

Zona reticularis – sex steroids