adrenal glands

Zona glomerulosa

• Outer layer of adrenal cortex

• Secretes Aldosterone

• Regulates salt (Na⁺), potassium (K⁺), and blood pressure

• Mnemonic: Salt = Glomerulosa

Zona fasciculata

• Middle layer of adrenal cortex

• Secretes Cortisol

• Controls long-term stress, metabolism, and blood glucose

• Mnemonic: Sugar = Fasciculata

Front: Zona reticularis

Back:

• Inner layer of adrenal cortex

• Secretes Androgens (sex hormones)

• Contributes to puberty and libido

• Mnemonic: Sex = Reticularis

Adrenal medulla

• Center of adrenal gland

• Secretes Epinephrine & Norepinephrine

• Controls fight-or-flight response

• Mnemonic: Medulla = Emergency

G → F → R → M

Go Find Rex, Man”

• Glomerulosa

• Fasciculata

• Reticularis

• Medulla