Endocrine

It secretes hormones into the bloodstream to regulate body functions.

It produces digestive enzymes to break down food.

It transports oxygen throughout the body.

It protects the body from pathogens.

The nervous system produces longer-lasting effects than the endocrine system.

The endocrine system produces fast, short-lived responses.

The nervous system produces fast, short-lived responses, while the endocrine system produces slower but longer-lasting effects.

The endocrine system does not regulate metabolism.

Proteins

Peptides/Amines

Steroids

Carbohydrates

ACTH

FSH

TSH

GH

Oxytocin

ADH (Vasopressin)

Thyroxine (T4)

Calcitonin

Calcitonin

Parathormone (PTH)

Insulin

Cortisol

Increases blood calcium by bone resorption and intestinal absorption

Lowers blood calcium by inhibiting bone resorption

Regulates metabolism and growth

Balances insulin and glucagon

Insulin

Glucagon

Somatostatin

Cortisol

Adrenaline and Noradrenaline; fight/flight response, heart rate, vasoconstriction

Insulin and Glucagon; blood sugar regulation

Oestrogen and Progesterone; reproductive tract preparation

Testosterone and ICSH; sperm production

Testosterone; Testes

Oestrogen; Ovaries

Adrenaline; Adrenal Medulla

Renin; Kidneys

Erythropoietin

Renin

Gastrin

Secretin

To secrete hormones and maintain homeostasis

To digest food

To transport oxygen

To produce red blood cells