Dry erase Hormones

How Cortisol is made

1. Hypothalamus secretes CRH

2. Anterior pituitary secretes ACTH

3. Adrenal gland cortex secretes cortisol

Function of cortisol

Glucose regulation (anti-insulin)

Immunity

BP regulation

How to differentiate increased cortisol causes

Dexamethasone suppression test

• Pituitary tumor (Cushing disease)

  • Normal Cortisol

• Adrenal tumor

  • High cortisol

  • Low ACTH

• Atopic tumor

  • High cortisol

  • High ACTH

Catecholamines made by

Adrenal gland medulla

Catecholamines specimen sample

Urine

Increased Catecholamines conditions

Neuroblastoma (children)

Pheochromocytoma (adults)

Where ADH is made

Hypothalamus

Where ADH is secreted

posterior pituitary gland

What signals ADH

Low blood H2O

Low ECF

Low BP

Normal TSH range

0.4-4.5 mg/dL

TSH is inactivated by

Somatostatin secreted by the hypothalamus

What signals to make aldosterone

Low blood H2O

Low ECF

Low BP

Low Na

How Aldosterone is made

1. Renin is made by juxtaglomerular cells

2. Aldosterone is made by the adrenal cortex

What signals Parathyroid hormone

Low calcium

Calcitonin is made by

parafollicular cells