EXAM 1- Endocrine System

What dies the hypothalamus do in endocrine regulation?

• links the nervous & endocrine systems

• Regulates the pituitary

What does the pituitary gland do?

• releases hormones that regulate growth

• Reproduction

• Water balance

• Thyroid function

• Adrenal function

What hormones are produced by the thyroid gland?

• T3/T4–which increase metabolic activity

• Calcitonin— which helps lower blood Ca2+

What does the parathyroid hormone (PTH) do?

• raises blood Ca2+ lvls

What hormones are produced by the adrenal cortex?

• cortisol

• Aldosterone

• Adrenal androgens

What does cortisol do?

• helps regulate metabolism & supports the body’s response to stress

What does aldosterone do?

• promotes Na+ retention & K+ secretion, helping blood volume & pressure

What hormones are produced by the adrenal medulla?

• epinephrine

• norepinephrine

What does insulin do?

• lowers blood glucose by promoting glucose uptake & storage

What does glucagon do?

• raises blood glucose by promoting glucose production/release

What does ADH do?

• promotes water reabsorption by the kidneys

What does oxytocin do?

• promotes uterine contractions

• Promotes milk ejection

What hormones are produced by the ovaries?

• estorgen

• Progesterone

What hormones are produced by the testes?

• testosterone

• Inhibin