Some Endocrine Glands

Slide 1

SOME ENDOCRINE GLANDS

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Pineal Gland

Synthesizes Melatonin responsible for biological clock

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Thyroid Gland

For metabolism Thyroxine (T4) Triiothyronine (T3) Calcitonin

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Parathyroid Gland

Behind thyroid gland Generally found as 4 glands Secretes parathyroid hormone Essential for calcium and phosphate regulation

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Thymus

Inferior to thyroid gland Undergoes atrophy during adulthood Secretes thymosine

Slide 6

Heart

Secretes the hormone: Naturetic Peptide Decreases blood pressure

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Digestive Tract

Produces many hormones: Gastrin, Secretin Somatostatin, CKK, GIP, VIP, etc.

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Pancreas

Insulin to decrease blood pressure Glucagon to increase blood pressure

Diabetes Type I: depleted insulin levels Type II: low insulin levels High glucose levels

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Kidneys

Erythropoietin for RBC production in bone marrow Calcitriol

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Adrenal Glands

Adrenal Cortex Outer part Cortisol for stress Aldosterone for sodium reabsorption and potassium secretion in kidneys

Adrenal Medulla Middle part Adrenaline (epinephrine) Noradrenaline (norepinephrine) For fight-flight response

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Adipose Tissue

Secretes leptin Important for fat metobolism

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Gonads

Testis Androgens - testosterone Promotes male characteristics & sperm production

Ovaries Estrogen & Progestrone Female characteristics & egg production

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