Peripheral Glands.

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Presentation transcript:

Peripheral Glands

Exophthalmos of Grave’s disease Enlarged thyroid (goiter) from iodine deficiency

Increases Ca2 uptake in intestines Active vitamin D Figure 45.20-2 Increases Ca2 uptake in intestines Active vitamin D Stimulates Ca2 uptake in kidneys PTH Parathyroid gland (behind thyroid) Stimulates Ca2 release from bones Figure 45.20 The roles of parathyroid hormone (PTH) in regulating blood calcium levels in mammals. STIMULUS: Falling blood Ca2 level Blood Ca2 level rises. Homeostasis: Blood Ca2 level (about 10 mg/100 mL)