Parathyroid glands are small endocrine glands in the neck of humans and other tetrapods. Humans usually have four parathyroid glands, located on the back of the thyroid gland in variable locations. The parathyroid gland produces and secretes parathyroid hormone in response to a low blood calcium, which plays a key role in regulating the amount of calcium in the blood and within the bones. Parathyroid glands share a similar blood supply, venous drainage, and lymphatic drainage to the thyroid glands. Parathyroid glands are derived from the epithelial lining of the third and fourth pharyngeal pouches , with the superior glands arising from the fourth pouch and the inferior glands arising from the higher third pouch.
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Shi Tsuki. No Downloads. Views Total views. Actions Shares. Embeds 0 No embeds. No notes for slide. E1 Acortamiento del intervalo QT 2. E1 Membrana basolateral E1 Progeria Parafoliculares o C. Hipoparatiroidismo E1 Es una enfermedad infrecuente de origen autoinmune la cual se manifiesta en la infancia , en algunos pacientes puede coexistir con otros trastornos como la tiroiditis de Hashimoto y la enfermedad de Addison.
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Parathyroid Glands: Facts, Function & Disease
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Extirpación de las glándulas paratiroideas
Though they are small, the parathyroid glands are big players in the endocrine system. They have a very important purpose: keeping bones strong, the nervous system running and the muscles pumping. The parathyroids are four mustard-colored glands that function as one. They are located behind the thyroid, which is a gland that stretches across the front of the neck, below the voice box.