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Anterior pituitary (Adenohypophysis) |
Posterior pituitary (Neurohypophysis) |
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Derived from Rathke's pouch (oral ectoderm). |
Derived from the hypothalamus (neural tissue). |
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Regulated by hypothalamic releasing hormones. |
Directly connected to the hypothalamus. |
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Synthesizes and secretes hormones. |
Stores and releases hormones. |
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Acidophils (Stain with acidic dyes e.g. eosin – pink/red) • GH • PRL
Mnemonic: GAP
Basophils (Stain with basic dyes e.g. hematoxylin – blue/purple) • TSH • ACTH • FSH • LH |
• Oxytocin |
• Growth Hormone (GH)
• Prolactin (PRL)
• Thyroid-Stimulating Hormone (TSH)
• Adrenocorticotropic Hormone (ACTH)
• Follicle-Stimulating Hormone (FSH)
• Luteinizing Hormone (LH)
• Antidiuretic Hormone (ADH)