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8 Cards in this Set
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- Back
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What is the neurohypophysis and what structures is it composed of?
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Posterior pituitary
Composed of: - Pars nervosa - Infundibulum |
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What is the adenohypophysis and what structures is it composed of?
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Anterior pituitary
Composed of: - Pars distalis - Pars tuberalis - Pars intermedia |
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What are the embryological origins of the neurophypophysis and adenohypophysis?
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Neurohypophysis: diencephalonic neuroectoderm
Adenohypophysis: oropharyngeal ectoderm |
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What is the sequence of blood vessels that communicate hypothalamic regulatory factors to the anterior pituitary?
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1. Internal carotid artery
2. Superior hypophyseal artery 3. Primary capillary network 4. Hypophyseal portal veins 5. Secondary capillary plexus |
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What is the major hormone secreting cell in the anterior pituitary?
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Somatotrophs
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What are Herring bodies?
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Packets of stored hormonal secretory vesicles in the axons of the magnocellular hypothalamic neurons that synapse on the posterior pituitary
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What hormones are released by posterior pituitary neuroendocrine cells?
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Vasopressin
Oxytocin |
