Term
| What are the two mechanisms that evolved to integrate the functions of organs and tissues? |
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Definition
| The nervous system and the endocrine system. |
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Term
| What do endocrine glands secrete? |
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Definition
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Term
| What are the two classes of hormones? |
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Definition
| peptide hormones and steroid hormones. |
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Term
| What organelle synthesizes peptide hormones? |
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Definition
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Term
| What cellular organelle produces steroid hormones? |
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Definition
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Term
| Where do peptide hormones bind? |
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Definition
| surface receptors. These are stored in granules. |
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Term
| Where do steroid hormones bind? |
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Definition
| Directly in the cell. These are not stored in cells. They are made and released on demand. |
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Term
| What are some of the endocrine organs? |
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Definition
| hypophysis, adrenals, thyroid, parathyroid, pineal, gonads, and islet of the pancreas. Also adipose tissue helps and scattered APUD cells in the intestine, kidney, and liver |
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Term
| What role does the hypophysis play in regulating organs? |
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Definition
| It is the major link between the CNS and the endocrine system. Responsible for the integration of the neuroendocrine system. All products are peptides! |
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Term
| What links the neurohyphosis to the brain stem? |
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Definition
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Term
| Where is the hypophysis located? |
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Definition
| Sits in the sella turcica of the sphenoid bone. |
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Term
| What are the two main divisions of the hypophysis? |
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Definition
| The adenohypophysis and the neurohypophysis |
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Term
| What are the divisions of the adenohypophysis? |
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Definition
| Pars distalis, pars intermedia, and pars tuberalis. |
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Term
| What are the divisions of the neurohypophysis? |
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Definition
| Infundibulum or neural stalk and the pars nervosa. |
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Term
| Where does the hypophysis develop from? |
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Definition
| The adenohypophysis is from Rathke's pouch and is made of ectoderm of the roof of the oral cavity. The Neurohypophysis is an downgrowth from the floor of the diencephelon. |
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Term
| Where does the hypophysis develop from? |
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Definition
| The adenohypophysis is from Rathke's pouch and is made of ectoderm of the roof of the oral cavity. The Neurohypophysis is an downgrowth from the floor of the diencephelon. |
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