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7 Cards in this Set
- Front
- Back
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What is the function of thyroxin? (3) |
Thyroxin is responsible for the regulation of metabolism, body heat production & oxygen consumption in the mitochondria. |
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What is the function of calcitonin? (2) |
Calcitonin is responsible for the build up of bone by stimulating the bones to absorb calcium & phosphates from the blood. Excess blood calciums are also excreted through the action of calcitonin on the kidneys. |
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What is the function of the Parathyroid hormone? |
The Parathyroid Hormone is only released by the parathyroid. This hormone is responsible for the breakdown of bones in a simple way. Bones act as a storage site for blood calcium. If blood calcium becomes too low, you loose the ability to clot blood, operate muscles and nervous tissue. |
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What is goitre? |
Goitre (a thyroxin disorder) is an overactive thyroid but no secretion of thyroxin occurs. (thyroid glands swells to grapefruit size.) |
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What is diabetes mellitus? (3) |
1. Lack of Insulin 2. Produce urine with sugar (as kidneys are unable to reabsorb all the sugar) 3. High glucose concentration draws water from nephron by osmosis (large volumes of urine, often thirsty) |
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What is diabetes incipidus? (3) |
1. Nothing to do with the pancreas! 2. Lack of ADH causes you to lose lots of water (high urine volume & constant thirst) 3. Treatment = take an antibiotic drug |
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Where does Water Homeostasis occur? Name the gland, hormone, target and functions. |
Gland: PPG (posterior pituitary) Hormone: ADH (antidiuretic hormone) Target: Kidney Tubules Functions: Released 24/7 at various rates, allows the kidney to pull water back into the blood stream and reduces urine output. |
