Which of the following is not one of the effects of the parathyroid hormone (PTH)?
increased calcium absorption in the small intestine
increased blood calcium concentration
increased calcium reabsorption in the kidneys
increased calcium storage in bones

Parathyroid hormone (PTH) is a key player in calcium homeostasis and actually triggers the release of calcium from the bone into the bloodstream, rather than increasing calcium storage in bones. It typically acts to raise blood calcium levels through various mechanisms, making it essential for maintaining the balance required for physiological functions.

While PTH works diligently to keep blood calcium levels up, it’s also important to note that sustained high levels can lead to issues like hypercalcemia. This emphasizes the crucial need for balance—too much calcium can be just as troublesome as too little! Always remember, when it comes to hormones and minerals, moderation is key!