A femoral hernia occurs when the intestine enters the canal carrying the femoral artery into the upper thigh. Femoral hernias are most common in women, especially those who are pregnant or obese. In an umbilical hernia, part of the small intestine passes through the abdominal wall near the navel.
Parathyroid hormone is the most important endocrine regulator of calcium and phosphorus concentration in extracellular fluid. This hormone is secreted from cells of the parathyroid glands and finds its major target cells in bone and kidney.
>secreted by the parathyroid cells of the parathyroid gland. Function: PTH increases blood calcium levels (Ca^+2) by stimulating 3 target organs. 1)bone: stimulates osteoclasts to break down bone matrix, releasing calcium ions into the blood. 2)kidneys: causes increased reabsorption of Ca^+2 back into the blood.