- Regulating blood sugar
- When glucose (blood sugar) is too high, receptors in the body detect the change and send signals that cause the pancreas to react by secreting insulin, a hormone which lowers blood sugar levels by having the liver take in glucose and store it as glycogen. Alternately, if receptors sense that glucose is too low, it triggers the pancreas into releasing glucagon, a hormone that helps raise blood sugar level by making the liver break down stored glycogen and release it as glucose.
- Child birth
- The baby in the womb pushes against the cervix, causing it to stretch further. This stretching is sensed by the nerves, which send nerve impulses to the brain. The brain then stimulates the pituitary gland to release oxytocin, which causes the uterus to contract, helping the mother push. This hormone release, contraction, and pushing continue until the baby is conceived.
- Blood clotting
- If a vessel is damaged, blood platelets will cling to the injured area while also releasing chemicals to attract more platelets. They will continue to pile up on each other and continue to release chemicals until a blood clot is formed and the tear is sealed/no longer completely open.