1. A breastfeeding mother produces oxytocin and prolactin, which stimulate milk production. The action of her baby nursing at the mother’s breast stimulates the production of more oxytocin and prolactin, which stimulate more milk production. __________
2. When blood glucose rises, the pancreas releases insulin; when blood glucose concentration falls, the pancreas stops releasing insulin.__________
3. The adrenal gland produces adrenaline in response to a threatening situation. Adrenaline increases alertness and sends energy to muscles to prepare to fight or run away from danger. When the danger is averted, the adrenal gland stops producing adrenaline.__________
4. Wounded skin and blood cells send out chemical signals that increase the flow of blood, which causes swelling in the area. This sends out more signals that increase the flow of blood and blood products to the area, which increase the chemical signals.__________