Title: Milk Let-down
Description: (1)Teat suckling (by calf or milking parlor preparation) sends nerve impulses to the brain’s hypothalamus(2) and on to the pituitary(3). The pituitary gland secrets oxytocin into the blood stream, which carries it to udder alveoli(4). Udder alveoli contract to let down milk.
Yellow arrows = nervous system pathway
Green arrows = circulatory system pathway
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