FSN 301 Lecture 10: nutrition class notes 9:26:17
2 Jan 2018
School
Department
Course
Professor
Document Summary
Lactiferous sinuses: oxytocin larger ducts for storage of milk behind the nipple. Hormone produced during letdown that causes milk to eject into ducts: mammary gland development- usually complete within 12 to 18 months after menarche. Prolactin stimulates milk production: oxytocin main role is let-down, or ejection of milk from the milk gland into the milk ducts and lactiferous sinus. Also acts on the uterus, causing it to contract, seal blood vessels and shrink in size. Stimuli are passed through nerves to the hypothalamus: release of oxytocin from posterior pituitary gland. Stimuli: infant suckling, crying, mom thinking about nursing. Thick, yellow fluid produced 1-3 days after birth: higher in protein, lower in cho and fat than mature milk, human milk is the only food needed by the majority of healthy infants for about 6 months. Infants may only drink 2-10 ml per feeding in the first 2-3 days. Allows suspension of milk sugars, proteins, na, k, ca, and water-soluble vitamins.
