NTR 313 Test 2 Flashcards
The Gold Standard
- Exclusive breastfeeding is ideal nutrition and sufficient to support optimal growth and development for approximately the first 6 months after birth
- Recommended that breastfeeding continue for at least 12 months and thereafter for as long as mutually desired.
Cognitive benefits
Studies show an increase in cognitive ability even after adjusting for family environment
Analgesic Benefits
Reduction of infant pain
Socioeconomic
Decreased need for medical care
Breastfeeding is FREE
What are at least 3 factors that determine the establishment and maintenance of lactation?
1) The structure of the mammary tissue and the adequate development of alveoli ducts and nipples
2) The initiation and maintenance of milk synthesis
3) the ejection of milk from the alveoli to the nipple
Lactogenesis
Term for human milk production
Prolactin
a hormone necessary for milk production
Mammary Gland
Source of milk for offspring the breast
Functional group of mammary glands: alveoli, rounded or oblong shaped cavity present in breasts
Alveoli
The functional units; lined by myoepithelial cells that contract during letdown causing milk ejection
Secretory Cells
Cells in milk gland that are responsible for secreting milk components into ducts
Oxytocin
Hormone produced during letdown that causes milk to eject into ducts
What are the two hormones that contribute to breast development and lactation?
prolactin and estrogen
Lactogenesis I
(Birth to 2-5 days), milk formation begins
Lactogensis II
(begins 2-5 days after birth) Increased blood flow to breast ; milk “comes in”
Lactogenesis III
(begins at about 10 days after birth) milk composition is stable
Prolactin
a hormones that stimulates milk production, it is released in response to suckling, sleep and sexual intercourse
Oxytocin
a hormone involved in lactation. Stimulates the letdown of milk. Tingling of the breast may occur corresponding to contraction in milk duct. Causes uterus to contract, seal blood vessels and shrink in size
What is the one food source newborns can receive everything they need for the first 6 months of their life?
human milk
What is one unique quality of human milk?
While the infant is feeding, it can change composition from being carbohydrates to lipids. The baby is signaled to stop feeding once it feels full. Milk can also change with diet and as the child gets older.
Colostrum
- secreted the first few days postpardum
- very high in protein such as secretory Immunoglobulin A and lactoferrin
- Newborns only need small amount
composition of human milk
- water
- 55% fat
- ~.65 kcal/mL
- calories may vary with fat, protein and carb comp.
- lower in calories than HMS
Lipids
- provide about half of the calories in human milk
- fatty acids reflect mother’s diet
- very low fat diet with adequate CHO & protein, milk is increased in medium-chain fatty acids
DHA (docosahexaenoic acid)
- essential for retinal development
- associated with higher IQ scores
Fatty Acids
provided through maternal diet