Breastmilk by Dr. Olavidez (PPT) Flashcards
(118 cards)
Each mammary gland forms a _____ of the breast which consists of a single major branch of alveoli and milk ducts that end at the nipple pore.
Lobe
The dark area around the nipple
Areola
Tube through which milk travels
Milk duct
Grape-like clusters of tissue that secrete milk
Alveoli cells
This causes the alveolar cells to secrete milk and swells the alveoli.
Prolactin reflex
Pathway:
- Nerve impulses from sucking go to brain
- The pituitary gland releases prolactin into the blood
- This causes the alveolar cells to secrete milk and swells the alveoli
This causes muscles around the alveoli in the breast to contract and squeeze the milk to the nipple.
The milk ejection/oxytocin reflex
Pathway:
- Nerve impulses from sucking go to the brain
- The pituitary gland releases oxytocin into the bloodstream
- This causes muscles around the alveoli in the breast to contract and squeeze the milk to the nipple.
Human milk is:
a. hypotonic
b. isotonic
c. hypertonic
Isotonic
- Milk and plasma are of similar ion concentration
- Milk is basically a suspension of fat and protein in carbohydrate mineral solution
Designed to protect infants against chronic childhood diseases
Human milk
Ratio:
- Breastmilk has T lymphocytes, B lymphocytes, neutrophils, macrophages and epithelial cells aid in protection
- IgA immunoglobulins
Two forms of breast milk:
- Colostrum
2. Mature milk
Volume of breast milk usually secreted ___________
600-900 mL/day
Thick yellow fluid
Colostrum
Colostrum is produced in the first ______ after birth.
2-4 days
Char-char: colos2rum = 2-4 days
Colostrum in human milk provides _____ cal/100 mL
58-70 cal/100 mL
High in protein, electrolytes, sodium, potassium, chloride and beta carotene
Colostrum
Low in fat and carbohydrate
Colostrum
Lactobacillus bifidus factor
Colostrum
Breast tissue development and secretion of colostrum and milk begins by 12th week of pregnancy and extends until shortly after delivery.
Lactogenesis I
Begins between the 2nd and 4th postpartum day and is characterized by the milk “coming in” in greater quanitity.
Lactogenesis II
7 to 10 days after delivery, milk is defined as __________
Transitional
14 days, milk is considered ________ has a volume of ________/24 hrs
Mature
600-900
Human milk is composed of ____ water.
87%
Human milk has _________ calories.
2,730-2,940 cal/L
Human milk is 98% triglycerides and mostly __________ and __________.
Palmitic and oleic acids
50% of TAG in human milk are in the form of ______.
DHA (Docosahexaenoic acid)