Podcast
Questions and Answers
Which hormone released during breastfeeding helps the uterus return to its pre-pregnancy size?
Which hormone released during breastfeeding helps the uterus return to its pre-pregnancy size?
- Prolactin
- Estrogen
- Oxytocin (correct)
- Progesterone
Breastfeeding increases the risk of type 2 diabetes for the mother.
Breastfeeding increases the risk of type 2 diabetes for the mother.
False (B)
What is the primary immune-boosting component found in breast milk that helps prevent pathogens in babies?
What is the primary immune-boosting component found in breast milk that helps prevent pathogens in babies?
Immunoglobulins (IgA)
The mammary gland's 'milk letdown' function is facilitated by __________ cells in response to oxytocin.
The mammary gland's 'milk letdown' function is facilitated by __________ cells in response to oxytocin.
What is the role of prolactin in lactation?
What is the role of prolactin in lactation?
Montgomery glands are responsible for milk storage before release.
Montgomery glands are responsible for milk storage before release.
What specific type of tissue increases in the mammary glands during pregnancy to support lactation?
What specific type of tissue increases in the mammary glands during pregnancy to support lactation?
The hormone __________ promotes the formation of milk ducts in the breasts.
The hormone __________ promotes the formation of milk ducts in the breasts.
Match the structure with its primary function in lactation and milk production:
Match the structure with its primary function in lactation and milk production:
What is the primary function of the pituitary gland in relation to lactation?
What is the primary function of the pituitary gland in relation to lactation?
Flashcards
Oxytocin
Oxytocin
Hormone released during breastfeeding; reduces stress by lowering cortisol.
Lactiferous ducts and sinus
Lactiferous ducts and sinus
Large ducts carrying milk from alveoli to the nipple; act as 'milk highways'.
Mammary lobes and lobules
Mammary lobes and lobules
Clusters of alveoli within the mammary gland.
Alveoli
Alveoli
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Secretory epithelial cells
Secretory epithelial cells
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Myoepithelial cells
Myoepithelial cells
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Pituitary gland
Pituitary gland
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Prolactin
Prolactin
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Oxytocin effect on uterus
Oxytocin effect on uterus
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Progesterone
Progesterone
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Study Notes
- Physiological recovery involves breastfeeding releasing oxytocin and prolactin.
- Oxytocin reduces stress by lowering cortisol.
- Prolactin also reduces stress by lowering cortisol.
- Breastfeeding lowers the risk of postpartum hemorrhage.
- Oxytocin release causes the uterus to contract, helping it return to its pre-pregnancy size.
- Breastfeeding helps with psychological attachment.
- Decrease disease risk through prolactin and oxytocin, and lowers the risk of hypertension and cardiovascular disease through lowering inflammation.
- Improves glucose regulation by increasing insulin sensitivity, lowering the risk of type 2 diabetes.
- Bioavailable nutrients are more available to baby.
- Breastfeeding allows lower costs for the parents.
- Milk is free from bacteria because it comes straight from the mother's body, versus coming from a bottle.
- Breastfeeding results in immune boosting components - immunoglobulins (IgA) - prevents pathogens.
- Breastfeeding is least allergenic because it decreases asthma.
- Breastfeeding reduces many death risks like SIDS (sudden infant death syndrome).
- Better autonomic control of breathing.
- Jaw and tooth development has to work harder.
- Nipple has multiple pores for breast milk to come out of and reaches to the back of the baby's mouth.
- Areola is the pigment area behind the nipple.
- Montgomery glands are bumps on the areola and nipple that provide lubrication.
- Lactiferous ducts and sinus are large ducts carrying milk
- Milk highway
- Milk collects here, before going out.
- Ducts transport milk.
- Sinus is a storage area where milk collects before being released
- Mammary lobes and lobules are clusters of alveoli.
- Alveoli are small grape-sized structures within the lobus.
- Secretory epithelial cells line alveoli and make milk.
- Myoepithelial cells are outside alveoli and have a "milk letdown" function in response to oxytocin.
- Mammary gland development in infants begins in infancy and childhood.
- "Witch's milk" is a rare clear secretion.
- Mammary gland development in puberty: breast growth completes 12-18 months after first menses.
- Includes duct elongation and branching + adipose tissue.
- Mammary glands during pregnancy result in breast changes to support lactation.
- More blood supply
- Increased ductus
- Increased Alveoli size
- Pituitary gland controls the lactation hormones through prolactin and oxytocin.
- Prolactin stimulates milk production.
- Oxytocin triggers milk ejection/let-down reflex.
- Progesterone promotes alveoli formation + branching.
- Estrogen promotes formation of milk ducts in breasts.
- Prolactin stimulates milk production.
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