Lactation - - frequent lactation can inhibit ovulation (by...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Lactation : production of milk by hormone-prepared mammary glands - rising levels of placental hormones stimulate hypothalamus to release prolactinreleasing hormone (PRH) - PRH stimulates anterior pituitary to release prolactin - after 2-3 days, milk production begins o colostrum first few days after birth & can substitute until milk is produced - milk produced by glandular cells is stored until the baby begins suckling - suckling (& other stimuli, such as baby’s cry) stimulates oxytocin release from the posterior pituitary - oxytocin causes release of milk into mammary ducts via milk ejection reflex - suckling also inhibits release of prolactin-inhibiting hormone (PIH) from the hypothalamus, which increases PRH (& prolactin) release
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: - frequent lactation can inhibit ovulation (by inhibiting GnRH, FSH & LH release) during the first few months following childbirth- benefits of breast-feeding to newborn: o beneficial cells: white blood cells in milk help to fight infection o beneficial molecules: immunoglobulins (IgA), lysozyme & interferons also help fight infection; B 12-binding protein binds vitamin B 12 & lactoferrin binds iron, so that bacteria can’t use them for growth o decreased incidence of diseases later in life: studies show reduced incidence of several diseases that occur later in life in children that breast-fed o miscellaneous benefits: optimal growth & enhanced development, fosters motherinfant relationship, better sources of nutrients, etc… page4...
View Full Document

This note was uploaded on 12/04/2011 for the course ANTHRO 2000 taught by Professor Monicaoyola during the Fall '10 term at Broward College.

Ask a homework question - tutors are online