Ejection (or Let-Down) Process in Milk Secretion

Flashcards about the Ejection (or Let-Down) Process in Milk Secretion

What type of reflex is involved in the milk ejection process?

Neurogenic and hormonal reflex

Where is oxytocin synthesized?

Magnocellular nuclei of the hypothalamus

What effect does the hypothalamus have on prolactin release?

Decreased release of PIF, leading to increased prolactin

What effect does the hypothalamus have on FSH and LH release?

Decreased release of GnRH, leading to decreased FSH and LH

What hormone does the posterior pituitary release?

Oxytocin

What hormone does the anterior pituitary release?

Prolactin

What does prolactin stimulate?

Milk synthesis by mammary alveolar cells

What does oxytocin stimulate?

Contraction of the myoepithelial basket cells

What is the result of the contraction of myoepithelial basket cells?

Produces milk ejection

What effect does suckling have on the nipple?

Stimulates neural receptors in the nipple