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Explain the hormonal control of lactation:

Explain the hormonal control of lactation:

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Explain the hormonal control of lactation: (a) Mammary glands (b) The hormonal control of milk secretion and release Epithelial cells of the mammary glands secrete milk into the ducts of the gland. Contraction of the myoepithelium forces fluid out of the ducts through openings in the nipple. Prolactin controls milk secretion, and oxytocin causes smooth muscle contraction to eject milk. Sound of child's cry Higher brain centers Pectoralis major muscle Pectoral fat pad Hypothalamus Suspensory ligaments O PIH cell. Lobes of glandular tissue Oxytocin neuron Milk duct - Nipple Portal system Areola PIH Anterior pituitary Posterior pituitary Inhibition of prolactin cells is removed. A Prolactin A Oxytocin Mammary gland lobule Milk secretion Smooth muscle contraction Milk ejected -Milk duct - Muscle cells in wall of duct Epithelial milk-secreting cells Baby suckling Mechanoreceptors in nipple Myoepithelial cells Mammary gland alveolus Ascending sensory information
Transcribed Image Text:Explain the hormonal control of lactation: (a) Mammary glands (b) The hormonal control of milk secretion and release Epithelial cells of the mammary glands secrete milk into the ducts of the gland. Contraction of the myoepithelium forces fluid out of the ducts through openings in the nipple. Prolactin controls milk secretion, and oxytocin causes smooth muscle contraction to eject milk. Sound of child's cry Higher brain centers Pectoralis major muscle Pectoral fat pad Hypothalamus Suspensory ligaments O PIH cell. Lobes of glandular tissue Oxytocin neuron Milk duct - Nipple Portal system Areola PIH Anterior pituitary Posterior pituitary Inhibition of prolactin cells is removed. A Prolactin A Oxytocin Mammary gland lobule Milk secretion Smooth muscle contraction Milk ejected -Milk duct - Muscle cells in wall of duct Epithelial milk-secreting cells Baby suckling Mechanoreceptors in nipple Myoepithelial cells Mammary gland alveolus Ascending sensory information
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