Chapter12 Lactation Teachering Hours 2 hours Intensive Teaching:The formation and regulation ofmilk Nodi for student:Milk formation;process of milk secretion;regulation of milk secretion Seactionl The structure of breast Include:(1)acinus (2)Lactiferous duct Seaction2 Development and it's regulation of breast 1 development of breast (1)Before puberty:Adipose tissue and connective tissue were welldeveloped (2)Complete puberty:breast developed (3)gestation:the acinus and lactiferous duct weredeveloped. 2 The regulation of breast development (1)Hormonalregulation i)development oflactiferous duct:role of the estrogens. ii)development ofacinus:Progesterone is pivotal,but also with other hormones just estrogens,groth hormone,prolactinand adrenocortical hormone. (2)Regulation by nerve:promoted the development ofbreast. (3)The quantity of sex hormone receptor in mammary glandular cell and its sensibility to sex hormone. (4)Heredity
Chapter12 Lactation Teachering Hours :2 hours Intensive Teaching:The formation and regulation of milk Nodi for student:Milk formation; process of milk secretion; regulation of milk secretion Seaction1 The structure of breast Include: (1) acinus (2) Lactiferous duct Seaction2 Development and it’s regulation of breast 1 development of breast (1) Before puberty: Adipose tissue and connective tissue were welldeveloped (2) Complete puberty: breast developed (3) gestation: the acinus and lactiferous duct were developed. 2 The regulation of breast development (1) Hormonal regulation i)development of lactiferous duct: role of the estrogens. ii)development of acinus:Progesterone is pivotal,but also with other hormones just estrogens,groth hormone,prolactin and adrenocortical hormone. (2)Regulation by nerve: promoted the development of breast. (3) The quantity of sex hormone receptor in mammary glandular cell and its sensibility to sex hormone. (4)Heredity
Seaction3 Milk formation and secretion 1 Milk (1)Colostrums:The milks secreted in 3~5days ofantepartum and post partum The functions ofcolostrums: i)offered plasma proteins i))offered antibody iii)offered Fe2+,Mg2+ iv)offered VitA.VitC.VitD (2)general milks: 2.The formation process of milk Formation placement:acinus Material:from blood Essential component:lactoprotein;lactose;butter fat 3.Milk secretion (1butter fat secretion (2)lactoprotein secretion (3)lactose secretion (4)secretion ofNa+and K+ 4.Regulation of milk secretion (1)Initiation oflactation prolactin,GH,adrenocortical hormone (2)maintenance oflactation
Seaction3 Milk formation and secretion 1 Milk (1) Colostrums: Themilks secreted in 3~5days of antepartum and post partum The functions of colostrums: i)offered plasma proteins ii) offered antibody iii) offered Fe2+, Mg2+ iv) offered VitA, VitC,VitD (2) general milks: 2. The formation process of milk Formation placement : acinus Material: from blood Essential component: lactoprotein; lactose; butter fat 3. Milk secretion (1)butter fat secretion (2) lactoprotein secretion (3)lactose secretion (4)secretion of Na+ and K+ 4.Regulation of milk secretion (1) Initiation of lactation prolactin, GH, adrenocortical hormone (2) maintenance of lactation
Thyroxine;prolactin;GH;adrenocortical hormone Seaction4 Milk Ejection 1 cumulation of milk (1 milk is stored in acinus,lactiferous duct and cistern (2)The milk secretion would be restrained when the inner pressure of breast increased 2 the process of milk ejection 3.The neural-humoral regulation of milk ejection
Thyroxine; prolactin; GH; adrenocortical hormone Seaction4 Milk Ejection 1 cumulation of milk (1)milk is stored in acinus, lactiferous duct and cistern (2)The milk secretion would be restrained when the inner pressure of breast increased 2 the process of milk ejection 3. The neural-humoral regulation of milk ejection