Each alveolus is lined with an inner layer of

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

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: d with an inner layer of secretory epithelial cells that secrete milk. A lve o li – th e p rim a ry m a m m a ry s truc ture re s p o ns ib le fo r p ro d uc ing m ilk MAMMARY GLAND STRUCTURE MAMMARY (b) Ducts Drain the alveoli. Lined with ductal epithelial cells. (c) Lobules Composed of multiple alveoli, along with the finest of the ductal units. Mammary Gland Structure Mammary End Bud Alveoli Lobules Species Differences Species Pre­pubertal heifer (Capuco et al 2000) Pre­pubertal mouse (Ellis 1998) bovine ­ tightly packed ducts murine ­ widely spaced elongated ducts MAMMARY GLAND STRUCTURE MAMMARY (d) Gland cistern Ducts drain into it. (e) Teat cistern and streak canal Channel that exits to the exterior. They open to the exterior through opening (s) in the nipple. MAMMARY GLAND STRUCTURE MAMMARY GLAND STRUCTURE MAMMARY (f) Myoepithelial cells Cover the alveoli and the ducts Smooth muscle cells that contract to facilitate milk release, or milk let-down. Mammary Gland Alveolar-Lobule Structure STAGES OF MAMMARY GLAND DEVELOPMENT DEVELOPMENT (a) Prepubertal Some general isometric growth i.e. growing at the s...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern