課程信息
4.9
7 個評分
2 個審閱
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初級

初級

完成時間(小時)

完成時間大約為35 小時

建議:8 weeks of study; 4–5 hours/week...
可選語言

英語(English)

字幕:英語(English)...
100% online

100% online

立即開始,按照自己的計劃學習。
可靈活調整截止日期

可靈活調整截止日期

根據您的日程表重置截止日期。
初級

初級

完成時間(小時)

完成時間大約為35 小時

建議:8 weeks of study; 4–5 hours/week...
可選語言

英語(English)

字幕:英語(English)...

教學大綱 - 您將從這門課程中學到什麼

1
完成時間(小時)
完成時間為 1 小時

Course Orientation

The series of videos and readings provided here are aimed at introducing this course in Lactation Biology. Course organization is described. Requirements for participation in the course are summarized. And, opportunities for learners to engage in the course content, as well as with each other, are indicated. ...
Reading
2 個視頻(共 10 分鐘), 5 個閱讀材料, 2 個測驗
Video2 個視頻
Lactation Word Cloud2分鐘
Reading5 個閱讀材料
Course Syllabus10分鐘
About the Discussion Forums1分鐘
Social Media5分鐘
Updating Your Profile5分鐘
Study Aid Activities Overview5分鐘
Quiz2 個練習
Orientation Quiz5分鐘
Demographics Survey26分鐘
完成時間(小時)
完成時間為 1 小時

Module 1: Introduction to Lactation Biology

In this module, we will introduce some basic definitions of terms related to the biology of lactation, provide an overview of milk, and briefly introduce the phylogenetic organization and evolution of mammals. Learning the definitions will be important for establishing a baseline vocabulary that will help reduce confusion about topics presented in subsequent videos. Milk, a primary product of the lactation process, will be introduced in an effort to provide a foundation for later modules in which milk and milk composition are explored in greater depth. The series of videos about mammals collectively offer a brief overview of the wide spectrum of these animal species, as well as some thoughts on how lactation came to be an integral part of the reproductive strategy of those species....
Reading
8 個視頻(共 58 分鐘), 2 個閱讀材料, 2 個測驗
Video8 個視頻
Definitions Part 27分鐘
An Overview of Milk5分鐘
How Much Milk?4分鐘
Milk Products6分鐘
Mammals10分鐘
Mammalian Evolution5分鐘
Why Lactate?9分鐘
Reading2 個閱讀材料
Module 1 Overview5分鐘
Optional: Study Aids5分鐘
Quiz2 個練習
Lesson 1-1 Quiz10分鐘
Lesson 1-3 Quiz10分鐘
完成時間(小時)
完成時間為 4 小時

Module 2: Mammary Gland Structure

One of the most fundamental requirements for understanding any aspect of biology is to appreciate the relationships that exist between form and function, or anatomy and physiology. In the case of lactation and the mammary gland, it is important to be able to visualize the various levels of mammary gland structure in order to understand how the mammary gland grows and functions. This module presents an overview of mammary gland anatomy and macrostructure using the dairy cow as our primary example. In addition, the tissue, cellular, and subcellular levels of mammary structure are presented. The module provides a conceptual foundation that will allow you to individually explore mammary gland anatomy and microstructure in other mammalian species. ...
Reading
19 個視頻(共 130 分鐘), 2 個閱讀材料, 5 個測驗
Video19 個視頻
Mammary Lobes6分鐘
Simple vs Complex Glands4分鐘
Mammary Anatomy at the Cow Side10分鐘
Mammary Suspensory System9分鐘
Median Suspensory Ligament2分鐘
Structure of Teats and Cisterns6分鐘
Supernumerary Teats4分鐘
Mammary Blood System10分鐘
Mammary Lymph System6分鐘
Mammary Nervous System3分鐘
Introduction to Mammary Microstructure6分鐘
Microstructure - 2D and 3D8分鐘
Lobules5分鐘
More on Lobules9分鐘
Alveoli and Their Environment7分鐘
Myoepithelial Cells5分鐘
Mammary Cell Ultrastructure Part 18分鐘
Mammary Cell Ultrastructure Part 25分鐘
Reading2 個閱讀材料
Module 2 Overview5分鐘
Optional: Study Aids5分鐘
Quiz5 個練習
Lesson 2-1 Quiz10分鐘
Lesson 2-2 Quiz12分鐘
Lesson 2-3 Quiz10分鐘
Lesson 2-4 Quiz10分鐘
Week 1 Quiz30分鐘
2
完成時間(小時)
完成時間為 5 小時

Module 3: Milk Composition

Milk is the product of the lactation process. Such a simple statement does not come close to doing justice to the complex nature of this biological fluid. In this module, we explore the major components of milk, as well as provide a basis for understanding milk as a product that we purchase in a store. Mechanisms of synthesis of milk components are introduced. And, several videos include discussions of the nature of differences in milk composition among mammalian species, including comparisons of cow milk with human milk....
Reading
27 個視頻(共 178 分鐘), 2 個閱讀材料, 7 個測驗
Video27 個視頻
Milk Components Demo2分鐘
Perspectives on Milk Composition7分鐘
Milk Under the Microscope5分鐘
Major Milk Fractions5分鐘
From Cow to Store10分鐘
Total Solids4分鐘
Lactose7分鐘
Lactose Intolerance4分鐘
Lactose Synthesis8分鐘
Milk Protein4分鐘
Casein8分鐘
Casein Demo5分鐘
Whey Proteins9分鐘
Milk Protein Synthesis8分鐘
Milk Fat4分鐘
Fatty Acids6分鐘
Milk Fat - Species Comparisons5分鐘
Milk Fat Synthesis15分鐘
Milk Minerals10分鐘
Milk Vitamins2分鐘
Cells in Milk6分鐘
More on Milk Cells1分鐘
Milk Bioactive Factors8分鐘
Species Comparisons of Milk7分鐘
Cow vs. Human Milk Composition5分鐘
Wrapping Up Milk Composition4分鐘
Reading2 個閱讀材料
Module 3 Overview5分鐘
Optional: Study Aid5分鐘
Quiz7 個練習
Lesson 3-1 Quiz10分鐘
Lesson 3-2 Quiz10分鐘
Lesson 3-3 Quiz10分鐘
Lesson 3-4 Quiz10分鐘
Lesson 3-5 Quiz10分鐘
Lesson 3-6 Quiz10分鐘
Week 2 Quiz30分鐘
3
完成時間(小時)
完成時間為 3 小時

Module 4: Mammary Gland Development

The tissue that we know of as the mammary gland (or udder or breast) may appear as relatively uncomplicated compared with some internal organs such as the heart or brain. The gland is outside the body wall, has a nipple or teat in most species, and has a series of ducts by which milk that is produced in microscopic blind tubes can be expressed from the gland. How can such a gland develop and what regulates that development? It turns out that the initial stage of development occurs extremely early in the fetal development of the animal. It then proceeds through a series of developmental phases, many of which are closely linked with the reproductive functioning of the animal, and eventually leading to the time when the gland is producing milk. Furthermore, the mammary gland is one of a few tissues that undergoes repeated cycles of development, functioning, regression, and redevelopment, again associated with the reproductive cycles of the animal. This module describes the various stages of mammary development and provides the framework for understanding how these stages relate to each other, as well as to the functionality of the gland....
Reading
11 個視頻(共 79 分鐘), 2 個閱讀材料, 4 個測驗
Video11 個視頻
Fetal Stage - 26分鐘
Fetal Stage - 36分鐘
Prepubertal Stage - 17分鐘
Prepubertal Stage - 23分鐘
Postpubertal Stage7分鐘
Development During Pregnancy - 12分鐘
Development During Pregnancy - 26分鐘
Development During Pregnancy - 35分鐘
Lactation7分鐘
Bovine Mammary Development13分鐘
Reading2 個閱讀材料
Module 4 Overview5分鐘
Optional: Study Aid5分鐘
Quiz4 個練習
Lesson 4-1 Quiz10分鐘
Lesson 4-2 Quiz10分鐘
Lesson 4-3 Quiz10分鐘
Week 3 Quiz30分鐘
4
完成時間(小時)
完成時間為 5 小時

Module 5: Mother & Neonate

The peripartum period, the time shortly before, during, and after giving birth, is a time of rapid changes in the mammary gland, the mother, and the neonate. Extensive physiological coordination occurs between the processes leading up to and giving birth, the formation of colostrum, the initiation of lactation in the mammary gland, and the subsequent removal of milk by the neonate. In this module, we explore how the mammary gland changes around the time of giving birth when the gland transitions from a non-lactating to a lactating state. Part of this transition is the production of colostrum, the first mammary secretion produced by the gland after giving birth. Another part of the transition is the changing regulation of mammary gland function from one being driven primarily by hormones associated with pregnancy and parturition to one where milk removal, by the neonate or milking machine, is the driving force in gland function after birth. In this module, we examine some basic characteristics of the neonate, how lactation is initiated (lactogenesis), and the formation and special components of colostrum (immunoglobulins) and their impact on the neonate....
Reading
17 個視頻(共 124 分鐘), 2 個閱讀材料, 7 個測驗
Video17 個視頻
A Cow Calving3分鐘
The Neonate8分鐘
Lactogenesis & Its Stages7分鐘
Secretory Differentiation8分鐘
Secretory Activation & Lactose Synthesis7分鐘
Hormonal Regulation5分鐘
Comparative Hormonal Regulation7分鐘
Prolactin - Sources4分鐘
Prolactin - Control of Secretion5分鐘
Prolactin - Other Regulation5分鐘
Colostrum Composition12分鐘
Immunoglobulins in Colostrum6分鐘
Colostrum & the Neonate10分鐘
Immunoglobulin Receptor6分鐘
Mammary Transport of Immunoglobulin7分鐘
Immunoglobulin Transport to the Neonate6分鐘
Reading2 個閱讀材料
Module 5 Overview5分鐘
Optional: Study Aid5分鐘
Quiz6 個練習
Lesson 5-1 Quiz10分鐘
Lesson 5-2 Quiz10分鐘
Lesson 5-3 Quiz10分鐘
Lesson 5-4 Quiz10分鐘
Lesson 5-5 Quiz10分鐘
Week 4 Quiz30分鐘

講師

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Dr. Walter Hurley, PhD

Professor Emeritus
Department of Animal Sciences

關於 University of Illinois at Urbana-Champaign

The University of Illinois at Urbana-Champaign is a world leader in research, teaching and public engagement, distinguished by the breadth of its programs, broad academic excellence, and internationally renowned faculty and alumni. Illinois serves the world by creating knowledge, preparing students for lives of impact, and finding solutions to critical societal needs. ...

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