Informações sobre o curso
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Nível iniciante

Horas para completar

Aprox. 34 horas para completar

Sugerido: 8 weeks of study; 4–5 hours/week...
Idiomas disponíveis

Inglês

Legendas: Inglês
100% online

100% online

Comece imediatamente e aprenda em seu próprio cronograma.
Prazos flexíveis

Prazos flexíveis

Redefinir os prazos de acordo com sua programação.
Nível iniciante

Nível iniciante

Horas para completar

Aprox. 34 horas para completar

Sugerido: 8 weeks of study; 4–5 hours/week...
Idiomas disponíveis

Inglês

Legendas: Inglês

Programa - O que você aprenderá com este curso

Semana
1
Horas para completar
1 hora para concluir

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 vídeos (total de (Total 10 mín.) min), 5 leituras, 2 testes
Video2 videos
Lactation Word Cloud2min
Reading5 leituras
Course Syllabus10min
About the Discussion Forums1min
Social Media5min
Updating Your Profile5min
Study Aid Activities Overview5min
Quiz2 exercícios práticos
Orientation Quiz5min
Demographics Survey26min
Horas para completar
1 hora para concluir

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 vídeos (total de (Total 58 mín.) min), 2 leituras, 2 testes
Video8 videos
Definitions Part 27min
An Overview of Milk5min
How Much Milk?4min
Milk Products6min
Mammals10min
Mammalian Evolution5min
Why Lactate?9min
Reading2 leituras
Module 1 Overview5min
Optional: Study Aids5min
Quiz2 exercícios práticos
Lesson 1-1 Quiz10min
Lesson 1-3 Quiz10min
Horas para completar
4 horas para concluir

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 vídeos (total de (Total 130 mín.) min), 2 leituras, 5 testes
Video19 videos
Mammary Lobes6min
Simple vs Complex Glands4min
Mammary Anatomy at the Cow Side10min
Mammary Suspensory System9min
Median Suspensory Ligament2min
Structure of Teats and Cisterns6min
Supernumerary Teats4min
Mammary Blood System10min
Mammary Lymph System6min
Mammary Nervous System3min
Introduction to Mammary Microstructure6min
Microstructure - 2D and 3D8min
Lobules5min
More on Lobules9min
Alveoli and Their Environment7min
Myoepithelial Cells5min
Mammary Cell Ultrastructure Part 18min
Mammary Cell Ultrastructure Part 25min
Reading2 leituras
Module 2 Overview5min
Optional: Study Aids5min
Quiz5 exercícios práticos
Lesson 2-1 Quiz10min
Lesson 2-2 Quiz12min
Lesson 2-3 Quiz10min
Lesson 2-4 Quiz10min
Week 1 Quiz30min
Semana
2
Horas para completar
5 horas para concluir

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 vídeos (total de (Total 178 mín.) min), 2 leituras, 7 testes
Video27 videos
Milk Components Demo2min
Perspectives on Milk Composition7min
Milk Under the Microscope5min
Major Milk Fractions5min
From Cow to Store10min
Total Solids4min
Lactose7min
Lactose Intolerance4min
Lactose Synthesis8min
Milk Protein4min
Casein8min
Casein Demo5min
Whey Proteins9min
Milk Protein Synthesis8min
Milk Fat4min
Fatty Acids6min
Milk Fat - Species Comparisons5min
Milk Fat Synthesis15min
Milk Minerals10min
Milk Vitamins2min
Cells in Milk6min
More on Milk Cells1min
Milk Bioactive Factors8min
Species Comparisons of Milk7min
Cow vs. Human Milk Composition5min
Wrapping Up Milk Composition4min
Reading2 leituras
Module 3 Overview5min
Optional: Study Aid5min
Quiz7 exercícios práticos
Lesson 3-1 Quiz10min
Lesson 3-2 Quiz10min
Lesson 3-3 Quiz10min
Lesson 3-4 Quiz10min
Lesson 3-5 Quiz10min
Lesson 3-6 Quiz10min
Week 2 Quiz30min
Semana
3
Horas para completar
3 horas para concluir

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 vídeos (total de (Total 79 mín.) min), 2 leituras, 4 testes
Video11 videos
Fetal Stage - 26min
Fetal Stage - 36min
Prepubertal Stage - 17min
Prepubertal Stage - 23min
Postpubertal Stage7min
Development During Pregnancy - 12min
Development During Pregnancy - 26min
Development During Pregnancy - 35min
Lactation7min
Bovine Mammary Development13min
Reading2 leituras
Module 4 Overview5min
Optional: Study Aid5min
Quiz4 exercícios práticos
Lesson 4-1 Quiz10min
Lesson 4-2 Quiz10min
Lesson 4-3 Quiz10min
Week 3 Quiz30min
Semana
4
Horas para completar
5 horas para concluir

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 vídeos (total de (Total 124 mín.) min), 2 leituras, 7 testes
Video17 videos
A Cow Calving3min
The Neonate8min
Lactogenesis & Its Stages7min
Secretory Differentiation8min
Secretory Activation & Lactose Synthesis7min
Hormonal Regulation5min
Comparative Hormonal Regulation7min
Prolactin - Sources4min
Prolactin - Control of Secretion5min
Prolactin - Other Regulation5min
Colostrum Composition12min
Immunoglobulins in Colostrum6min
Colostrum & the Neonate10min
Immunoglobulin Receptor6min
Mammary Transport of Immunoglobulin7min
Immunoglobulin Transport to the Neonate6min
Reading2 leituras
Module 5 Overview5min
Optional: Study Aid5min
Quiz6 exercícios práticos
Lesson 5-1 Quiz10min
Lesson 5-2 Quiz10min
Lesson 5-3 Quiz10min
Lesson 5-4 Quiz10min
Lesson 5-5 Quiz10min
Week 4 Quiz30min

Instrutores

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Dr. Walter Hurley, PhD

Professor Emeritus
Department of Animal Sciences

Sobre 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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