28. Pregnancy and Human Development

Sperm capacitation and polyspermy

Fertilization

 24 hours before ovulation; two days after 

 The oocyte is viable for 12 to 24 hours after it is cast out of the ovary. The chance of pregnancy drops to almost zero the next day. Most sperm retain their fertilizing power for 24 to 48 hours after ejaculation. Consequently, for successful fertilization to occur, coitus must occur no more than two days before ovulation and no later than 24 hours after. 

 three days before ovulation; two days after 

 two days before ovulation; 24 hours after 

 two days before ovulation; two days after 

 For successful fertilization to occur, coitus must occur NO more than __________ and NO later than __________. 

Fertilization: Capacitation, Acrosomal Reaction, and Polyspermy Block

General Embryology - Detailed Animation On Fertilization

Reproductive System - Fertilization

 the release of Ca<sup>2+</sup> after the sperm has entered the ovum 

 a decrease in zonal inhibiting proteins 

 the release of enzymes into the extracellular space beneath the zona pellucida 

 Which of the following does NOT prevent polyspermy? 

 The sperm has a tail that allows it to be motile, but it does not play a role in helping it locate the oocyte. 

 Acrosomes contain hydrolytic enzymes that help the sperm penetrate the membrane around the secondary oocyte, but they do not play a role in locating the oocyte. 

 The hydrolytic enzymes help the sperm penetrate the layers around the oocyte during fertilization, but they do not play a role in locating the oocyte. 

 Sperm are known to bear __________ that respond to chemical stimuli that help them locate the oocyte. 

Insights Into Male Fertility  Understanding Capacitation SD

Egg, Sperm, and Fertilization

Reproductive System - Sex & Fertilization

Learn the toughest concepts covered in Anatomy & Physiology 1&2 with step-by-step video tutorials and practice problems by world-class tutors



Anatomy & Physiology

https://static.studychannel-prd.pearsonprd.tech/courses/anp/thumbnails/anp

#FFFFFF

Androvia LifeSciences

Crash Course Anatomy & Physiology

Nucleus Medical Media

Ninja Nerd

Medicosis Perfectionalis

khanacademymedicine

Medical Animations

1. Introduction to A&P

2. Chemistry

3. Cells

4. Tissues

5. Integumentary System

6. Bones + Skeletal Tissues

7. Skeletal System

8. Joints

9. Muscles and Muscle Tissue

10. Muscular System

11. Nervous Tissue

12. Central Nervous System

13. Peripheral Nervous System

14. Autonomic Nervous System

15. Special Senses

16. Endocrine System

17. Blood

18. Cardiovascular System: the Heart

19. Cardiovascular System: Blood Vessels

20. Lymphatic System

21. Immune System

22. Respiratory System

23. Digestive System

24. Nutrition, Metabolism, Energy Balance

25. Urinary System

26. Fluid and Electrolyte Balance, Acid Base Balance

27. Reproductive System

29. Heredity

undefined - Channels

Labor initiation and stages

Labor and Delivery

Techniques of ART

Assisted Reproductive Technology

Early Embryogenesis: Cleavage, Blastulation, Gastrulation, and Neurulation

Implantation

Placenta Formation and Functions

Extraembryonic Membranes

Gastrulation

Organogenesis and Roles of the Three Primary Germ Layers

Embryonic Development

Fetal circulation

Fetal period and fetal development

Fetal Development

Functional changes in maternal organs and systems during pregnancy

Maternal metabolism and posture during pregnancy

Effects of Pregnancy on the Mother

Preparation of breasts for lactation

Changes in the Mother and Newborn After Delivery

General Chemistry

Jules

Study the key concepts of Physics with descriptive videos, questions, and more

Physics

Patrick

General Biology

Jason

Financial Accounting

Brian

Dive deep into Psychology with videos, practice problems, and more.

Psychology

Microeconomics

The first in a two-course sequence introduces the basic structure and functions of the human body

College Algebra covers algebraic topics and skills necessary to succeed in college-level math

College Algebra

Organic Chemistry

Johnny

Genetics

Kylia

GOB Chemistry

Microbiology

Cell Biology

Analytical Chemistry

Study topics incliding trogonometric functions, identities and equations, solutions of triangles, complex numbers, and other topics as time permits

Trigonometry

Learn the toughest concepts covered in Precalculus with step-by-step video tutorials and practice problems by world-class tutors

Precalculus

Biochemistry

Macroeconomics

Chemistry

Biology

Math

Business

Social Sciences

Michelle Barry Franco

Building Great Presentations

Eric Zackrison, PhD

Critical Thinking And Problem Solving

Sam Bennett

Embracing Times Of Uncertainty

Nicole Tetreault, PhD

Emotional Intelligence Basics

Eugene Choi, PharmD

Enhancing Your Critical Thinking Skills

Jason Richardson, PsyD

Habits To Win Every Day

Alyssa Lowery, PhD

Having Powerful Advanced Conversations

Don Gilman, EdD

How To Influence & Persuade

Amy Matthews

Leadership Skills For Rising Stars

Listening To Lead

Michael Shermer, PhD

Making Decisions Under Uncertainty

Lynne Hurdle

Mistakes To Avoid When Resolving Conflict

Michael Veltri

Overcoming Decision Making Traps

Mike Vardy

Prioritizing Effectively

Secrets Of Effective Prioritization

Strategies To Build Up Your Creativity

Tools For Decision Making

Tutti Taygerly

Unleash And Advance Your Creativity

Winning Collaboration: How To Work More Effectively With Different Personalities

Writing Emails People Want To Read

Critical Thinking

Self Management

Digital Literacy

Collaboration

Communication

Analytical Thinking

Leadership

Flexibility/Adaptability

Innovation

Eric Zackrison

Nicole Tetreault

Dive deep into Python with videos and more.

Introduction to Python

Arianne Dee

Agile Project and Product Management

Agile & Product Management

Mariya Breyther 

Introduction to Microsoft Power BI

Microsoft Power BI

Chris Sorensen

Data Analysis Fundamentals with Excel

Data Analysis - Excel

Chris Sorensen & Ammul Shergill

Getting Started with  and Cryptocurrency

Introduction to Blockchain

George Levy

Learn Enough HTML, CSS and Layout to be Dangerous

HTML, CSS & Layout

Lee Donahoe & Michael Hartl

Learn Enough JavaScript to be Dangerous: A Tutorial Introduction to Programming with JavaScript