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Ch 45: Reproductive Sequence for the MCAT: Help and Review

About This Chapter

The reproductive sequence chapter of this MCAT Help and Review course is the simplest way to master the reproductive sequence. This chapter uses simple and fun videos that are about five minutes long, plus lesson quizzes and a chapter exam to ensure students learn the essentials of the reproductive sequence.

Who's it for?

Anyone who needs help learning or mastering MCAT material will benefit from taking this course. You will be able to grasp the subject matter faster, retain critical knowledge longer and earn higher scores. You're in the right place if you:

  • Have fallen behind in understanding developmental stages from fertilization to delivery
  • Need an efficient way to learn about the reproductive sequence
  • Learn best with engaging auditory and visual tools
  • Struggle with learning disabilities or learning differences, including autism and ADHD
  • Experience difficulty understanding your teachers
  • Missed class time and need to catch up
  • Can't access extra MCAT review resources at school

How it works:

  • Start at the beginning, or identify the topics that you need help with.
  • Watch and learn from fun videos, reviewing as needed.
  • Refer to the video transcripts to reinforce your learning.
  • Test your understanding of each lesson with short quizzes.
  • Submit questions to one of our instructors for personalized support if you need extra help.
  • Verify you're ready by completing the Reproductive Sequence for the MCAT chapter exam.

Why it works:

  • Study Efficiently: Skip what you know, review what you don't.
  • Retain What You Learn: Engaging animations and real-life examples make topics easy to grasp.
  • Be Ready on Test Day: Use the Reproductive Sequence for the MCAT chapter exam to be prepared.
  • Get Extra Support: Ask our subject-matter experts any reproductive sequence question. They're here to help!
  • Study With Flexibility: Watch videos on any web-ready device.

Students will review:

In this chapter, you'll learn the answer to questions including:

  • What are they steps in fertilization and zygote formation?
  • What occurs during oocyte activation and cell cleavage?
  • What are the early stages of embryonic development?
  • How do embryos implant and placentas form?
  • What are the functions of amniotic fluid, the amnion and the yolk sac?
  • What are the ectoderm, endoderm and mesoderm?
  • How do external genitals develop in males and females?
  • What is the timeline for fetal development in the first trimester?
  • How does the fetus grow in the second trimester?
  • What development occurs during the third trimester?
  • What are the three stages of labor?
  • What role do hormones play in labor and delivery?
  • How is a C-section performed?

14 Lessons in Chapter 45: Reproductive Sequence for the MCAT: Help and Review
Fertilization and Zygote Formation: Definition and Processes

1. Fertilization and Zygote Formation: Definition and Processes

Follow the male's sperm and the female's egg on their way to meet each other in this lesson that takes you through the process of fertilization in humans. Learn about the obstacles the sperm must get through before it can fertilize the egg.

Fertilization: Oocyte Activation & Cell Cleavage

2. Fertilization: Oocyte Activation & Cell Cleavage

When is the exact moment of fertilization? Learn the answer in this lesson. We'll look at what happens after the sperm penetrates the outer layers of the oocyte during the process of fertilization.

Early Embryonic Development: The Morula and Blastula

3. Early Embryonic Development: The Morula and Blastula

This lesson on the early stages of mammalian development covers the processes following fertilization, such as cleavage, the morula formation and blastula formation. Watch to learn what the inner cell mass, trophoblast cells and blastocyst are, as well as their functions within embryonic development.

Embryo Implantation and Placenta Formation

4. Embryo Implantation and Placenta Formation

This lesson will cover the journey the mammalian embryo first makes after it has been fertilized. Learn how maternal blood moves through the embryo, and how the placenta is formed.

The Placenta and the Fetus: Structure and Function

5. The Placenta and the Fetus: Structure and Function

Have you ever wondered how a baby eats before it's born or if babies go to the bathroom while still inside their mother? In this lesson, you will learn about the placenta and how it works to ensure a fetus stays well-nourished and healthy before birth.

Amniotic Fluid, The Amnion, and the Yolk Sac

6. Amniotic Fluid, The Amnion, and the Yolk Sac

From a chick developing inside an egg to a human baby growing in its mother's womb, all developing vertebrates rely on a support system to protect them, feed them, supply them with oxygen, remove wastes, and do much, much more to ensure that the embryo grows and develops into a fully functional organism. In this lesson, you'll learn about the different parts of that support system and some of the things that they do.

Gastrulation and the 3 Germ Layers (Ectoderm, Endoderm & Mesoderm)

7. Gastrulation and the 3 Germ Layers (Ectoderm, Endoderm & Mesoderm)

Gastrulation is a key process in embryonic development - it's how a simple ball of cells begins to grow into a fully functioning being! Watch this lesson to learn about a key process in the development of almost all multicellular organisms.

External Genital Development in Males and Females

8. External Genital Development in Males and Females

The developed genitals of a male look much different than the developed genitals of a female. However, they both grow from identical sets of tissues. Learn more about external genital development and find out how and when the tissue changes.

Fetal Development in the First Trimester: Stages & Timeline

9. Fetal Development in the First Trimester: Stages & Timeline

We all know it takes 9 months for the baby to develop inside the mother's womb, but have you ever thought about how or when all those different organs and systems appear? When does the fetal heart start beating or the brain develop? Find out in this lesson covering the first trimester of pre-natal development.

Second Trimester Fetal Development

10. Second Trimester Fetal Development

The growth and development of a baby is an amazingly detailed and complex process. It starts with a ball of cells, which grows all the way to a full grown, eight pound baby in nine months! In this lesson, learn about what happens during the second trimester of pregnancy.

Third Trimester Fetal Development

11. Third Trimester Fetal Development

This is it - the last step, the last few months before the birth of a baby! Learn about the changes the developing fetus goes through during the third and final trimester.

The Three Stages of Labor: Dilation, Expulsion & Placental

12. The Three Stages of Labor: Dilation, Expulsion & Placental

You may think of the process of labor and childbirth as one long event, but it is actually divided into different stages. Learn about each of the three stages of labor in this lesson.

Childbirth: The Role of Hormones in Labor and Delivery

13. Childbirth: The Role of Hormones in Labor and Delivery

How does a mother's body know when it is time to give birth? How does the labor process begin and end? Learn the answers to these questions in this lesson on the hormones involved in childbirth.

What is a C-Section? - Procedure, Types & Delivery

14. What is a C-Section? - Procedure, Types & Delivery

Do you know what happens when something goes wrong during the birthing process? You may have heard about C-sections, but do you know why they are performed - or how? Learn about this and more in this lesson on Cesarean sections.

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Other Chapters

Other chapters within the MCAT Prep: Help and Review course

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