EOU Exam on Thursday, May 1st

Lesson #10

The Placenta

Learning Intention:

Students will be able to research different factors that affect a healthy pregnancy and share their information with others.

Success Criteria:

I am successful when I can...

Define what the placenta is and explain its basic structure
Describe the main functions of the placenta during pregnancy
Explain how the placenta connects the mother and fetus
Identify common issues related to placental health

Reminders:

1) Exam Tomorrow

NGSS Standard:

HS-LS1-2: From Molecules to Organisms: Structures and Processes

Performance Expectation: Develop and use a model to illustrate the hierarchical organization of interacting systems that provide specific functions within multicellular organisms.

Part 1

Warm-Up (5 min)

Directions: Write 4 sentences that answer the question below. Use the academic vocabulary provided:

Tier 2

Activate

Function

Structure

Process

Transform

Mistake

Tier 3

Differentiation

Tumor

Specialized

Stem Cell

Part 2:

KWL

(10 min)

Directions: Make a KWL chart in your notebook. Fill out the K and W column before the video. Fill out the L column during the video.

Part 3:

Search and Unseen

(10 min)

The Placenta: A Lifeline and a Risk

Search

Why do pregnant women need to be cautious about the medications they take?

Unseen

A pregnant woman contracts a bacterial infection that does not cross the placenta. How might the baby still be affected, and what biological processes could explain this?

Part 4: Researching Factor (15 minutes)

Directions: Below, each group has been assigned a different factor that affects pregnancy.

Step 1) Research the factor with your group. Click on the image beneath your group name to open the link.

Step 2) Then create a poster that informs people about the factors effect.

Group 2:

Folic Acid

Folic AcidCDC urges women to take 400 mcg of folic acid every day, starting at least one month before getting pregnant, to help prevent major birth defects of the baby’s brain and spine.

Group 3:

Alcohol

Alcohol and pregnancy: MedlinePlus Medical EncyclopediaPregnant women are strongly urged not to drink alcohol during pregnancy.

Group 4:

Cigarettes

Smoking, Pregnancy, and BabiesMost people know that smoking causes cancer and other major health problems. And smoking while you’re pregnant can cause serious problems, too.

Group 5:

Retinoids

Isotretinoin and other retinoids during pregnancyIsotretinoin, a prescription retinoid, is used to treat severe acne. If you're pregnant, oral retinoids may increase your baby's risk for birth defects. Learn how to protect your baby from the effects of isotretinoin.

Group 6:

Overall Diet

Nutrition During PregnancyNot only is eating nutritious food good for you and your baby, it also can ease some of the discomforts of pregnancy. A balanced diet can help minimize symptoms such as nausea and constipation.

Group 7:

Marijuana

Group 8:

Pesticides

Pesticides and PregnancyDuring pregnancy, your baby's nervous system is rapidly developing, so you definitely want to avoid any type of contact with pesticides during pregnancy.

Group 9:

Opioids

Basics About Opioid Use During Pregnancy | CDCRegardless of the reason, women who use opioids during pregnancy should be aware of the possible risks during pregnancy, as well as her potential options.

Part 5: Take-Away

Past regents have asked about the effect of alcohol, cigarettes (nicotine), toxins, pesticides, retinoids, overall diet, Folic acid and infectious diseases on pregnancy.

Alcohol, cigarettes (nicotine), toxins, pesticides and other negative chemicals are more likely to harm a fetus in early stages of pregnancy MORE than later stages because many essential organs are forming. These chemicals can diffuse from the mother's blood into the baby through the placenta.

Folic acid prevents major birth defects of the brain, spine and nervous system.

An overall good diet is necessary in order for a fetus to develop correctly, especially during early pregnancy when important organs are forming.

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