Three Stages of Prenatal Development

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Questions and Answers

What is the first stage of prenatal development?

  • Fetal stage
  • Germinal stage (correct)
  • Embryonic stage
  • Zygote stage

What is the time span of the Germinal stage?

conception at two weeks

During the Germinal stage, key steps in establishing a ______ occur.

pregnancy

In which stage does the face, eyes, ears, limbs, and bones begin to form?

<p>Embryonic stage (D)</p> Signup and view all the answers

What is the time span of the Embryonic stage?

<p>third through eighth week</p> Signup and view all the answers

In the Embryonic stage, the ______, eyes, ears, limbs, and bones begin to form.

<p>face</p> Signup and view all the answers

What is the final stage of prenatal development?

<p>Fetal stage (D)</p> Signup and view all the answers

What is the time span of the Fetal stage?

<p>eighth or ninth week through birth</p> Signup and view all the answers

In the Fetal stage, the vocal cords develop, and the ______ system and kidneys begin to function.

<p>digestive</p> Signup and view all the answers

What types of movements are possible by the end of the third month in the Fetal stage?

<p>spontaneous or unplanned movements</p> Signup and view all the answers

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Study Notes

Germinal Stage

  • Duration spans from conception to two weeks.
  • Establishes the foundation for pregnancy through a zygote's development.

Embryonic Stage

  • Lasts from the third week to the eighth week of pregnancy.
  • Critical development period where facial features, eyes, ears, limbs, and bones begin to form.

Fetal Stage

  • Begins in the eighth or ninth week and continues until birth.
  • Key developments include the formation of vocal cords and functionality of the digestive system and kidneys.
  • Spontaneous movements can occur by the end of the third month.

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