The Reproductive Process

Question 1

Review the images and text about stages 13 (about 32 days) and 23 (about 53-58 days), and compare the limb development at these stages.

Revolt · Accepted Answer

At stage 13, all four limb buds are present, with the upper limb buds resembling flippers. By stage 23, the upper limbs have well-formed arms, elbows, wrists, and fingers, and the lower limbs have well-formed knees, feet, and toes.

Question 2

Which of the following did you include in your response?

Revolt · Accepted Answer

In stage 13, all four limb buds are present.; In stage 13, the upper limb buds resemble flippers.; In stage 23, the upper limb shows well-formed arm, elbow, wrist, and fingers.; In stage 23, the lower limb shows well-formed toes, feet, and knees.

Question 3

The pregnancy is considered “at term” at this point.

Revolt · Accepted Answer

38 weeks

Question 4

At this point, eyelids and ears are forming.

Revolt · Accepted Answer

8 weeks

Question 5

At this point, lungs begin to produce surfactant.

Revolt · Accepted Answer

24 weeks

The Reproductive Process Answers

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