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Author Question: Put the embryonic/fetal characteristics in the correct order of occurrence from week 3 to week 36 of ... (Read 71 times)

geodog55

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on: Jun 28, 2018
Put the embryonic/fetal characteristics in the correct order of occurrence from week 3 to week 36 of gestation. Put a comma and space between each answer choice (a, b, c, d, etc.)
 
  a. Subcutaneous fat is present.
  b. Bone marrow forms blood cells.
  c. Spinal cord and brain appear.
  d. Skull and jaw ossify.
  e. Neural tube closes.

Question 2

A patient at the obstetric office has just learned she is pregnant with dizygotic twins. What facts will the nurse include when educating this patient? (Select all that apply.)
 
  a. Dizygotic twins are the same sex.
  b. Dizygotic twins share a placenta. c.
  Dizygotic pregnancies tend to repeat in families.
  d. Dizygotic twins have separate chorions.
  e. Dizygotic twin incidence decreases with maternal age.


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sarahccccc

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Reply #1 on: Jun 28, 2018
Answer to Question 1

C, E, D, B, A

Primitive spinal cord and brain appear at 3 weeks. Neural tube closes at 4 weeks. Skull and jaw ossify at 6 weeks. Spleen stops forming blood cells and bone marrow takes over at 29 weeks. Subcutaneous fat is present at 36 weeks.

Answer to Question 2

ANS: C, D
Dizygotic twins tend to repeat in families and have separate chorions. They can be the same sex or different sexes and have their own placenta. Incidence increases with maternal age.


geodog55

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Reply 2 on: Jun 28, 2018
YES! Correct, THANKS for helping me on my review

TheDev123

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Reply 3 on: Yesterday
:D TYSM

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