Staging Embryos and Fetuses Flashcards Preview

CBNS169 Human Embryology > Staging Embryos and Fetuses > Flashcards

Flashcards in Staging Embryos and Fetuses Deck (20):
1

Stage overview

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2

How to Stage

Look for the main characteristics first.
Length may be misleading, as embryos can shrink when they are preserved.
Somites are very difficult to see, and harder to count, so you may not be able to use them to stage the embryo effectively. 

3

Stages 10-13

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4

Stage 10

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5

Stage 11

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6

Stage 12

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7

Stage 13

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8

Stages 14-17

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9

Stage 14

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10

Stage 15

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11

Stage 16

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12

Stage 17

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13

Stages 18-21

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14

Stage 18

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15

Stage 19

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16

Stages 20&21

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17

Stages 22-23

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18

Stages 22&23

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19

Fetal Staging

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20

Fetal Features Difficult to See

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