HSF - Lecture 10 Flashcards

0
Q

What is a morula?

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1
Q

Differentiate between a morula and a blastocyst

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2
Q

Describe the oviduct

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3
Q

Where does fertilisation occur?

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4
Q

Differentiate between the blastocyst and the blastocoele

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5
Q

Describe the asymmetry of the blastocyst.

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6
Q

Describe the fate of the different cells in the blastocyst

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7
Q

What is the trophoblast?

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8
Q

At what stage does the ball of cells implant in the uterus?

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9
Q

What are germ layers?

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10
Q

What is the name of the process of formation of the three germ layers?

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11
Q

What does the inner cell mass that differentiate into?

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12
Q

What is the fate of the epiblast?

What is the fate of the hypo blast?

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13
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What name is given to epiblast + hypoblast?

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14
Q

What is e name of the cavity formed within the epiblast?

A

Amniotic cavity

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15
Q

Compare the yolk sack of chickens and humans

A

In humans there is no yolk in the sack - evolution has done away with this energy source

16
Q

Describe where the primitive streak appears and when this happens

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17
Q

What is the different between the primitive streak and the primitive groove?

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18
Q

Describe the process of gastrulation in a human

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19
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What determines the fate of cells moving through the primitive streak?

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20
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What structures arise from ectoderm?

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21
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What structures arise from mesoderm?

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22
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What structures arise from endoderm?

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23
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What is the first structure to arise in the embryo?

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24
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Describe the process of neurulation

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25
Q

What is the difference between the primitive groove and the neural groove?

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In exactly the same position, however the primitive streak arises much earlier in development.

Primitive streak gives rise to the three germ layers

Neural groove: gives rise to the neural tube

26
Q

Where do the neural crest cells come from?

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27
Q

Which germ layer gives rise to the neural tube and neural crest cells

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28
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What do neural crest cells go on to form?

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29
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Describe the role of HOX genes in development

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30
Q

From which germ layer do the pleura, pericardium and peritoneum arise?

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31
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What is the difference between the two terms mysenchyma and mesoderm?

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