HFF - Embryology Flashcards

1
Q

________ is the big event of week 3 and begins with formation of the _______ _______.

A

Gastrulation begins with formation of the primitive streak

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2
Q

What germ layer does the notochord form from?

A

Mesoderm

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3
Q

What do the cloacal and oropharyngeal membranes go on to form, respectively?

A

Cloacal –> anus

Oropharyngeal membrane –> oral cavity

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4
Q

Formation of the intraembryonic coelom splits the _______ mesoderm into the _______ and _______ mesoderm.

A

the IEC splits the lateral mesoderm into the somatic (dorsal side) and splanchnic (ventral side) mesoderm

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5
Q

Somites form from the ________ mesoderm and go on to form the….(3)?

A

Somites form from the paraxial mesoderm and go on to form the vertebrae, ribs, muscles.

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6
Q

What does the intermediate mesoderm go on to form?

A

Kidneys, gonads

Kidneys Intermediate gonaDS

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7
Q

Describe the fate of the lateral mesoderm.

A

Splits to somatic and splanchnic mesoderm. Splanchnic forms the visceral pleura and somatic forms the parietal pleura.

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8
Q

In general, what does the ectoderm go on to form?

A

Skin, nervous system

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9
Q

In general, what does the mesoderm go on to form?

A

The “means” - muscles, heart, skeleton

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