Early development of the mesoderm Flashcards Preview

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Flashcards in Early development of the mesoderm Deck (16)
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1

What does the paraxial mesoderm develop into?

Muscle bone (somites) + dermis

2

What does the intermediate mesoderm develop into?

Gonads and kidneys (urogenital system)

3

What does the lateral plates of the mesoderm develop into?

The cardiovascular system, somatic and splanchnic mesoderm

4

What are somites?

Blocks of paraxial mesodermic tissue which go onto develop into muscle and bone

5

When do the first pair of somites form?

Day 20

6

What do dermomytomes develop into?

Derived from somites; they develop into skeletal muscle and connective tissue

7

What do sclerotomes develop into?

Derived from somites; they develop into bones and connective tissue

8

What do dermatomes develop into?

The dermis of the skin

9

What are the two lateral plates of mesoderm?

Splanchnic and somatic

10

What does the splanchnic mesoderm form?

Visceral serous membrane - in contact with the endoderm

11

What does the somatic mesoderm form?

Parietal serous membrane - in contact with the ectoderm

12

Which germ layer forms the parietal peritoneal layer?

Lateral plate - somatic mesoderm

13

Which germ layer forms the visceral peritoneum?

Lateral plate - splanchnic mesoderm

14

Where does the dermis originate from?

The paraxial mesoderm

15

Where do the muscles and bones originate from?

The paraxial mesoderm

16

Where does the urogenital system originate from?

The intermediate mesoderm