Term
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Definition
| The usually epithelium lined space between the body wall and the digestive tract |
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Term
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Definition
| Of or relating to the viscera |
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Term
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Definition
| An internal organ of the body located in the trunk proper |
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Term
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Definition
| Of or relating to the wall of the body |
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Term
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Definition
| Of or relating tot he wall of a part or cavity |
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Term
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Definition
| Relating to or situated in the central part of the body. In the head or trunk, not the limbs. |
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Term
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Definition
| One of the longitudinal series of segments into which the body of many animals is divided |
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Term
| What are the 3 paired veins that drain into the heart of the 4 week embryo |
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Definition
Vitelline
Cardinal
Umbilical |
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Term
| What is the origin of the mesoderm? |
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Definition
| The mesoderm is derived from cells in the epiblast that migrate down the primitive streak in the later stages of gastrulation and as such sit between the endo and ecto derm |
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Term
| What are the 3 subsets of the mesoderm that it gets split into? |
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Definition
| Intermediate, lateral, and paraxial |
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Term
| What 2 subsets does the lateral mesoderm split into? |
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Definition
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Term
| What body structures does the Paraxial mesoderm give rise to? |
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Definition
| After organizing into somites, the paraxial mesoderm differentiates into the axial skeleton, muscles, limb muscles, and the dermis |
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Term
| What body structures does the intermediate mesoderm give rise to? |
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Definition
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Term
| What body structures does the splanchnic mesoderm give rise to? |
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Definition
| Visceral pleura, mesenteries, epicardium, blood cells, blood vessels, endocardium (organs mostly) |
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Term
| What body structures does thee somatic mesoderm give rise to? |
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Definition
| Skeletal limbs and parietal pleura, pericardium, and peritoneum (body wall lining mostly) |
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Term
| Describe the process of lineage tracing |
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Definition
1. Remove part of the somites from a sample
2. Replace with "tagged" somites
3. See where the "tagged" somites end up |
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Term
| What is the process by which muscle cells are formed from myoblasts? |
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Definition
1. Myoblasts leave the cell cycle
2. Myoblasts fuse to form a myotube (multiple mononucleate myoblasts fuse to form a syncytium)
3. Units assemble into sarcomeres
4. Fusion with satellite cells for growth |
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Term
| What are the two major types of bone formation? |
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Definition
Endochondral ossification
Intramembranous bone formation |
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Term
| How does endochondral ossification work? |
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Definition
1. Cartilage model of bone forms in mesenchymes
2. Throughout embryogenesis, true bone replaces this cartilage
Note: Most bones are formed this way |
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Term
| How does Intramembranous bone formation work? |
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Definition
Direct ossification of mesenchymal cells (no cartilaginous intermediate)
Superfical face and skull bones form this way |
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