MSK System Embryology 1 Flashcards

1
Q

What germ layer forms smooth muscle coat?

A

Mesoderm

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2
Q

What germ layer forms smooth muscle?

A

Mesoderm

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3
Q

What germ layer forms the skeleton?

A

Mesoderm

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4
Q

What germ layer forms the striated muscle?

A

Mesoderm

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5
Q

These paired blocks of mesoderm give rise to skeletal muscle?

A

Somites

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6
Q

What are the 3 layers that the somite splits into?

A

Myotome layer, dermatome layer, and sclerotome layer

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7
Q

What are the 4 supports cells (fibroblasts, chondrocytes, osteoblasts, and myofibroblasts) derived from?

A

Mesenchyme (mesoderm tissue that can develop into skeletal or connective tissue).

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8
Q

What activates the transcription of muscle specific genes and myogenic cell differentiation?

A

MyoD

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9
Q

How do limb muscles develop?

A

Cells migrate from the ventral dermomyotome of somites and form limb buds

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10
Q

What happens to the cells when they move into limb buds?

A

They undergo epitheliomesenchyma transformation

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