Introduction to Embryology

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What is the origin of the central nervous system?

Neural crest cells

Axial mesoderm

Neural plate (correct)

Ectoderm

What signals from surrounding tissues pattern the neural tube?

Signals from the notochord (correct)

Signals from the mesoderm

Signals from the ectoderm

Signals from the neural crest cells

What is the result of the fusion of the body wall?

Fusion of the lateral folds in the ventral midline (correct)

Formation of the neural tube

Formation of the neural plate

Formation of the notochord

What are the migratory cells from the dorsal neural tube?

Neural crest cells Signup and view all the answers

What do the neural crest cells in the head give rise to?

Melanocytes, Cranial ganglia, and Craniofacial skeleton Signup and view all the answers

What is the result of gastrulation?

Generation of 3 germ layers Signup and view all the answers

What is the significance of understanding normal development?

To understand the causes and genetics of birth defects Signup and view all the answers

What is formed during the cleavage stage?

A ball of cells called a morula Signup and view all the answers

What is the significance of the trophectoderm?

It forms the placenta Signup and view all the answers

What is the result of gastrulation?

Formation of three germ layers Signup and view all the answers

What is the significance of the primitive streak?

It is the site of gastrulation Signup and view all the answers

What is the result of the migration of cells from the neural tube?

Formation of the neural crest Signup and view all the answers

What is the significance of the medial-lateral axis?

It determines the back-belly axis Signup and view all the answers

What is the role of the epiblast?

It generates the embryo Signup and view all the answers

What is the significance of the inner cell mass?

It generates the embryo Signup and view all the answers

What is the result of neurulation?

Formation of the neural tube Signup and view all the answers

Introduction to Embryology

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Questions and Answers

What is the origin of the central nervous system?

What signals from surrounding tissues pattern the neural tube?

What is the result of the fusion of the body wall?

What are the migratory cells from the dorsal neural tube?

What do the neural crest cells in the head give rise to?

What is the result of gastrulation?

What is the significance of understanding normal development?

What is formed during the cleavage stage?

What is the significance of the trophectoderm?

What is the result of gastrulation?

What is the significance of the primitive streak?

What is the result of the migration of cells from the neural tube?

What is the significance of the medial-lateral axis?

What is the role of the epiblast?

What is the significance of the inner cell mass?

What is the result of neurulation?

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