Ninja Nerd- Embryology- Neurulation
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Questions and Answers

What is the name of the plate formed by the thickening of the ectoderm during embryonic development?

  • Nodal cord
  • Mesoderm plate
  • Neural plate (correct)
  • Endoderm plate
  • What initiates the process of ectodermal proliferation in the embryo?

  • Mesoderm
  • Notochord releasing growth factors (correct)
  • Endoderm
  • Neural crest cells
  • What is the role of the neural groove in embryonic development?

  • To form the notochord
  • To house the neural crest cells (correct)
  • To catalyze ectodermal proliferation
  • To create the neural folds
  • Why does the neural plate begin to involute during development?

    <p>To initiate folding and specialization of cells</p> Signup and view all the answers

    What is the term for the specialized cells that form along the edges of the neural folds?

    <p>Neural crest cells</p> Signup and view all the answers

    Which structure secretes growth factors that stimulate ectodermal proliferation in early embryonic development?

    <p>Notochord</p> Signup and view all the answers

    Which day do we start to see the formation of the neural plate?

    <p>Day 17</p> Signup and view all the answers

    What is the role of folate in the context of neural tube development?

    <p>Synthesizing DNA and allowing cell replication</p> Signup and view all the answers

    On which day is the neural tube completely formed?

    <p>Day 21</p> Signup and view all the answers

    What happens when the anterior neuro pore fails to close due to a lack of folate?

    <p>Defects within the spinal cord</p> Signup and view all the answers

    What structures fuse to form the complete neural tube during development?

    <p>Neural folds with each other</p> Signup and view all the answers

    At what point during development do the neural crest cells begin to grow in relation to the fusion of the neural folds?

    <p>Before fusion</p> Signup and view all the answers

    What is the approximate daily folate requirement during pregnancy to maintain the proliferative process for neural tube closure?

    <p>3-5 milligrams</p> Signup and view all the answers

    Around which day of development does the posterior neural pore generally close?

    <p>Day 26</p> Signup and view all the answers

    Which syndrome can result from an encephalocele that causes cystic renal dysplasia, polydactyly, and protrusion of brain and meningeal tissue in the occipital region?

    <p>Mekel Gruber syndrome</p> Signup and view all the answers

    What process involves the formation of three vesicles in the neural tube, bulging out towards the cranial end?

    <p>Vesiculation</p> Signup and view all the answers

    Which event occurs first in the process of neurulation?

    <p>Ectodermal proliferation</p> Signup and view all the answers

    What is the role of folate in neural tube development?

    <p>Maintains proliferative process for neural tube closure</p> Signup and view all the answers

    Which primary vesicles develop further by proliferating and specializing to form more vesicles?

    <p>Prosencephalon</p> Signup and view all the answers

    What does the telencephalon become as part of brain development?

    <p>Cerebrum</p> Signup and view all the answers

    Which structure is highlighted by the color maroon and forms part of the prosencephalon?

    <p>Diencephalon</p> Signup and view all the answers

    What does the myelencephalon develop into as part of brain development?

    <p>Medulla</p> Signup and view all the answers

    Which part of the brain consists of thalamus, hypothalamus, epithalamus, and subthalamus?

    <p>Diencephalon</p> Signup and view all the answers

    Which structure eventually becomes the pons and cerebellum during brain development?

    <p>Metencephalon</p> Signup and view all the answers

    What is the main function of melanocytes mentioned in the text?

    <p>Produce pigment for skin color</p> Signup and view all the answers

    Where do chromaffin cells, which secrete epinephrine and norepinephrine, typically reside?

    <p>Adrenal medulla</p> Signup and view all the answers

    What is the major function of the structures known as the Meissner's plexus and Auerbach plexus?

    <p>Working with the enteric nervous system</p> Signup and view all the answers

    Which part of the body does the text mention being influenced by neural crest cell differentiation?

    <p>Gut structures</p> Signup and view all the answers

    What is the process that the text describes for the development of the brain, brain stem, cerebellum, and spinal cord?

    <p>Vesicular Sheen</p> Signup and view all the answers

    Which structures are derived from neural crest cells according to the text?

    <p>Enteric Nervous System and Skin Cells</p> Signup and view all the answers

    What is the role of chromaffin cells which are derived from neural crest cells?

    <p>Secretion of Epinephrine and Norepinephrine</p> Signup and view all the answers

    Where do the structures Meissner's plexus and Auerbach plexus primarily reside?

    <p>Gut (Intestines)</p> Signup and view all the answers

    What is the main function of melanocytes as mentioned in the text?

    <p>Synthesis of Pigment</p> Signup and view all the answers

    What structures do neural crest cells NOT differentiate into according to the text?

    <p>Thalamus and Hypothalamus</p> Signup and view all the answers

    Which part of the body is influenced by neural crest cell differentiation according to the text?

    <p>Enteric Nervous System</p> Signup and view all the answers

    What is the function of neural crest cells in relation to the adrenal medulla?

    <p>Secrete Epinephrine and Norepinephrine</p> Signup and view all the answers

    What term describes the movement of neural crest cells to different locations in the body where they differentiate into specialized cell types?

    <p>Interkinetic Migration</p> Signup and view all the answers

    What is a common function of structures derived from neural crest cells according to the text?

    <p>Nervous System Development</p> Signup and view all the answers

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