Neural Tube Formation

The neural crest cells dissociate from the neuroectoderm, become mesenchymal, and migrate along one of two pathways to form different tissues, such as melanocytes in the skin and hair.

A process by which the neural plate forms the neural tube, which involves the lengthening of the plate and the elevation of its lateral edges to form the neural folds, which then fuse in the midline to form the neural tube.

The neural groove is a depression between the neural folds that form during the process of neural tube formation, and it eventually closes to form the neural tube.

<p>The cranial end of the neural tube closes by day 25, followed by the closure of the caudal end by day 28.</p> Signup and view all the answers

<p>The anterior and posterior neuropores are openings at the cranial and caudal ends of the neural tube that communicate with the amniotic cavity.</p> Signup and view all the answers

<p>sensory ganglia, sympathetic and enteric neurons, Schwan cells, and cells of adrenal medulla, craniofacial skeleton, and glial cells</p> Signup and view all the answers

<p>The neural tube forms the central nervous system, including the brain and spinal cord, which then develop further into different regions and structures.</p> Signup and view all the answers

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

<p>There are 8 cervical nerves, and C1 is an exception with no dermatome</p> Signup and view all the answers

<p>The dorsal root of a spinal nerve supplies afferent nerve fibers to a specific area of skin, known as a dermatome</p> Signup and view all the answers

<p>The neural crest is involved in the formation of vertebrate features, craniofacial skeleton, and contributes to one-third of birth defects and many cancers.</p> Signup and view all the answers

<p>Myotomes and spinal nerves are organized into segments because they share a common origin</p> Signup and view all the answers