1 Development Of The Nervous System

In this laboratory session, we will study the anatomy of the developing dervous system.

Below, you will be presented with a number of figures and asked to label or color certain structures in each figure.

In Figure 1.1

  1. Color the neural plate red
  2. Color the neural tube red
  3. Color the neural groove red
  4. Color the epidermis green
  5. Color the neural crest and neural crest cells green
  6. Color the neural plate border blue
  7. Color the the neural fold blue
A diagram of the stages of neural tube formation.

Figure 1.1: A diagram of the stages of neural tube formation.

In Figure 1.2 label the following structures

  1. The prosencephalon
  2. The mesencephalon
  3. The roof of the mesencephalon
  4. The rhombencephalon
  5. The metencephalon
  6. The myelencephalon
  7. The spinal cord
  8. The telencephalon
  9. The diencephalon
  10. The cranial and spinal ganglia
  11. The cephalic flexure
  12. The cervical flexure
  13. The optic vesicle
  14. The 3d ventricle
  15. The lateral ventricles
  16. The (future) cerebral aqueduct
  17. The 4th ventricle
  18. The central canal
  19. The cerebellum
  20. The choroid plexus
  21. The epiphysis
  22. The hypophysis
Development of the mammalian brain. The development of the three primary brain vesicles on gestational day (GD) 10.5 in rats (top left) and GD 26± 1 in humans (top right). The more mature brain with five brain vesicles: the horizontal and lateral views correspond to GD11.5 in rats (middle left) and GD 33 ± 1 in humans (middle right). Bottom left: The lateral view shows the migratory paths from the more central ventricularzone and gradients maturation of the neocortex (arrows). Bottom right: The midsagittal view of the brain and spinalcord, with the major divisions delineated and the continuity of the ventricles noted; the formation of the choroid plexus corresponds to GD 13.5 in rats (left) and GD 48-51 in humans (right). Adapted from Rice and Barone.

Figure 1.2: Development of the mammalian brain. The development of the three primary brain vesicles on gestational day (GD) 10.5 in rats (top left) and GD 26± 1 in humans (top right). The more mature brain with five brain vesicles: the horizontal and lateral views correspond to GD11.5 in rats (middle left) and GD 33 ± 1 in humans (middle right). Bottom left: The lateral view shows the migratory paths from the more central ventricularzone and gradients maturation of the neocortex (arrows). Bottom right: The midsagittal view of the brain and spinalcord, with the major divisions delineated and the continuity of the ventricles noted; the formation of the choroid plexus corresponds to GD 13.5 in rats (left) and GD 48-51 in humans (right). Adapted from Rice and Barone.