Ectodermal Derivatives Flashcards
When does the neural tube form?
3rd Week
When does the shape of the neural tube change?
4th Week
When do the secondary brain vesicles develop?
5th Week
Fate of Telencephalon
- Cerebral Hemispheres
- Basal Ganglia
- Lateral Ventricles
Fate of Diencephalon
Thalamic and Hypothalamic Regions
Invagination of Diencephalon Floor
Infundibulum
Thickening in Diencephalon Floor
Hypophysis
Fate of Hypophysis
- Anterior Pituitary Gland
- Pars Tuberalis
- Pars Distalis
- Para Intermedia
Fate of Metencephalon
- Cerebellum
2. Pons
Fate of Myelencephalon
Medulla Oblongata
Week of formation of epithalamus, thalamus, hypothalamus
7th Week
Layers of Spinal Cord and Medulla
- Ventricular
- Intermediate
- Marginal
Layers of Cerebellum
- Ventricular
- Intermediate
- Internal Granular
- Purkinje Cell
- Marginal
- External Granular
Layers of Cerebrum
- Ventricular
- Sub-ventricular
- Intermediate
- Cortical
- Marginal
- Molecular
Secondary Mitotic Center (Cerebellum)
External Granular Layer
Precursor of Cerebrum’s 6 Layers
Neopallial Cortex
When does the determination of laminar identity occur?
Final Cell Migration
What type of migration forms the neopallial cortex?
Vertical or Radial
What kind of migration forms the 40 or so regions of the brain that regulate different body processes?
Horizontal or Lateral
Major Cell Type of the Cerebellum
Purkinje Cells
Neurons Found in the Cerebral Cortex, Hippocampus, Amygdala
Pyramidal Cells
Primary Excitatory Units
Pyramidal Cells
Important Cells for Cells Repair
Astrocytes
Cells that Contribute to the Blood-brain Barrier
Astrocytes
“Nerve Glue”
Neuroglia
Cells for Support and Tissue Repair
Neuroglia
Cells that perform phagocytosis of myelin debris
Neuroglia
Site of Neurogenesis
Dentate Gyrus of Hippocampus
Membrane proteins serving as axonal growth cone guidance molecules
Semaphorin
Where does semaphorin come from?
Trunk Neural Crest
Protein Important in the Development of Lens and Retina
Pax6 Protein
This promotes the separation of the single eye field into two bilateral fields.
Shh
This retinal layer generates action potential.
Ganglion Cell Layer
This retinal layer is composed of photoreceptors.
Outer Nuclear Layer
This retinal layer is for spatial type analysis of images
Outer Plexiform Layer
This retinal layer is for temporal and complex aspect of visual stimuli.
Inner Plexiform Layer
These cells connect rods and cones.
Horizontal Cells
These cells maintain the integrity of the retina.
Muller Cells
