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COGS 17 Lecture 3 and Guest Lecture
Terms in this set (52)
Inner layer of cells that becomes organs and glands
Outer layer of cells that becomes the skin and nervous systems
The middle layer of cells that becomes bones, muscles and blood vessels
Long enclosed chamber that becomes CNS
When ridges fuse, this hollow chamber, the length of the embryo, is formed
Ridges that curl toward one another
Failure of riidges to fuse
Surface of fused ridges that become the PNS
Hardening dorsal surface of embryo
Undifferentiated ectodermal cells
Inner lining of neural tube, from which neurons will migrate
When stem cells divide into one stem cell and one neuron or glia cell
Cells emanating from ventricular zone for neurons to migrate along
When stem cells divide into two identical, daughter stem cells
Genetic factors that influence differentiation
Can be laid down by glia cells to form a chemical trail for migrating neurons to follow
Any chemical that promotes the development and functioning of neurons
Includes Glyco-proteins, NGF, and BDNF
Environmental conditions that affect differentiation
T/F Axon Growth: A "Growth Cone" is the earliest form of an axon's terminal.
T/F Axon Growth: "Guidepost Cells" are neurons that show other neurons where to migrate.
T/F Axon Growth: "Filopodia" detect chemicals released by "Guidepost Cells".
T/F Axon Growth: Some neurotrophins attract, and others repel, the axons of various neurons.
T/F Axon Growth: Most neurons tend to develop "bushy" dendrites before their axon develops.
T/F Apoptosis during Synaptogenesis: Synaptogenesis is the formation of connections between neurons.
T/F Apoptosis during Synaptogenesis: Competing cells killing off one another is called "Apoptosis".
T/F Apoptosis during Synaptogenesis: Growing axons race to make connections with pre-synaptic dendrites.
T/F Apoptosis during Synaptogenesis: "Apoptosis" is a way of culling out the weak or poorly connected cells.
T/F Apoptosis during Synaptogenesis: As a result of "Apoptosis", fetal brains have fewer cells than newborn brains do.
What is the best interpretation of "Cells that fire together, wire together" during fetal brain development?
Greater positive, chemical feedback from groups of cells is more likely to promote connections, than less such feedback
T/F Post Natal Brain Development: The enlargement of the brain in the first year is mainly due to the growth of new cells
T/F Post Natal Brain Development: Exposing kittens to only vertical lines during their critical period significantly re-wires their V1 area.
T/F Post Natal Brain Development: The more complex and stimulating the environment, the more dendritic spines.
T/F Post Natal Brain Development: Synaptogenesis only occurs during fetal development.
T/F Post Natal Brain Development: Myelination continues through early adulthood.
Which staining technique is best for revealing the axon of a neuron?
Stages of sleep
The Penfield Map
The "N400" in language processing
Detection of Multiple Sclerosis
Comparing oxygenated s. de-oxygenated hemoglobin
Single Cell Recording
Inserting a micro-electrode probe
Aligning magnetic fields
Detecting Gamma rays from the collection of radioactive fluid at active sites
Using X-rays o generate multiple 2D slices, amalgamated into a 3D image
Track, via electric dipoles, the gross average changes in potential
What techniques is/are not associated with the subject performing a specific task.
Staining and MRI
living or post-mortem brains, or both: Staining
living or post-mortem brains, or both: EEG
living or post-mortem brains, or both: MRI
living or post-mortem brains, or both: Lesions
living or post-mortem brains, or both: Single Cell Recording
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