Discovering Stem Cells
Professor Ronald McKay discusses how he identified stem cells, and how they can explain the fundamental molecular processes of the nervous system.
Related Content
1230. Progenitor Cells
Professor Pat Levitt describes progenitor cells, which are immature, undifferentiated cells. They are the precursors to neurons.
1081. Neurogenesis in the Hippocampus and Olfactory Bulb
Professor Ronald McKay explains that neurons in the hippocampus and olfactory bulb are unique in that they are produced throughout life. This is known as neurogenesis.
2059. Synaptic competition
Professor Jeff Lichtman introduces the concept of synaptic competition, the process whereby nerve cells compete for space in the brain - much like protozoa in a very weird pond.
863. Rethinking Glia
It is increasingly clear that the nonneuronal brain cells called glia are intricately involved in the neuronal crosstalk at synapses.
1287. Mirror Neurons - Different Types
Researchers have identified three types of mirror neurons that respond to stimuli - 1) in reaching distance, 2) outside of reaching distance, and 3) both distances.
485. GABA Neurotransmitter
Gamma-aminobutyric acid (GABA) is a very common neurotransmitter in the Central Nervous System, whose primary function is to inhibit the transmission of a signal through a neuron.
1439. Biochemicals - Excitation and Inhibition
Doctor Josh Dubnau explains that the genes active in different neurons can make them excitatory (e.g. glutamate) or inhibitory (e.g. GABA). These neurotransmitters are critical to learning.
16952. 2D Animation of Intrathecal Drug Delivery for SMA
An animation shows how drugs for SMA may be delivered via infusion into the spinal cord.
871. Mirror Neurons and Autism (2)
Abnormalities in a specific type of brain cells called mirror neurons have been associated with autism.
1278. Aplysia and Learning
Professor Eric Kandel discusses the attributes that make Aplysia, a type of sea slug, an ideal model for studying learning and memory.