11-12 - BIO 5099: Molecular Biology for Computer Scientists...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
BIO 5099: Molecular Biology for Computer Scientists (et al) Lecture 22: A little Neurobiology http://compbio.uchsc.edu/hunter/bio5099 Larry.Hunter@uchsc.edu Nervous system development Part of the ectoderm differentiates into the neural plate, from which a neural tube and neural crest form Neural tube becomes brain and spinal cord Neural crest becomes peripheral nervous system (and facial cartilage and teeth!) Neurulation Neurulation is when the neural tube and neural crest form (early organogenesis). Neurulation is the end global interactions in chordate development Up until this point the number of global interactions within the embryo has been increasing. After this point, global interactions decrease, and local interactions predominate
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Neurons migrate further and faster than other cell types. Follow both other cells (glia) and molecular gradients Can travel over 1m to precisely specified target Neural cells Neurons and Glia are the two major cell types that make up the nervous system Neurons transmit messages from cell to cell Sensory neurons transform stimuli (e.g. light, sound, or joint position) into messages sent to other neurons Interneurons integrate information from many cells; particular interneurons are sensitive to complex features of the world; networks of interneurons are responsible for cognition and (presumably) consciousness. Motor neurons transmit messages to muscles, controlling their action. The Neuron Neurons consist of Soma , the cell body. Axon , which sends signals on to the next cell. Each neuron has one axon; it can be very long. Dendrites
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 8

11-12 - BIO 5099: Molecular Biology for Computer Scientists...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online