11-02-11 Central Nervous System

11-02-11 Central Nervous System - ZOL 320 Developmental Bio...

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Developmental Bio November 2, 2011 Central Nervous System (CNS) Early ectoderm derivatives: Surface ectoderm o Epidermis o Hair o Nails o Sebaceous glands o Olfactory epithelium o Mouth epithelium Anterior pituitary Tooth enamel Cheek epithelium o Lens, cornea Neural crest o Peripheral nervous system Schwann cells Neuroglial cells Sympathetic nervous system Parasympathetic nervous system o Adrenal medulla o Melanocytes o Facial cartilage o Dentine of teeth Neural tube o Brain o Neural pituitary o Spinal cord o Motor neurons o Retina Ectodermal derivatives: CNS CNS development is uniquely complex: Multibillions of cells, many types, each with up to 100,000 precise connections with other neural/non-neural cells Must it use special mechanisms to wire system? o Likely there would be. Basic nervous system function o Receive sensory input, process it and direct responses crucial to organism’s individual and phylogenetic success. o
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This note was uploaded on 12/21/2011 for the course BIO 202 taught by Professor Brooks during the Fall '11 term at UCSB.

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11-02-11 Central Nervous System - ZOL 320 Developmental Bio...

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