ENY 3005 Study Guide - Quiz Guide: Neuroblast, Blastomere, Futile Cycle
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Unit 6 - reception & integration: the nervous system. Unit objectives: describe the origin of the insect nervous system. 2: compare and contrast the physical structure and functions of compound eyes and. Identify the major structures of the insect nervous system and describe their function. simple eyes: differentiate between the two types of simple eyes, describe the four types of mechanical receptors insects possess. Briefly describe how insects smell beginning with chemical molecules binding to receptors. Olfactory neurons are enclosed within their antennae, mouthparts, or legs. Brain interprets the signals and stimulates neurons that cause action. Which embryonic layer gives rise to the nervous system? ectoderm. Develop in embryotic ecotoderm an embryonic cell from which nerve fibers originate. Two ganglia form in each segment and they begin to connect with each other as neuron fibers grow out from each ganglion. As development increases, so does ganglia fusion.
