BIOL 3P64 Study Guide - Comprehensive Final Exam Guide - Insect, Fly, Hemolymph

• School: Brock University
• Department: Biological Sciences
• Course: BIOL 3P64
• Professor: Adam Jewiss-Gaines (Fiona Hunter)

Document Summary

If a leg is removed (juvenile) a new small leg will appear at the next molt: moulting and the brain, corpora allata, produce juvenile hormone, ptth. Lecture set #6: nervous system and circulatory system. A & b: brain and subesophageal ganglion. Abdominal ganglia important for digestion, excretion, reproduction. Insect transmit signals from sensory organs to ganglia. Ganglia sends signals to muscles, causes contractions. Many reflex arcs (neural pathway that controls reflexes), bypass the insect brain. Secretes hormones which initiate events like moutling, sex maturation, diapause (diapause-undergo a period of suspended development. ) Soma- the cell body of a neuron. Axon- propagates electrical impulses away from the soma. Dendrite- conducts electrical impulses into the soma. Glial cells removed unwanted materials around neurons. Unipolar: one protoplasmic process (neurite) extends from the cell body. Bipolar cells are specialized sensory neurons for the transmission of special senses.