بررسی فیزیولوژی اعضای حسی حشرات

Abstract

All insects have sensory organs that allow them to see, smell, taste, hear, and touch their environment. These are the same five senses that humans experience; therefore, insects can see, hear, smell, etc. However, experimental evidence has shown that an insect’s sensory capabilities are very different from those of humans and other vertebrates. All sensory organs (receptors) act as transducers, converting light energy, chemical energy, or mechanical energy from the environment into electrical energy in the form of nerve impulses in sensory neurons. Signals generated by insect sensory receptors travel to the brain or ventral nerve cord, where they stimulate appropriate behavioral responses. All sensory receptors are derived from the embryonic ectoderm and are integral parts of the insect’s exoskeleton. They can be grouped into three categories depending on their function: mechanoreceptors, chemoreceptors, and photoreceptors.