Insect Physiology

Insect physiology includes the physiology and biochemistry of insect organ systems.

Although diverse, insects are quite similar in overall design, internally and externally. The insect is made up of three main body regions (tagmata), the head, thorax and abdomen. The head comprises six fused segments with compound eyes, ocelli, antennae and mouthparts, which differ according to the insect’s particular diet, e.g. grinding, sucking, lapping and chewing. The thorax is made up of three segments the pro, meso and meta thorax, each supporting a pair of legs which may also differ, depending on function, e.g. jumping, digging, swimming and running. Usually the middle and the last segment of the thorax have paired wings. The abdomen generally comprises eleven segments and contains the digestive and reproductive organs (McGavin, 2001). A general overview of the internal structure and physiology of the insect is presented, including digestive, circulatory, respiratory, muscular, endocrine and nervous systems, as well as sensory organs, temperature control, flight and molting.

Read more about Insect PhysiologyDigestive System, Circulatory System, Respiratory System, Muscular System, Endocrine System, Nervous System, Reproductive System, Life Cycle, Molting

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Insect Physiology - Molting
... As an insect grows it needs to replace the rigid exoskeleton regularly (McGavin 2001 Triplehorn Johnson, 2005,) ... Molting may occur up to three or four times or, in some insects, fifty times or more during its life (McGavin, 2001) ... by abdominal muscle contractions caused by the insect swallowing air or water ...
Timeline Of Entomology Since 1900
... Sydney Skaife African Insect Life published ... — The Physiology of Insecta Takashi Shirozu Butterflies of Japan Illustrated in Colour published in Tokyo by Hokuryu-kan. 1965 Nikolaj Sergejevitsch Borchsenius Essay on the classification of the armoured scale insects (Homoptera, Coccoidea, Diaspididae) ...

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