A Biological Screw in a Beetle's Leg

The coxa-trochanteral joints on the legs of the weevil Trigonopterus oblongus (Pascoe) work as a biological screw-and-nut system. The apical portions of the coxae closely resemble nuts with well-defined inner threads covering 345°. The corresponding trochanters have perfectly compatible external spi...

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Bibliographic Details
Published inScience (American Association for the Advancement of Science) Vol. 333; no. 6038; p. 52
Main Authors van de Kamp, Thomas, Vagovič, Patrik, Baumbach, Tilo, Riedel, Alexander
Format Journal Article
LanguageEnglish
Published Washington, DC American Association for the Advancement of Science 01.07.2011
The American Association for the Advancement of Science
Subjects
Animals
Axes of rotation
Biological and medical sciences
BREVIA
Extremities - anatomy & histology
Extremities - physiology
Femur
Fundamental and applied biological sciences. Psychology
Hip
Image Processing, Computer-Assisted
Insecta
Insects
Invertebrates
Joints
Joints - anatomy & histology
Joints - physiology
Legs
Morphology. Histology. Cytology
Movement
Muscles
Muscles - anatomy & histology
Muscles - physiology
Plant spines
Rotation
Weevils
Weevils - anatomy & histology
Weevils - physiology
Scanning electron microscopy
Leg(animal)
Coleoptera
Arthropoda
Insecta
Morphology
Curculionidae
Invertebrata
Anatomy
Joint
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Summary:The coxa-trochanteral joints on the legs of the weevil Trigonopterus oblongus (Pascoe) work as a biological screw-and-nut system. The apical portions of the coxae closely resemble nuts with well-defined inner threads covering 345°. The corresponding trochanters have perfectly compatible external spiral threads of 410°.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0036-8075
1095-9203
DOI:10.1126/science.1204245