Spider trichobothrium hair
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Spider trichobothrium hair
Scanning electron microscope (SEM) image of the base of a trichobothrium hair (x 1, 000). The hair is an air-movement sensor extending from the pit in the cuticle of a spiders leg
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Media ID 8597501
© Mary Evans Picture Library 2015 - https://copyrighthub.org/s0/hub1/creation/maryevans/MaryEvansPictureID/10705246
Abstract Arachnid Arachnida Araneae Arthropod Arthropoda Cuticle Electron Micrograph Micrograph Microscope Image Scanning Electron Micrograph Scanning Electron Microscope Scanning Electron Microscope Image Sem Image Spider Invertebrata
EDITORS COMMENTS
1. Title: A Microcosmic Marvel: The Trichobothrium Hair of Spiders (SEM Image) 2. Description: This scanning electron microscope (SEM) image reveals the intricate structure of a trichobothrium hair, an air-movement sensor found at the base of a spider's leg. Belonging to the arachnid class, within the araneae order, spiders are fascinating invertebrates known for their unique adaptations. The trichobothrium hair, an essential component of their arthropod sensory system, is one such adaptation. 3. Background: Situated in a pit on the cuticle of a spider's leg segment, trichobothria are tiny sensory hairs that play a crucial role in detecting air currents and vibrations. The hair's base, as shown in this 1,000x magnified SEM image, is intricately designed to facilitate the detection of minute air movements. 4. Features: The trichobothrium hair is composed of three distinct parts: the hair shaft, the sensory knob, and the sensory pit. The hair shaft extends from the pit, while the sensory knob is located at the base and contains sensory receptors. The pit, visible in the image, is a funnel-shaped structure that channels airflow towards the sensory knob, amplifying the sensation. 5. Function: The trichobothrium hair's primary function is to detect air currents and vibrations, which helps spiders navigate their environment and locate prey. The hair's sensitivity is remarkable, allowing spiders to sense airflow as slight as a single human hair's breadth. 6. Conclusion: This SEM image of a trichobothrium hair offers a glimpse into the microscopic world of spider biology. The intricate design of this air-movement sensor highlights the incredible adaptations that enable spiders to thrive in their environments and adds to our understanding of the natural world.
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