page_title: Haller's organ
hierarchical_section_title: Haller's organ
caption_attribution_description: Deutsch: Haller's Organ
context_page_description: Haller's organ is a complex sensory organ possessed by ticks. Ticks, being an obligate parasites, must find a host in order to survive; via olfaction and the sensing of humidity, temperature, and carbon dioxide, Haller's organ detects them. Haller's organ is a minute cavity at the terminal segment of the first pair of a tick's legs. Each one is composed of a pit and a capsule, which contain sensory setae.
context_section_description: Haller's organ is a complex sensory organ possessed by ticks. Ticks, being an obligate parasites, must find a host in order to survive; via olfaction and the sensing of humidity, temperature, and carbon dioxide, Haller's organ detects  them. Haller's organ is a minute cavity at the terminal segment of the first pair of a tick's legs (not the pedipalps). Each one is composed of a pit and a capsule, which contain sensory setae.
caption: magn.400x, microscope: Zeiss Axioscope, lens: Zeiss PlanNeofluar40
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