Search results
Results from the WOW.Com Content Network
They grow through and project through a secondary or accessory cell of a type called a tormogen, which generates the special flexible membrane that connects the base of the seta to the surrounding integument. Depending partly on their form and function, setae may be called hairs, macrotrichia, chaetae, or scales. The setal membrane is not ...
caption=Setaria distantiflora (A.Rich.) Pilg., herbarium sheet. Setaria is a widespread genus of plants in the grass family. [5] [6] The name is derived from the Latin word seta, meaning "bristle" or "hair", which refers to the bristly spikelets.
Each of a seta's branches ends in a thin, triangular spatula connected at its apex. The end is about 0.2 micrometers long and 0.2 micrometers wide. [5] The adhesion between gecko's foot and the surfaces is exactly the result of the Van der Waals force between each seta and the surface molecules. A single seta can generate up to 200 μN of force ...
seta A stiff chitinous or sclerotised hair or bristle. Also chaeta, cheta setaceous. being like or having the nature of a seta or of setae; setose; setose bearing, or covered in setae. setula Diminutive of seta. A small chitinous hair or bristle. setulose bearing, or covered in setulae. shade see central shade spiracle
The interactions between the gecko's feet and the climbing surface are stronger than simple surface area effects. On its feet, the gecko has many microscopic hairs, or setae (singular seta), that increase the Van der Waals forces - the distance-dependent attraction between atoms or molecules - between its feet and the surface.
A chaeta or cheta (from Ancient Greek χαίτη (khaítē) 'crest, mane, flowing hair'; pl. chaetae) is a chitinous bristle or seta found on annelid worms, although the term is also frequently used to describe similar structures in other invertebrates such as arthropods.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Trichobothria (singular trichobothrium) are elongate setae ("hairs") present in arachnids, various orders of insects, and myriapods that function in the detection of airborne vibrations and currents, and electrical charge. [1] In 1883, Friedrich Dahl observed that they were deflected by the sound waves from a violin and labelled them 'hearing ...