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The micrometer-scale setae branch into nanometer-scale projections called spatulae. [6] A Tokay gecko's two front feet can sustain 20.1 N of force parallel to the surface using approximately 14,400 setae per mm 2. This equates to ~ 6.2 pN per seta, but does not sufficiently account for the overall stickiness behavior shown by the foot pads. [7]
In most species of bees, the scopa is simply a dense mass of elongated, often branched, hairs (or setae) on the hind leg. When present on the hind legs, the modified hairs are, at a minimum, on the tibia, but some bees also have modified hairs on the femur and/or trochanter.
Pyrrolizidine alkaloid sequestration refers to the sequestration of one such class of poisonous compounds. 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 ...
Sternum: 7. prosternum, 8. mesosternum, 9. metasternum. acrostical (a) bristles adjacent to the median longitudinal axis of the scutum. They may be irregular or align in two or more rows. The number of rows, the number of setae in each row, the size and the thickness are significant. In many groups, the acrostical setae are replaced by setulae ...
Preening brush: a dense cluster of setae near the ventral tip of the posterior metatarsi; called a preening comb when present as a transverse row of setae. [ 22 ] Procurved : Used to describe a structure which is curved in such a way that the outer edges are in front of the central part; [ 22 ] opposite recurved
Figure 2: Ventral view of forcipules of a centipede, arising from the first body segment Myriapods comprise four classes of arthropod, each with a similar morphology : Class Chilopoda ( centipedes ); class Diplopoda ( millipedes ); class Pauropoda ; and class Symphyla .
The smallest belong to the class Tantulocarida, some of which are less than 100 micrometres (0.0039 in) long. [40] The largest are species in the class Malacostraca , with the legs of the Japanese spider crab potentially spanning up to 4 metres (13 ft) [ 41 ] and the American lobster reaching weights over 20 kg (44 lbs).
Polychaete annelids (polychaeta literally meaning "many bristles") are named for their chaetae. In Polychaeta, chaetae are found as bundles on the parapodia , paired appendages on the side of the body. [ 1 ]