Pelvic fin - Wikipedia
Pelvic fins or ventral fins are paired fins located on the ventral (belly) surface of fish, and are the lower of the only two sets of paired fins (the other being the laterally positioned pectoral fins).
Fish fin - Wikipedia
The pelvic fin assists the fish in going up or down through the water, turning sharply, and stopping quickly. In gobies, the pelvic fins are often fused into a single sucker disk. This can be used to attach to objects [1] Pelvic fins can take many positions along the ventral surface of the fish.
Structure and Function - Fish | manoa.hawaii.edu…
Fish have two sets of paired fins: pectoral and pelvic (Fig 4.25). The pectoral fins are vertical and are located on the sides of the fish, usually just past the operculum (Table 4.7). Pectoral fins are similar to human arms, which are found near the pectoral muscles.
Fish anatomy - Wikipedia
Pelvic/Ventral fins: Found in pairs on each side ventrally below the pectoral fins, pelvic fins are homologous to the hindlimbs of tetrapods. They assist the fish in going up or down through the water, turning sharply, and stopping quickly.
Pelvic Fin - an overview | ScienceDirect Topics
They are used in swimming as an aerofoil, brake, propulsor, and rudder, for ground walking, and for hovering. At the same time, pelvic fins can be spined and used for protection, contain gases, and be used for floatation, sensory perception, camouflage, a holdfast organ, and …
The evolutionary history of the development of the pelvic fin…
The pelvic fins of lobe-finned fish are the evolutionary forerunners of the hindlimbs of tetrapods. The pelvic fins of lobe-finned fish are derived from the metapterygium of chondrichthyans and basal actinopterygian fish (Mabee, 2000; Raff, 2007).
Pelvic fin Definition & Meaning - Merriam-Webster
The meaning of PELVIC FIN is one of the paired fins of a fish that are homologous with the hind limbs of a quadruped.
Pelvic fin - Simple English Wikipedia, the free encyclopedia
Pelvic fins or ventral fins are paired fins located on the ventral surface of fish. In actinopterygians, the pelvic fin consists of two bony girdles attached to bony radials. The lepidotrichia are positioned distally from the radials. A pelvic fin's function is to provide powered corrective forces.
Pelvic fin locomotor function in fishes: three-dimensional …
2008年9月15日 · Early work that amputated pelvic fins concluded that these fins had very limited, and mainly passive, stabilizing function during locomotion. This paper is the first to use three-dimensional kinematic analysis of paired pelvic fins to formulate hypotheses of pelvic fin function.
The pelvic fin and girdle of - Nature
2005年12月22日 · Its pelvic fins (hind legs) are very important in understanding how fish climbed out of water and now for the first time a fossil with pelvic fin and supporting pelvis has been found.
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