Ampullae of Lorenzini, found in several basal groups of fishes, are jelly-filled canals connecting pores in the skin to sensory bulbs. They detect small differences in electric potential between their two ends.

2011年5月1日 · Most sharks have keen senses that allow them to track prey, predators, and mates at varying distances. At close range, they also rely on a network of sensors known as ampullae of Lorenzini, named for the Italian scientist …

An ampulla (/ æmˈpʊlə, - ˈpʌl -/; [1] pl.: ampullae) was, in Ancient Rome, a small round vessel, usually made of glass and with two handles, used for sacred purposes.

The ampullae of Lorenzini (Figures 3.15 and 3.37) are modified parts of the lateral line system (see later) and primarily sensitive to electrical fields (they can help a shark sense prey by detecting the electrical fields generated by activities of the prey). They form a series of tube-like structures just beneath and parallel to the skin.

The meaning of AMPULLA is a glass or earthenware flask with a globular body and two handles used especially by the ancient Romans to hold ointment, perfume, or wine.

The ampullae of Lorenzini are a network of jelly-filled pores located on the snout and head of sharks, skates, and rays. Named after Italian scientist Stefano Lorenzini who discovered them in 1678, they act like an electrosensory system – allowing these animals to detect electrical fields produced by prey and predators.

2025年2月23日 · Ampullae of Lorenzini (sg.: ampulla) are electroreceptors, sense organs able to detect electric fields. They form a network of mucus -filled pores in the skin of cartilaginous fish (sharks, rays, and chimaeras) and of basal bony fishes such as reedfish, sturgeon, and lungfish.

any small vesicle or sac-like offshoot, particularly the dilation at the end of the semicircular canal of the EAR, which houses sensory epithelium and is concerned with balance; See CRISTA AMPULLARIS.

2015年12月4日 · Ampullae of Lorenzini are a network of electroreceptors, sensory organs that detect electric fields in water, found in chondrichthyes (sharks, rays, and chimaeras). The ampullae are a series of symmetrical pores, concentrated around the snout and nose, connected by gel-filled canals.

2020年3月24日 · In most electrically sensitive fish species, the sensors (called external pit organs in teleosts and ampullae of lorenzini in elasmobranchs) are located on the animal’s head. However they may also be scattered over the body, or along the lateral line.