They are called gills!
Sharks typically have 5 to 7 pairs of gill slits located on the sides of their bodies. These slits are used for obtaining oxygen from the water to breathe.
Gill slits in sharks and rays help to funnel water into the gills, which empty into the pharynx and eventually the lungs.
An older name of sharks, which means laterally placed gill-slits.
by the gill slits
The openings in the throat region of a fish that lead to the gill chamber are called gill slits. These slits allow water to flow over the gills so that oxygen can be absorbed and carbon dioxide can be released.
A bull shark has five gill slits on each side of its body, totaling ten gill slits. These gill slits are essential for respiration, allowing the shark to extract oxygen from the water as it swims. Bull sharks, like other shark species, rely on constant water flow over their gills for effective breathing.
A leopard shark has five gill slits on either side of its body. The gill slits are on the sides of the shark's head.
sharks have to swim at all times. if they stop moving, no oxygen can pass through its gill slits for the shark to breathe.
No, sharks do not have an operculum. Opercula are bony plates that cover the gills of bony fish to help with breathing, but sharks breathe through gill slits located on the sides of their bodies.
"Jaws are believed to have evolved from the first pair of gill arches of agnathans. The second pair of gill arches became support structures for the jaws." - Biology Laboratory Manual, Ninth Edition Darrel S. Vodopich and Randy MooreSo, sharks have fewer gill slits because the first two pairs became the jaw and the structural support for the jaw.
They are fish with no bones, no swim bladder, no scales, and have 5 to 7 open gill slits. These fish include sharks, rays, etc.
Chordates are the organisms that have a rod like cartilagenous structure called notochord which gives rise to nervous system. These have pharyngeal gill slits. Nonchordates are the organisms that do not have a notochord. These do not have pharyngeal gill slits.