Webb19 dec. 2016 · Gills. All sharks have five to seven pairs of gills on the side of the head. Gas exchange occurs at the gills and oxygenated water must always be flowing over the gill filaments for respiration to occur. Water enters through the mouth of the animal, into the pharynx, over the gills and exits through the gill slits. Webb10 apr. 2024 · They are the fastest shark in the world, regularly reaching speeds of 45 mph. Mako Shark: Appearance. Makos are mackerel sharks that reach impressive lengths. Males grow to about nine feet and females up to 14 feet. They are powerfully streamlined fish with pointed faces and muscular tails that enable them to kill some of the fastest …
Shark Anatomy The Shark Trust
WebbMost fishes exchange dissolved oxygen and carbon dioxide in water using gills which lie behind and to the side of the mouth cavity. The circulatory system consists of the heart, arteries, capillaries, and veins. The heart pumps the blood to the gills to be re-oxygenated. From there, blood is distributed to the tissues and organs of the body. WebbGills usually consist of thin filaments of tissue, branches, or slender tufted processes that have a highly folded surface to increase surface area. The high surface area is crucial to the gas exchange of aquatic organisms as water contains only a small fraction of the dissolved oxygen that air does. cistern\\u0027s 8c
Fish - Respiratory and circulatory systems Britannica
Webb29 maj 2013 · Other sharks use ram ventilation; that is, they ventilate their gills by swimming very fast with their mouths open. Some sharks, such as the tiger shark, can … Webb27 mars 2024 · Pool Shark A muscular Great White shark with an 8-ball for his eye, ready to take on the world in a game of pool. shark gills stock illustrations Pool Shark A … WebbThis branchiomeric muscle becomes the muscles of the jaw, hyoid arch and gills. It is innervated by somatic sensory, visceral sensory and visceral motor nerves, all from the dorsal roots. These dorsal nerves in the first three segments are the nerves passing through the orbit of the eye to serve the branchiomeric muscles of the head, jaws and … cistern\u0027s 8i