The gills are the respiratory organs of the shark. Start studying dogfish shark heart.
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It ranges from the bay of fundy to uruguay.
Dogfish shark heart. Sharks have a two chambered heart with an atrium also called the auricle and a ventricle. Make a shallow cut just inside the teeth and peel the skin off by flaying it. The chin was cut across the ventral musculature to free the lower jaw and peal it to one side.
They are pink and usually well injected. Learn vocabulary terms and more with flashcards games and other study tools. You will have to go well down the pharynx to the place where the arteries meet.
Bottom of waterways enclosed bays western atlantic ocean. The heart of fish have two chambers. Respiratory anatomy of the dogfish shark.
The heart is an s shaped tube that is located in the head region of the shark. The blood is pumped by the heart through the afferent branchial arteries ventral aorta to capillaries in the gills where the blood is oxygenated. It is a common shark in the waters off cape cod to delaware bay and overwinters from chesapeake bay to south carolina.
The specimen in the photograph was prepared by cutting across the gill slits from the pectoral girdle to the corner of the mouth. Dogfish heart and aortic arches. The heart of mammals have four chambers.
To expose the blood vessels first skin the roof of the mouth where the efferent efrom branchial arteries are located. The heart of reptiles and amphibians have three chambers. Scavenger and opportunistic feeder but regularly feeds upon crabs lobster and shrimp.
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