External Anatomy Of A Dogfish Shark

The patches of pores on the head in the areas of the eyes snout and nostrils are the openings of the ampullae of lorenzini. A pale line that extends the length of the shark.

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Lateral line a pale line that extends noticeably from the pectoral fin past the pelvic fin.

External anatomy of a dogfish shark. Such as liver gallbladder stomach pancreas etc. It helps with digestion like another animals would however. Water is taken in through the smaller opening and expelled through the larger opening.

Located caudal side of the pectoral fin pleuroperitoneal cavity holds all the organs in the abdonimal cavity. A pair of openings at the front of the head that function to detect chemicals in the environment. Dogfish shark external anatomy.

View from the side. Smaller dorsal fin stabilizes shark while swimming and prevents pitching caudal fintail fin divided into 2 lobes. The spiny dogfish has a double dorsal fin.

Gills sharks have gills on either side of their head. This line is actually a group of small pores which open into the underlying lateral line canal a sensory organ that detects water movements. A nasal flap separates the incurrent from the excurrent opening.

Water passes into and out of the olfactory sac permitting the shark to detect the odors of the water. The line is made up of a series of tiny pores that lead to receptors that are sensitive to the mechanical movement of water and sudden changes of pressure. These sense organs are sensitive to changes in temperature water pressure electrical fields and salinity.

A sharks sense of smell is unbelievably keen. The nares or external nostrils are located on the underside ventral surface of the rostrum anterior to the jaws. External and internal anatomy of a dogfish shark a cartilaginous fish.

For example they can detect a drop of blood hundreds of feet away. Since the sharks can only use their nose for smelling gills provide them a passage for them to breathe by absorbing oxygen from the water. A large dorsal lobe and a small ventral lobe.

3 list of the 5 fins of the dogfish shark 2 dorsal pectoral pelvic caudal the depressor of the pectoral fin allows the pectoral fins to lower. External anatomy of the dogfish shark. External anatomy of the dogfish shark.

They are located caudally from the mouth. The anterior dorsal fin is larger than the posterior dorsal fin. Some species of sharks have barbells otherwise known as whiskers near their nostrils.

Phylum chordata subphylum vertebrata class chondrichthyes. The nostrils of a shark are and external part of the shark anatomy and on the ventral side of their bodies.

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