Dogfish Shark External Anatomy

Phylum chordata subphylum vertebrata class chondrichthyes. The spiny dogfish has a double dorsal fin.

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Water taken in by the mouth and spiracles is passed over the internal gills and forced out by way of the gill slits.

Dogfish shark external anatomy. External anatomy the shark has a graceful and streamlined body shape built for fast long distance swimming. This line is actually a group of small pores which open into the underlying lateral line canal a sensory organ that detects water movements. Such as liver gallbladder stomach pancreas etc.

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. Most sharks have five external gill slits located on thire sides behind the mouth and in front of the pectoral fins. The body is divided into the head trunk and tail.

All members of the lab group should touch the shark. Nostrils and sense of smell the nostrils of a shark are and external part of the shark anatomy and on the ventral side of their bodies. The spines carry a poison secreted by glands at their base.

External anatomy of the dogfish shark. The anterior dorsal fin is larger than the posterior dorsal fin. Digestive anatomy of the dogfish shark a smooth shiny membrane called peritoneum can be seen lining the inside of the body wall.

High high school and college sdpb. Learn vocabulary terms and more with flashcards games and other study tools. Lateral line a pale line that extends noticeably from the pectoral fin past the pelvic fin.

Shark dissection instructions part 1. Located caudal side of the pectoral fin pleuroperitoneal cavity holds all the organs in the abdonimal cavity. Best dogfish shark dissection.

A third lobe much shorter lobe contains the green gall bladder along its right edge. They are located caudally from the mouth. The liver largest organ 3 lobes two main lobes the right and left lobes extend from the length of the cavity.

The spiny dogfish has the presence two spines one immediately in front of each dorsal fin. External anatomy of the dogfish shark. Part i external jr.

Pick it up squeeze it feel it. Dogfish shark external anatomy. Start studying external anatomy of spiny dogfish shark.

The shark anatomy allows them to see in dim light they can detect the contrasts of light and shadow and their pupils can dilate and contract. External and internal anatomy of a dogfish shark a cartilaginous fish.

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