Introduction & Observation of a Shark

Abstract: The lab was an introduction of the external anatomy of the shark under visual observation. Introduction: Sharks are mostly marine fishes, and some live in fresh water. Their fins have different functions such as lift, propulsion, and stabilizing. There are one or two fins present along dorsal midline called first and second dorsal fin. If the spin is the orgin, it is mainly then used for defense. Pectoral fins start from behind the head …

…View: Ventral View: Materials/Methods: Dogfish Shark Dissection kit Dissecting tray Gloves Discussion: In this lab, the students learned were the eyes, teeth, mouth, two dorsal fins and two pectoral fins and a tail are located. Then understood the certain views, lateral,anterior,posterior, and dorsal. This crucial because then it help understand the observation of the shark. Certain dissections will indicate the exact positions; the students must know how to differentiate from each view.