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A review of Fish Movement Remember what each of the fish fins or fin pairs does? Caudal (tail) fin-- provides thrust, and control the fish’s direction. Pectoral fins-- act mostly as rudders and hydroplanes to control yaw and pitch. Also act as brakes. Pelvic fins-- mostly controls pitch. Also act as brakes. Dorsal & anal fins-- control roll. A review of Trout External Anatomy Trout External Anatomy AHHHHH, more review! Let’s continue INSIDE the trout Internal Anatomy Remember: we learn What the part is called (Name) Where What the part is (Location) the part does (Function) Some internal parts of a fish are: Stomach Esophagus Heart Liver Intestines Kidney Swim ( Air) bladder Pyloric caeca (pn: Pie Low Rick See Kah) Blood Vessels (veins and arteries) Brain ‘Ears’ Muscles** Skeleton** Remember: The skeleton is really part of the internal anatomy. Muscles are too! Trout Internal Anatomy Where is the: Kidney Intestine Spleen Blood vessels Where is the Heart Liver Pyloric caeca Stomach/ Intestine The fish heart has 2-chambers. What is this called? Air Bladder or Swim Bladder Fish’s brain location Brain Trout brain (model) Do fish have ‘ears’? If they do, where are they? If they don’t, how do fish hear? Fish’s Inner Ear How the otolith works X-ray view of a fish’s “otolith” (‘ear stone’). REVIEW!