A review of Fish Movement
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Transcript of A review of Fish Movement
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A review of Fish Movement A review of Fish Movement
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Remember Remember what each of the what each of the
fish fins or fin pairs fish fins or fin pairs does?does?
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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.
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A review of A review of Trout External Anatomy Trout External Anatomy
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Trout External AnatomyTrout External Anatomy
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AHHHHH, more review!AHHHHH, more review!
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Let’s continue Let’s continue
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INSIDE INSIDE the troutthe trout
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Internal Internal AnatomyAnatomy
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Remember: we learnRemember: we learn
What the part is called (What the part is called (NameName) )
Where the part is (Where the part is (LocationLocation))
What the part does (What the part does (FunctionFunction))
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Some internal parts of a fish are: Some internal parts of a fish are: StomachStomach EsophagusEsophagus HeartHeart LiverLiver IntestinesIntestines KidneyKidney Swim ( Air) bladderSwim ( Air) bladder Pyloric caecaPyloric caeca
(pn: (pn: Pie Low Rick See KahPie Low Rick See Kah)) Blood Vessels (veins and arteries)Blood Vessels (veins and arteries) BrainBrain ‘‘Ears’Ears’ Muscles**Muscles** Skeleton**Skeleton**
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Remember: The skeleton is really Remember: The skeleton is really part of the internal anatomy.part of the internal anatomy.
Muscles are too!Muscles are too!
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Trout Internal AnatomyTrout Internal Anatomy
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Where is the:Where is the:
KidneyKidney
Intestine Intestine
SpleenSpleen
Blood Blood vesselsvessels
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Where is theWhere is the
HeartHeart LiverLiver
Pyloric caecaPyloric caeca Stomach/ IntestineStomach/ Intestine
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The fish heart has 2-chambers.The fish heart has 2-chambers.
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What is this called? What is this called?
Air Bladder or Swim BladderAir Bladder or Swim Bladder
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Fish’s brain locationFish’s brain location
BrainBrain
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Trout brain (model) Trout brain (model)
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Do fish have ‘ears’?Do fish have ‘ears’?
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If they do, where are they?If they do, where are they?If they don’t, how do fish hear? If they don’t, how do fish hear?
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Fish’s Inner EarFish’s Inner Ear
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How the otolith worksHow the otolith works
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X-ray view of a fish’s “otolith” X-ray view of a fish’s “otolith” (‘ear stone’).(‘ear stone’).
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REVIEW! REVIEW!
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