Fish Anatomy: Wonderful List of 17 External Parts of A Fish

Fish anatomy! How many parts of the fish can you learn? Here, we provide a list of 12 external parts of a fish in English with picture. This list could be useful for your English vocabulary about animals.

Fish Anatomy

The body of the fish is protected by a thin but hard coat of overlapping scales and a coating of slime.

Parts of A Fish

  • Dorsal fins
  • Spiny
  • Soft-rayed
  • Lateral line
  • Scales
  • Nostril
  • Mouth
  • Eye
  • Pectoral fin
  • Pelvic fin
  • Anal fin
  • Caudal fin
  • Gill
  • Teeth
  • Caudal peduncle
  • Vent
  • Operculum

Examples of Fish Anatomy

  • When stocking a pool with fish, take care to select healthy individuals with the firm, meaty bodies, and erect dorsal fins.
  • This lateral line system enables the fish to detect differences of pressure in the water.
  • The overlapping slates of the roofs in the mountain village resembled fish scales.
  • When the heart is afire, some sparks will fly out at the mouth.
  • What the eye doesn’t see, the heart doesn’t grieve over.
  • The prehensile pectoral fins actually grasp the weed as the fish moves about.
  • The pectoral and pelvic fins and the dorsal along the crest of the back play no part in propulsion.
  • Old World freshwater catfishes having naked skin and a long anal fin more or less merged with the eellike caudal fin.
  • The fish to be cleaned hang motionless in the water, gill covers open and fins spread, waiting for attention.

Fish Anatomy Infographic

Fish Anatomy

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