Fish Flashcards
Vertebral Column
The skeleton, which forms the support structure inside the fish, is either made of cartilage, in cartilaginous fish, or bone in bony fish. The main skeletal element is the vertebral column, composed of articulating vertebrae which are lightweight yet strong.
Neural crest
a temporary group of cells unique to chordates of the group Cristozoa
Fin
swim underwater by means of flippers.
Scale
each of the small, thin horny or bony plates protecting the skin of fish and reptiles, typically overlapping one another.
Operculum
technical term for gill cover.
Atrium
each of the two upper cavities of the heart from which blood is passed to the ventricles. The right atrium receives deoxygenated blood from the veins of the body; the left atrium receives oxygenated blood from the pulmonary vein.
Ventricle
a hollow part or cavity in an organ, in particular.
each of the two main chambers of the heart, left and right.
each of the four connected fluid-filled cavities in the center of the brain.
Nephron
each of the functional units in the kidney, consisting of a glomerulus and its associated tubule, through which the glomerular filtrate passes before emerging as urine.
Lateral line
a visible line along the side of a fish consisting of a series of sense organs that detect pressure and vibration.
Spawning
release or deposit eggs.
Swim bladder
a gas-filled sac present in the body of many bony fishes, used to maintain and control buoyancy.
Jawless fish
No upper jaw
Cartilaginous fish
fish that have skeleton made of cartilagerather than bone
Bony fish
diverse group of fish that have skeletons composed of bone
Bowfin/Dogfish
greenish-brownish fish with a long dorsal fin and a spot