fish Flashcards
defines the animal subphylum Vertebra, or vertebrates, of the phylum Chordata
Vertebral Column
The neural tube expands in the head to form the brain and in the trunk to form the spinal cord
Neural crest
a flattened appendage on various parts of the body of many aquatic vertebrates used for propelling, steering, and balancing.
verb
Fin
a small rigid plate that grows out of the skin
Scale
a secreted plate that closes the aperture of a gastropod mollusk’s shell when the animal is retracted.
Operculum
heart chamber that receives blood into the heart and drives it into a ventricle, or chamber, for pumping blood away from the heart.
Atrium
a hollow part or cavity in an organ.
Ventricle
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.
Nephron
system of sensory organs found in fish, used to detect movement, vibration, and pressure gradients in the surrounding water.
Lateral line
release or deposit eggs
Spawning
The swim bladder is a gas-filled organ in the dorsal coelomic cavity of fish. Its primary function is maintaining buoyancy, but it is also involved in respiration, sound production, and possibly perception of pressure fluctuations
Swim bladder
no jaw
Jawless fish
skeletons primarily composed of cartilage.
Cartilaginous fish
a skeleton of bone, scales, paired fins, one pair of gill openings, jaws, and paired nostrils.
Bony fish
olive in color . The caudal fin is rounded. The dorsal fin is long and extends for more than half of the length of the body.
Bowfin/Dogfish