Fish Flashcards
Vertebral column
series of vertebrae that extend from the cranium to the coccyx, and serves as a flexible bony case for the spinal cord
Neutral crest
group of embryonic cells that separate from the neural plate during neurulation and migrate to give several different lineages of adult cells
Fin
membranous, winglike or paddlelike organ attached to any of various parts of the body of fishes and certain other aquatic animals, used for propulsion, steering, or balancing
Scale
is a small rigid plate that grows out of an animal’s skin to provide protection
Operculum
bony plate that covers and protects the gills of most bony fishes
Atrium
thin-walled chambers of the heart that pump blood into the ventricles.
Ventricle
hollow area or cavity within an organ, usually filled with some kind of fluid
Nephron
regulate the concentration of water and soluble substances like sodium salts by filtering the blood, reabsorbing what is needed and excreting the rest as urine or known as the kidney
Lateral line
ense organs found in aquatic vertebrates, used to detect movement and vibration in the surrounding water
Spawning
process of releasing the eggs and sperm
Swim bladder
oxygen filled organ or air sack
Jawless fish
true fish or finfish
Cartilaginous fish
having a skeleton consisting mainly of cartilage rather than bone, and including the sharks, skates, rays, and chimaeras.
Bony fish
having a skeleton that is completely made of bone, rather than partially or completely made of cartilage
Devonian period
characterized by the development of lobe-finned fishes, the appearance of amphibians and insects, and the first forests
