fish Flashcards
approximately 33 bones called vertebrae, which are separated by intervertebral discs
vertebral
embryonic structure in vertebrates that gives rise to most of the peripheral nervous system
Neural crest
external structure on fish that allows them to move
fins
fish have this instead of skin
scales
technical term for gill cover.
Operculum
part of the heart that receives deoxygenated blood from the veins of the body
Atrium
each of the two main chambers of the heart, left and right.
Ventricle
functional units in the kidney
Nephron
a visible line along the side of a fish consisting of a series of sense organs that detect pressure and vibration.
Lateral line
the process of a fish laying eggs
spawning
a gas-filled sac present in the body of many bony fishes, used to maintain and control buoyancy.
Swim bladder
a fish without a jaw like a lamprey
Jawless fish
class distinguished by having a skeleton of cartilage rather than bone
Cartilaginous fish
distinguished by a skeleton of bone, and comprising the majority of modern fishes.
Bony fish
dogfish
black dot on tail