Practice Exam(Exam 1) Flashcards
Myomere
W-shaped bundles in each body segment//ORGANIZED LATERALLY ON THE BODY, originate and insert on vertebral elements and body wall, respectively
Hemal Arch
Bony arch on the underside of a tail vertebra
Condition Factor
Fulton’s condition factor, K, is another measure of an individual fish’s health that uses standard weight to length ratio
Chloride Cells
cells in the gills of teleost fishes which pump excessive sodium and chloride ions out into the sea against a concentration gradient.
Chondrichthyes
class that contains the cartilaginous fishes: jawed vertebrates with paired fins, paired nares, scales, a heart with its chambers in series, and skeletons made of cartilage. The class is divided into two subclasses: Elasmobranchii (sharks, rays, skates, and sawfish) and Holocephali (chimaeras”
lepidotrichia
bony, bilaterally-paired, segmented fin rays found in bony fishes. They develop around actinotrichia as part of the dermal exoskeleton;
Placoid Scales
found in the cartilaginous fishes: sharks, rays, and chimaeras; more like tiny teeth
dorsal aorta
carries oxygenated blood posterior
choroid rete
counter-current exchanger near the eye
Osteichthyes
Boner fish.. ergh i mean bony….
Chondrichthyes
cartilaginous fish
pars superior
inner ear, balance and position
______ are blood cells that contain hemoglobin
erythrocytes
______ blood cells involved in immune response.
leukocytes
_____ scales are found in ancestral bony fishes such as gars. Scales are much reduced in more derived teleosts.
ganoid scales
The ________________ is the portion of the brain associated with smell sensitivity. Its size is correlated to the reliance on smell.
Olfactory
______ predators are characterized by a torpedo-shaped body and posterior placement of unpaired fins.
Ambush
True or False:
“Salting out” causes changes in oxygen affinity of hemoglobin.
Truuuuuuuueeeeeeeee
Who founded the Museum of Southwestern Biology Division of Fishes.
William J. Koster
Where do Catadromous fish
live/reproduce?
Catadromous fishes hatch or are born in marine habitats, but migrate to freshwater areas where they spend the majority of their lives growing and maturing. As adults they return to the sea to spawn. The word “catadromous” means “downward-running,” and refers to the seaward migration of adults.
