perch lab practical Flashcards
Head
anterior end of fish
eyes
responsible for recieving visual stimuli
nares
fish’s sense of smell
just above mouth
mouth
has a hinge jaw to eat
operculum
covers/protects soft gills
Pectoral fin
paddle like - helps change directions while swimming ones on side of fish PECKS - CHEST
Anterior and Posterior Dorsal Fin
both serve as rudders for stability while swimming
fins on top
anterior closer to head
posterior closer to tail
Caudal Fin
fin to propel fish
BACK FIN
Anal and Pelvic Fin
stability in swimming
both at the bottom
anal where but would be close to tail
and pelvin where pelvis would be
Lateral Line
sensory organ that allows perch to feel pressure, movement, and vibrtion run across perch
Gills
water passes over gills in respirtation
Esophagus
moves food torward remainder of digestive tract
connected to stomach
Stomach
where food is chemically and mechanically digested
Pyloric Caeca
finger-like projections
Intestine
for nutrient absorption that send digestive enzymes into intestine
Rectum
remaining waste from digestive nutrients stored here
Anus
exit for digestive waste
Spleen
creates/destroys red blood cell
Pancreas
regulates blood glucose levels by creating enzymes / secreting them to digestive tract
Liver
makes bile
Kidney
filters blood and liquid waste and send to bladder
Urinary Bladder
stores urine
Air Bladder
provide buyoncy when needed
Urogenital Opening
exit for liquid waste and reproductive cells
Testes
creates sperm in mating
Ovary With Eggs
release eggs during mating
