Shark anatomy Flashcards
External nares (nostrils)
smell and helps detect chemicals
Spiracles
allows water to pass through gills
Mouth
water intake through gills & eating
Gill Slits
allows water to exit
Lateral Line
detects vibrations in water
Cloaca
releases waste and sperm, also opening for sex organs
Claspers
aid in sperm transfer during mating
Fins
Caudal Fin = propulsion
Dorsal Fin = stability
Pectoral Fin = steering
Pelvic Fin = stabilize and allow up & down movements
Dorsal Spines
has poison gland for defense
Ampullae of Lorenzini
(electroreceptor) detects electronic field changes
Scales
Denticles (made up of placoid scales) for protection & reduce turbulence so sharks swim quicker
Myomeres
muscles that allow lateral movements
Myosepta
connective tissues that connects myomeres together
Esophagus
connects pharynx to stomach
Stomach
aids in digestion