Card Set Information
Terms for chapter 41
skull that protects the brain
Lampreys and hagfish
Fish that have elognated, eel like bodies, and they lack jaws, paird fins, and bone
Sharks, Rays, and Skates
They have paird fins and jaws. the skeloton is made of cartilage, not bone, and their skin is coverd by a unique kind of scale.
most familiar fishe, that all have jaws, and most have skelotons composed of bone.
their skin is thin and is premeable to gasses and water. Most species lay their eggs in water.
Their skin is dry and scaly.
All have hair and nurse their young with milk.
The skeletal elements that support the pharynx.
Lateral line system
A prominent adaptation innearly all fish.
Fertilixation of the egg occures outside the body.
A flexible lightweight material made of cells surrounded by tough fibers of protein.
Small, toothlike spines that feel like sandpapper.
Jut out of the body like the wings on a plane.
Were the information from the nostirals is analyzed.
a gland that removes ecess sodium and chloride ions from the blood and releases them into the rectum for elimination.
Fertilization in wich sperm fuses with the egg inside the females body
A structrue that trasfers sperm in the females body
The material that most fishes skelotns are made of
Lungs or swimm Bladder
Lungs are the internal respritory organs in wich gass is echanged between air and blood.
Swimm Bladder is a gas filled sac used to controll bouyancy.
What the skelotons of most fish are made of.
Lobe finned fishes
Have fleshy fins and are supported by a series of bones.
Ray finned Fish
have fins that are supported by long, segmented. flexibal bony elements called rays.
A hard plate that oppens at the rear and covers and protects the gills.
A fin that extends from the tail
Helps keep the fish upright
Helps the fish move in a straight line
Use them to navigate, stop or move up or down, and even back up
attachment point for the pectoral fins
attchment point for the pelvic points
Food goes through the esophagus to the stomach
Secreets acid and digestive enzymes that begins to break down food.
Were the nutriens are absorbed
Located next to the stomach and secreets bile
Helps breakdown fats
Stores bile and releases it into the intestine
Secreats digestive enzymes into the intestine
undigested material is eliminated
Thin walled vessels in the gills
the heart pumps blood through this
Deoxygenated blood from the bodie empties into a collecting chamber
speeds up the movment of the blood
Main pumping chamber of the heart
contains valves the prvent blood from flowing back into the ventrical
Allows more oxygen to flow through the gills
contains amonia ions such as chloride and sodium and water
Were it is stored and later expelled
Major snsory organs that are conected to the brain
Intregate sensory and other types of information from other ares of the brain
recievs and procces information such as visual and auditory
the most posterior division of the brain
Helps cordinate motor output
conect the spunal chord to internal organs