Zoo ch. 17,18,19

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Terms in this set (...)

Lateral line
System of sensory pits along the side of a fish that detects changes in water pressure
Atriopore
Opening from the atrium to the outside of the body
Urodela
Order including the newts and salamanders
Cutaneous
Respiration; gas exchange through the skin
Pyloricceca
Out pockets of the intestine which increased adsorptive and secretory surfaces
Hepatic sacs
Diverticula of the gut where digestion takes place
Urostyle
Added bone to the pelvis of anurans that stiffens the pelvis
Notochord
Flexible rod the length of the body that allows for muscle attachment and protects the nerve cord
Epidermal teeth
Line the mouth and cover a movable tonguelike structure of lampreys
Apoda
Without legs; caecilians
Placoid
Scales that face posteriorly making skin tough and reduces friction
Castings
Coils of fecal material
Cavior
Eggs of sturgeon served as food
Operculum
Gill cover helps to draw water over gills
Abscivation
Dormant state that helps an animal withstand hot, dry periods
Pneumonic sacs
Gas filled chambers that act as lungs or swim bladders
Nephrons
Excretory structures of the kidney
Atrium
Cavity that surrounds the pharynx laterally and dorsally
Ramventilation
Method of forcing water over gills by swimming with mouth open
Vocal sacs
Modification of the mouth cavity that resonates and increases the volume of sounds
Craniates
Organisms that have skulls that surround the brain, olfactory organs, eyes, and inner ear
Endostyle
Ciliated cells that produce a mucus sheet used to trap food particles
Spawning
Reproductive activity during which males and females travel to a specific location to build nests and reproduce
Buccal pump
Movement of air into the lungs using the mouth and pharynx
Pharyngeal arches
Provide skeletal support for the pharyngeal slits
Swim bladder
Gas filled sac along the dorsal wall of the body cavity that regulates buoyancy
Capillaries
Smallest blood vessels where gas exchange takes place
Tympanic
Membrane; eardrum
Semicircular canal
Detects rotational movement, equilibrium, and balance
Nictitating
A type of membrane; transparent eyelid
Glomerulus
Series of blood sinuses where excretory wastes are removed
Electro reception
Detection of electrical fields produced by nerves and muscles
Aillrakers
Long gill processes that trap plankton while the fish swims with it's mouth open
Venomous spine
Modified tail of sting rays with specialized placoid scales
Stolon
Rootlike extensions of the tunic
Osmoredulation
Regulation of water ions
Tunic
Tough, connective tissue like body wall of tunicates
Post anal
Location of the tail in chordata
Amplexus
Positions the male frog on the female for reproduction