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Cranium
- the Skull, part enclosing the brain
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Gill Arches
- Any of a series of bony or cartilaginous curved bars along the pharynx, supporting the gills
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Vertebral Column
- series of vertebrae forming the axis of the Skelton and protecting the spinal cord
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Cartilage
- firm, whitish, flexible connective tissue found in various forms in the larynx and respiratory tract
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- anatomical structure of certain male animals used in mating
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- which a sperm cell is united with an egg cell external to the bodies reproducing individuals
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- is done through copulation
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- is a sense organ in aquatic organisms, used to detect movement and vibration in surrounding water
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- one of two enlargements at the terminus of the olfactory nerve at the base of the brain just about the nasal cavities
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- A pair of fins situated on either side just behind a fishes head
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- denticles are body surface structures found on some fish and insects
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- Removes excess sodium and chloride ions from body
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- located on the underside of a fish behind the anus
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- The opening at the end of the alimentary canal though which solid waste matter leaves the body
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- Muscular-walled tubes forming part of the circulation system by which blood is conveyed from heart to all parts of the body
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- two upper cavities of the hear from which blood is passed to the ventricles
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- a bitter greenish-brow alkaline fluid that aids digestion and is secreted by the liver and stored in the gallbladder.
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- form a network between the arterioles and venules
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Cerebellum
- Part of the brain at the back of the skull in vertebrates
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- Principal and most anterior part of the brain in vertebrates
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- is a conical pouch formed form the upper and left angel of the right ventricle in the chordate heart.
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Countercurrent Flow
- a Current that flows in the opposite direction of the concurrent.
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- Each of twelve pairs of nerves that arise directly from the brain.
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- An unpaired fin on the back of a fish or whale.
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- Connects the throat to the stomach.
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- The small sac-shaped organ beneath the liver.
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- the whole alimentary canal from the mouth downward.
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- is involved in many metabolic processes
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- the probable ancestors of the amphibians.
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Lung
- oxygen can pass into the blood and carbon dioxide be removed.
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- lowest part of the brainstem and containing control centers for the heart and lungs.
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- A structure that closes or covers an aperture.
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- is a paired structure that forms a major component of the vertebrates midbrain.
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- a large gland behind the stomach that secretes digestive enzymes into the duodenum.
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- the skeletal framework that provides attachment for the forelimbs or pectoral fins, usually consisting of the scapulas and clavicles.
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- each of a pair of fins on the underside of a fishes body, attached to the pelvic girdle and helping to control direction.
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- The enclosing structure formed by the pelvis, providing attachment for the hind limbs or pelvic fins.
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- A fish of a large group having thin fins strengthened by slender rays, including all bony fishes apart from the coelacanth and lungfishes.
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- The first chamber of the heart in fish, amphibians, and reptiles, emptying into the right atrium.
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- produce or generate in large numbers.
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Spinal Nerves
- the term spinal nerve generally refers to the mixed spinal nerve.
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- The internal organ in which the first part of digestion occurs.
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- A gas-filled sac present in the body of many bony fishes.
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Urinary Bladder
- a sac that holds and stores urine for excretion.
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- A watery, typically yellowish fluid stored in the bladder and discharged through the urethra.
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Any of the tubes forming part of the blood circulation system of the body.
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- A hollow part of cavity in an organ.
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