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Study Guide 5 Vocabulary
Study Guide 5 Vocabulary
11
Anatomy
Undergraduate 3
02/13/2013

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Term
Stapes (columella)
Definition
Stirrup; middle ear ossicle ("little column") that conducts sound waves from an eardrum to the capsule.
Term
Axis
Definition
Second cervical vertebrae, below the Atlas atthe top of the backbone. Rotates the head along a vertical axis.
Term
Atlas
Definition
The first vertebra; holds up the skull and rocks it to nod "yes."
Term
Labyrinthodont
Definition
Teeth having the enamel deeply folded to form a labyrinthine structure; can also refer to a group of large fossil amphibians of the late Devonian to early Triassic periods having such teeth.
Term
Tetrapods
Definition
Animals having four limbs
Term
Tetrapodomorph
Definition
Tetrapodomorpha is a clade of vertebrates, consisting of tetrapods (four-limbed vertebrates) and their closest sarcopterygian relatives that are more closely related to living tetrapods than to living lungfish.
Term
Sarcopterygii
Definition
Lobe-finned fishes; Fleshy, muscles within fin (humerus or femur)
Term
Lissamphibia
Definition
Lissamphibia is a biological subclass of animal that includes all recent amphibians.
Term
Anura
Definition
Frogs
Term
Urodela
Definition
An order of amphibians having the tail well developed and often long. It comprises the salamanders, tritons, and allied animals.
Term
Apoda
Definition
The caecilians, a small order of wormlike, legless animals in the class Amphibia.
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