Shared Flashcard Set

Details

Bio204
Lecture 8 - Berta
7
Biology
Undergraduate 3
12/14/2010

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Cards

Term
Earliest Bird
Definition
-Archaeopteryx Lithographica
Term
Passive Flight
Definition
-Parachuting/Gliding
Term
Active Flight
Definition
-Use pectoral muscles and generate lift
-Only birds and bats
Term
Furcula
Definition
-Fused Clavicle found in birds
Term
Wing & Tail functions
Definition
Wing: Lift and support
Tail: Steering and landing control
Term
Bird Respiration
Definition
-One way flow of air
-Two cycles of respiration (Inhalation, exhalation) for vol air to pass through body
Term
Osmoregulation
Definition
-Nasal salt glands excrete excess salt from sea water
-Countercurrent exchange system: blood flows counter to flow of salt secretion which enhances salt transfer
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