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16 terms

Birds

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Type of heart a bird has
4-chambered
Air sacs
The oxygenated air inhaled by birds goes through the trachea and into these structures
Birds
These organisms share many characteristics with reptiles, like amniotic eggs and scales
Cerebellum
Part of the brain that coordinates movement and balance during flight
Contour feathers
Feathers that cover the body, wings and tail
Crop
Structure that stores food
Down feathers
Feathers that are soft, trap air and act as insulation
Endotherm
An organism that is able to generate its body heat internally by its own metabolism
Feathers
Structures that are specialized outgrowths of skin involved in flight and insulation
Gizzard
Structure that grinds food
Incubate
In the case of animals, to sit on eggs to keep them warm
Keratin
Fibrous protein that makes up feathers and hair
Medulla Oblongata
Part of the brain that controls automatic functions such as respiration and heartbeat
One-way circulation
Type of circulation in birds
Preen gland
Organ that secretes waterproofing oil for feathers
Uric acid
Wastes excreted by birds