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Birds

Laboratory Animals and Exotics

QuestionAnswer
anisodactyl the foot shape of passerines; three toes point forward and one toe points to the rear
apteria featherless areas of bird skin between feather tracts
choana the V-shaped notch in the roof of the mouth in some species that provides communication between the nasal cavity and oropharynx
cloaca in birds, reptiles, and amphibians, the terminal end of the urinary, reproductive, and gastrointestinal tracts
coverts smaller feathers that cover the remiges and rectices of birds. They are for covering the body and play no role in flight
crop In birds, an outpocketing of the esophagus; the outcropping or dilation of the esophagus located at the base of the neck, just cranial to the thoracic inlet
gizzard muscular stomach in birds that grinds food into a digestible form
heterophil a leukocyte of avian, reptile, and some fish species containing prominent eosinophilic granules; functionally equivalent to the mammalian neutrophil
passerines one of the most common exotic companion animal seen in veterinary practices; canary and finch
pododermatitis an inflammation of the ball of the foot of birds, guinea pigs, and other small animal; usually caused by infection with staphylococcus spp.
proventriculus true stomach; unique to birds; contains digestive acid and enzymes
psittacines one of the most common exotic companion animals seen in veterinary practices; cockatoo, macaw, parrot, conure, budgerigar, lovebird, cockatiel, parakeet, lorikeet
pterylae the feather tracks on the skin of birds; specific tracts located on the surface of the body where feather follicles are located
remiges contour feathers found on the wing of a bird
sexually dimorphic refers to species in which the male and female differ in appearance
syrinx enlargement of the trachea above the sternum. Contains muscles, air sacs, and vibrating membranes that collectively form the voice box of birds.
urates the end product of nitrogenous waste production from the liver; excreted by the kidney as a pasty white to yellow material found in droppings of birds and reptiles
uropygial gland in the bird, an oil-producing gland, also called the preen gland, used to waterproof feather; a bilobed gland with on duct opening that empties into a line papilla, found dorsally at the base of the tail; secretes a lipoid sebaceous material.
zygodactyl the foot shape of psittacines; the second and third toes face forward and the first and fourth toes are directed backward.
coelom a body cavity; in birds and reptiles, the coelom makes up the thoracic and abdominal cavities.
ventriculus gizzard; a thickly muscled organ that grinds food into smaller particles
Created by: spoitevint