Veterinary avian anatomy Flashcards
birds’ phylogenic class
Aves
the comb
crista carnosa s. crista galli
wattle
palear s. lobus submandibularis
(dewlap)
the snood
proc. frontalis
is an erectile, fleshy process on the forehead of turkeys, may hang over their beak
beak or bill (give 2 alt names)
rostrum; rhamphotheca
upper bill
rostrum maxillare; [rhinotheca]
lower bill
rostrum mandibulare; [gnathotheca]
claw (toe claw)
unguis digiti pedis
claws on the digits of the wing
unguis digiti alulae
spur
calcar metatarsale
The tarsometatarsus is covered by a horny sheath called?
podotheca
large scales of the podotheca are called?
and small ones?
The largest scales are called scutes,
with smaller ones termed scutella
describe avian temperature regulation
birds have no sweat glands, so temperature regulation is largely achieved by evaporative cooling from the respiratory tract and through their skin
3 alt. names for the uropygial gland
preen gland
oil gland
gl. uropygialis
is a bilobate sebaceous gland possessed by the majority of birds
located dorsally at the base of the tail
define patagium
patagium is a feathered double layer of triangular skin fold one of which, runs from the upper arm to the lateral thoracic wall
and the second, stretches between of the upper and lower arm. The patagium contains an elastic membrane, which help to return the wing to its resting position, and is essential for producing aerodynamic lift
Feathers
pennae
Contour feathers
& define
penna contorna
are the outermost and most prominent feathers. They provide the color and the shape of the bird.
translate
areas with feathers &
the bare areas devoid of feathers
feathered areas = pterylae
bare areas = apterae
flight feathers, 2 names
penna volatus
&
remiges
are divided into primaries (on the manus) and secondaries on the antebrachium (ulna)
What are helm feathers?
The flight feathers on the tail are helm feathers (latin = rectrices)
translate and define covert feathers
tectrices
are smaller contour feathers which cover most of the wing and tail.
They are found at the base of the remiges (flight feathers) and rectrices (helm feathers) and over the ear; the coverts help to smooth airflow over the wings and tail
translate and define feather shaft (2 alt. names)
quill or calamus pennae
is the smooth, non-colored end of the feather shaft, which extends under the skin to the folliculus
2 alt. names for feather shaft
rachis (eng)
or
rhachis pennae (lat)
any of the shaft not covered by skin/in the follicle (that is the calamus)
translate & define feather barbs
barbae pennae
are stiff filaments, which come off the rachis (feather shaft) at a 45-degree angle. are literally the feather bits.