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my ornithology flight
flight
15
Biology
Undergraduate 4
02/07/2019

Additional Biology Flashcards

 


 

Cards

Term
What principles do birds depend on to fly
Definition
Thrust and lift to overcome
drag and gravity
Term
what bird spend most of it life on the wing?
Definition
Swift Apus apus
Term
flight maneuvers are made by
Definition
morphing their wing shape
maximum lift is outstretched wings of long thin wings but are for slower speeds and shallow turns
swept back allows for minimum drag and sharp turns but without lift
Term
talk about what happens after the wing splits the air in flight
Definition
the air then moves backward. the round surface on top, compresses and speeds the the air flow .. the concave on the bottom slows the air .. making a pressure differential giving lift.. thrust and lift depend on the angle of the wing relative to the stream of air flow.
Term
Dynamic soaring wings
Definition
long and narrow albatross , petrel and shear waters glide at speeds
Term
Elliptical wings
Definition
broad and rounded for short burst and high maneuvering like woodland species bats robins and sparrows ..minimize drag
Term
high aspect ratio
Definition
High speed wings – found on swallows, falcons, shore birds, and ducks. Birds that feed on the wing or make long migrations. The bones are relatively long, and the wings taper to a point to allow for high flight speed with low drag, and low energy consumption during flight
Term
high lift ratio
Definition
broad and fingered like vultures, condors, hawks, ospreys, pelicans and eagles. ride on air currents soaring to the top and riding down. albatross and petrel...allow them to soar but limit maneuverability .. These wings are broad and only relatively long, allowing for takeoff and landing in fairly confined areas, high lift, low speed soaring, and slow descents
Term
Adaption for flight
Definition
forelimbs are air foils
strong, rigid, light skeleton with hollow bones
coracoid bone to support the shoulder
deep keel
big strong flight muscles of the pectorals and supra coracoideus
high efficiency resp system lungs, air sacs and hemoglobin with high affinity for oxygen
modification of bone with fused hand bone locking joint and wrist that can rotate almost fully
the furcula a spring during the wing bet
Term
where is most of the lift?
Definition
the secondaries
tilt the wing up increases lift but also drag and can stall when > 15 degrees
Term
where is the thrust?
Definition
mostly the primaries .. asymmetrical
pushing down they are solid .. going up they open
Term
where is the thrust?
Definition
mostly the primaries .. asymmetrical
pushing down they are solid .. going up they open
Term
the thumb is
Definition
alular
Term
on the way to the thumb is the hand that is the
Definition
caprometacarpus
Term
In birds, the _______ is the elastic fold of skin extending from the shoulder to the carpal joint, making up the leading edge of the inner wing.
Definition
propatagium on top and metapatagium on the bottomm
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