Avian Anatomy Flashcards
1
Q
Vertebral formula
A
C14 T7 L-S14 Cd6
Chicken
2
Q
S shape of neck
A
Esophagus and trachea are shorter than vertebrae
Allows flexibility in flight and locomotion over ground (center of gravity)
3
Q
Thoracic vertebrae are
A
fused
4
Q
Ribs
A
Uncinate processes (support movement of ribs together) Osseus sternal rib (in mammals is cartilage)
5
Q
Sternum
A
Keel- supplies support for abdominal viscera and house main two flight muscles (superficial and deep pectorals)
6
Q
Forramen triosseum
A
Allows tendon of deep pectoral to attach on the opposite side of humerus
7
Q
Tendon of extensor carpi radialis
A
Can be cut to render bird flightless (can’t fully extend wing)
8
Q
Adaptation of skull
A
No premaxillary bone
Craniofacial hinge (upper jaw)
Articulating joint in mandible (allows for swallowing things larger than mouth)
Sclerotic ring
