Avian Osteology and Integument Quiz

What is the function of the pneumatic bones in birds?

To connect with the air sacs of the respiratory system

Which bones make up the greater roof of the nasal cavity in birds?

Nasal bones

What is the primary function of medullary bones in birds?

To serve as an important source of calcium during egg laying

What is the purpose of the kinetic system in a bird's skull?

To allow primary axis movement while the jaw moves Signup and view all the answers

What role do contour feathers play in birds?

Facilitate insulation and waterproofing Signup and view all the answers

Where are the optic foramen located in a bird's skull?

At the caudal border of the interorbital septum Signup and view all the answers

What is the function of the wishbone in birds?

To support the shoulders during flight Signup and view all the answers

Which bone in the avian wing is the largest and extends the full length of the forearm?

Ulna Signup and view all the answers

How many phalanges does digit D11 in the avian wing have?

2 Signup and view all the answers

Which bone in the avian face is the largest?

Dentary Signup and view all the answers

What is the function of the quadrate bone in birds?

Permits extreme opening of the mouth Signup and view all the answers

Which bone articulates with the head of the humerus in the avian shoulder girdle?

Coracoid Signup and view all the answers

What is the main function of the turbinate bones in birds?

Regulation of body temperature Signup and view all the answers

In which group of birds do holorhinal external nares occur?

Anseriform and galliforms Signup and view all the answers

What is absent in the cranial group of birds?

Interparietal bone Signup and view all the answers

What do premaxillae form in birds?

Upper portion of the beak Signup and view all the answers