Avian Applied Anatomy

Question 1

What limits abduction of the avian hindlimb?

Answer 1

the secondary articulation between the greater trochanter and the antitrochanter

Question 2

What condition can arsie in birds due to the “weak-link” following the notarium?

Answer 2

kinky back - the cranial end of the vertebrae is caudally displaced into the spinal cord

Question 3

What is the relevance of the location of the keel?

Answer 3

subcutaneous location = good for bone marrow sampling, but prone to injury (negative impact when grading poultry)

Question 4

Which side of the mouth should a crop needle for gavage feeding or oral medications be introduced?

Answer 4

approach from the left side of the beak to avoid perforating the esophagus

Question 5

What is the relevance of the location of cervical esophagus and crop?

Answer 5

subcutaneous location = palpable, easy access for foreign body surgery but also vulnerable to laceration

Question 6

What is a clinical consideration for the avian infraorbital sinus?

Answer 6

many diseases can cause exudate accumulation
opened/drained rostral and ventral to the eye where the infraorbital sinus is subcutaneous

Question 7

Why should IM injections of medication into the hindlimb/caudal body parts be avoided in the avian species?

Answer 7

medication will pass through the avian renal portal system and be filtered out before reaching the heart for general circulation