Avian 2.0

Question 1

a) How many cervical vertebrae in small birds and swans?
b) Name one ‘fused bone’ of the vertebral column

Answer 1

a) Small Birds - 8 & Swans - 25

b) Os Dorsale (Notarium)

Question 2

Name 2 parts of Ingluvies

Answer 2

• Ostium Ingluviale
• Fundus Ingluvialis

Question 3

Name 2 ornamental outgrowths of the skin on the head

Answer 3

• Comb
• Wattle

Question 4

Name 2 types of contour feathers

Answer 4

• Converts (Tetcrices)
• Flight Feathers of the Wing (Reminges)
• Tail (Rectrices)

Question 5

Give 2 examples of pneumatic bones in birds

Answer 5

• Humerus
• Femur

Question 6

Which bones articulate with the sternum in birds

Answer 6

• Os Coracoideum
• Ribs

Question 7

Write where a) notarium b) operculum in birds

Answer 7

a) 2nd - 5th Thoracic Vertebrae
b) Base of Beak

Question 8

Name 2 membranes dividing the body cavity (celoma) into 3 parts

Answer 8

• Septum Horizontale
• Septum Obliquum

Question 9

Name 2 openings located in the dorsal part of oropharynx

Answer 9

• Choana
• Rima Infundibuli

Question 10

Which intestines are separated by diverticulum vitelinum?

Answer 10

• Jejunum
• Ilium

Question 11

Name the pars of cloaca where a) ostium cloacale ductus deferentis b) bursa cloacalis opens

Answer 11

a) Urodeum
b) Proctodeum

Question 12

Name the longest part of avian oviduct and the part where the egg remains the longest time

Answer 12

Longest - Magnum
Egg remains longest in - Uterus Oviductus

Question 13

Name 3 lobes of the avian kidney

Answer 13

• Divisio renalis cranialis, media, caudalis

Question 14

Specify 3 main types of contour feathers

Answer 14

• Remiges
• Rectrices
• Tectrices