Ch 22 Birds

Question 1

air sacs

Answer 1

upper resp tract

• store air and provide buoyancy for flight

Question 2

syrinx

Answer 2

voice organ at tracheal bifurcation

Question 3

beak

Answer 3

covers rostral maxilla and mandible

Question 4

choana

Answer 4

caudal naris/cleft in hard palate (curve at tips of beak)

Question 5

spur

Answer 5

sharp horn-covered bony projection in shank of some male birds

Question 6

wattle

Answer 6

appendage suspended from chin

Question 7

cloaca

Answer 7

common passage for fecal, urinary, and reproductive system

Question 8

crop

Answer 8

esophageal enlargement that stores and softens food

Question 9

proventriculus

Answer 9

elongated glandular stomach

Question 10

vent

Answer 10

cloaca opening

Question 11

ventriculus

Answer 11

gizzard (muscular stomach)

Question 12

keel

Answer 12

breastbone

Question 13

pygostyle

Answer 13

bony termination of vertebral column where tail feathers attach

Question 14

brood

Answer 14

young that are hatched at same time

Question 15

candling

Answer 15

shining a light through egg to check embryo development

Question 16

comb

Answer 16

vascular, red cutaneous structure attached to top of skull

Question 17

clipping/pinioning

Answer 17

trimming wings to alter flight

Question 18

fledgling

Answer 18

young bird with flight feathers but not eating on own

Question 19

lume

Answer 19

body/flight feather

Question 20

pteryla

Answer 20

primary wing feathers

Question 21

feathering

Answer 21

casting off feathers before replacement feathers appear

Question 22

columbiformes

Answer 22

large flightless birds used for meat

Question 23

ratites

Answer 23

finches

Question 24

passeriformes

Answer 24

cockatiels, doves

Question 25

scleral ring

Answer 25

stick caged bird sits on

Question 26

bristle

Answer 26

feather with blood supply

Question 27

yolk tendon

Answer 27

holds yolk to center of egg

Question 28

wishbone

Answer 28

carpus

Question 29

diverticulum

Answer 29

external opening of cloaca

Question 30

rachis

Answer 30

developing feathers w/blood flow that can grow as new feathers/replace molted feathers

Question 31

brooders

Answer 31

chickens for egg production

Question 32

coprodeum

Answer 32

feces + urine

Question 33

uropygial

Answer 33

preen gland

Question 34

urodeum

Answer 34

area of the cloaca in which the ureters and vagina open

Question 35

remiges

Answer 35

primary wing feathers

Question 36

cere

Answer 36

thickened skin at base of external nares of birds

Question 37

layer

Answer 37

chicken raised for egg production

Question 38

chalaza