Avian Internal Anatomy

Question 1

the accessory organs include

Answer 1

tongue, salivary glands, liver, gall bladder, and pancreas

Question 2

oropharynx

Answer 2

combined oral and pharyngeal space

Question 3

pharyngeal space

Answer 3

a joint area for the digestive and respiratory system

Question 4

the function of the hyoid apparatus is

Answer 4

strengths and supports the tongue

Question 5

hyoid apparatus is a complex of

Answer 5

cartilage and bone

Question 6

salivary glands secrete

Answer 6

mucin, bicarbonate, and water

Question 7

salivary glands do NOT secrete

Answer 7

salivary amylase

Question 8

the palatine cleft is a passage between

Answer 8

oral and nasal cavities

Question 9

infundibular cleft

Answer 9

remains open to permit pressure equalization in flight

Question 10

laryngeal cleft

Answer 10

closes to block food from entering the larynx

Question 11

T or F: the larynx contains vocal cords in the bird

Answer 11

false; does NOT contain vocal cords

Question 12

syrinx

Answer 12

responsible for vocalization in birds

Question 13

crop

Answer 13

feed storage area

Question 14

T or F: All avians don’t have a crop

Answer 14

true

Question 15

how many heart chambers do birds have?

Answer 15

4

Question 16

liver

Answer 16

processes nutrients and bile

Question 17

gall bladder

Answer 17

stores bile

Question 18

spleen

Answer 18

lymphocyte production and recycles RBCs

Question 19

proventriculus

Answer 19

secretes pepsinogen for protein breakdown, HCL, mucous, and gastrin

Question 20

what is the glandular stomach

Answer 20

proventriculus

Question 21

ventriculus

Answer 21

grinds feed; functions similarily to teeth

Question 22

small intestine

Answer 22

produces the enzymes enterokinase, carboxy-peptidase, aminopeptidase, maltase and sucrase; also bicarbonate

Question 23

the small intestine does NOT produce

Answer 23

lactase

Question 24

duodenum

Answer 24

receives bile and pancratic secretions; revies ingesta from the ventriculus; initiates intestinal digestion of protein and starch

Question 25

jejunum

Answer 25

digestion of protein and carbohydrates is fairly complete; absorption of amino acids, monosaccharides, calcium, and iron

Question 26

ileum

Answer 26

absorption of bile salts, water, electrolytes, and vitamin B12

Question 27

Meckels Diverticulum

Answer 27

Yolk stalk remnant; Marks juncture of jejunum and ileum; Lymphocyte production.

Question 28

Where is the pancreas found in avians

Answer 28

Duodenal loop

Question 29

pancreas

Answer 29

produces digestive enzymes and bicarbonate, and secretes insulin and glucagon.

Question 30

hepatic Portal System

Answer 30

Collects nutrients absorbed from the digested tract.

Question 31

The Large Intestine contains

Answer 31

Ceca and the colon.

Question 32

Chickens have how many ceca

Answer 32

two (2)

Question 33

Ceca

Answer 33

Microbial fermentation of residual starch and some cellulose; absorption of fermentation products (VFAs) and vitamins.

Question 34

T or F: birds have an appendix

Answer 34

False

Question 35

Colon

Answer 35

Absorption of fermentation products (VFAs) and vitamins.

Question 36

Cloaca

Answer 36

The juncture of the ureters, colon, and reproductive system.

Question 37

Bursa of Fabricius

Answer 37

Produces B-lymphocytes

Question 38

External Opening of Cloaca

Answer 38

Vent

Question 39

Where is reproductive urinary, and fecal material exit?

Answer 39

Vent