External Anatomy

4. covert, smaller feathers that cover the base of the quills of the wing and tail feathers.
6. part of an animal's body just above the elbow of the foreleg.
7. extensions of the epidermal layer of skin modified to provide protection.
8. top of an animal's head
9. long projecting hairs or bristles growing near the mouth.
11. fleshy part of the beak that surrounds the nostrils.
13. transparent layer that covers the eye of a snake.
14. pad, part of the foot the animal walks on.
15. web of skin that allows the fish to move through water.
17. fleshy part of the side of an animal between the ribs and the rump/croup.
18. projecting jaw that contains the nose and mouth.
19. tarsal joint or large joint halfway up the hind limb.
21. upper rounded part of the hindquarter.
22. lower jaw or beak.

1. epidermal scales on turtles.
2. major organ of the respiratory system for fish that allows them to breathe without lungs.
3. feathers on the back of a bird.
5. ring encircling the eye.
10. loose fold of skin under the chin of an animal; most common in female rabbits.
12. coverts, feathers covering the ears.
16. joint above the hock in the hind leg.
20. top of the head.