Morphology of a turtle: reptile with an oval shell and a horned beak. It has a very short tail and four short legs, and moves very slowly.
Head turtles: foremost part of a tortoise which is attached to the trunk.
Neck: part of a tortoise between the head and the body.
Nuchal shell: hard plate that forms the shell of the tortoise close to the nape of the neck.
Vertebral shell: scale above the tortoises spinal column.
Costal shell: side scale.
Pygal shield: scale situated above the tail.
Tail: extension of the spinal column of a tortoise.
Nail: nail of a tortoise.
Hind leg: rearmost limb of the tortoise.
Marginal shell: each of the scales that form the edge of the tortoise's shell.
Front leg: foremost limb of the tortoise.
Mandible: lower jaw.
Mouth: entrance to the digestive tract.
Nostril: entrance to the respiratory system.
Eye: sight organ of the tortoise.