Turtle Shell Anatomy
Turtle shell is covered with bony scales also called scutes. The carapace and plastron are bony structures that usually join one another along each side of the body creating a rigid skeletal box.
The shells are either oval or heart shaped and are very hard except the leatherback species which has a soft leathery tissue and a set of bony plates beneath it.
Turtle shell anatomy. Turtle shell anatomy scutes turtles are reptiles whose protection comes from a shell. The plastron or ventral part of the shell is the lower area of the turtle and it has a light yellow color and a thinner and more sensitive tissue. This box composed of bone and cartilage is retained throughout the turtles life.
That basically means that the turtle cant leave the shell. Box turtles have a hard shell that protects their organs. Including the backbone and the ribs.
The top part of the shell the carapace is a dome made from the actual back bones and ribs which have expanded and fused together. This provides room for the lungs to expand. The shell is composed of hard bone plates covered by scutes.
The turtle shell is made up of numerous bony elements generally named after similar bones in other vertebrates and a series of keratinous scutes which are also uniquely named. A turtle shell is made of two parts. Both are covered with scutes.
On the turtles side plastron and carapace are joined together with bony structures called bridges. A turtles shell constricts the expansion of its ribs for breathing. The dorsal part of the turtle shell or the carapace consists mainly of costal and neural bony plates which are continuous with the underlying thoracic ribs and vertebrae respectively.
The inner layer of the shell is made out of bones. Retained scutes dysecdysis metabolic bone disease and trauma are common diseases of the shell. Scales are made of keratin.
Some of those bones that make the top of the shell carapace evolved from the scapula rami of the clavicles along with the dorsal and superficial migration of the clecthra. The plastron and carapace. There are two parts to the shell.
The scutes are made of keratin the primary substance in hair nails and hooves of other animals. Box turtles can also retract their head and limbs into their shells and close the shell for added protection. The turtle shell has a top carapace and a bottom plastron.
Turtles overcome this problem with muscles that increase the space surrounding their lungs as they breathe in.
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