true
Yes, all fish have bones. In fact, all fish are vertebrates, so they all have vertebrae (a spine or backbone).
flatworms
Sharks are the most obvious answer.
Membranous bone. To remember which bones are membranous vs. cartilaginous, think of it this way: cartilage has no time to grow in the place of what will become membranous bones, though it does for cartilaginous. This means that membranous bone develops before cartilaginous bone. I don't know how true this is ontogenetically, but it works for me.As membranous bone is the type of bone which develops first, it follows that it would be the type which provides the most important protection: cranial, vertebral, facial (excluding the mandible, I believe), and if I remember correctly, the ribs, sternum, and clavian bones are all membranous bones. Limb bones are all cartilaginous.n.A bone that forms directly in membranous connective tissue, as some cranial bones, instead of developing from cartilage.Read more: membrane-bone
No, skull joints are not called cartilaginous joints. Skull joints are typically classified as fibrous joints, specifically sutures, because they are connected by dense fibrous connective tissue. Cartilaginous joints are joints where the bones are held together by cartilage, like the joints between vertebrae in the spine or the pubic symphysis.
The form from the embryo.
Answermovementnot all joints allow for movement. some fibrous joints and some cartilaginous joints do not move. BUT the two fundamental functions of joints are to give our skeleton mobility, and to hold it together.They all hold the bones together!
swim bladder.
There are three types of joints in your body. You have fibrous, cartilaginous and synovial types of joints in your body. You have fibrous type of joint between, say the bones on the top of skull, between the teeth and teeth bearing bones and lower end of tibia and fibula bones. You have cartilaginous type of joints between epiphysis and diaphysis of the long bones. You have the same type of joint between the vertebrae and at pubic symphysis. You have synovial type of joints at shoulder and hip joints. Also at elbow and knee joints. All movable joints fall under this category.
Jawless fish and cartilaginous fish have cartilaginous skeletons, and bony fish have skeletons made from bone. Cartilaginous fish and bony fish both have jaws, paired appendages, and whole vertebrae, and jawless fish lack jaws, paired appendages, and often are without whole vertebrae. Cartilaginous fish can have scales or be naked, jawless fish are naked, and bony fish have scales. Bony fish have swim bladders, and cartilaginous fish do not. Jawless fish, cartilaginous fish, and bony fish all have fins, gills, and dorsal nerve cords that lead to a distinct brain. They all also have postanal tails and notochords.
false
Bones, ligaments, and cartilage are all in the same group of tissue. Bones are considered a specialized form of connective tissue.