Differences between bones and cartilages
Differences between bones and cartilages
| Bones | Cartilages | |
| 1 | Bone is tough and hard | Cartilage is soft and flexible |
| 2 | Bones cannot bend | Cartilages can bend |
| 3 | Function: protection against mechanical damage, movement of body parts, provides shape, produce blood cells, store minerals | Function: reduce friction at joints, support the respiratory tract, act as shock absorber and provide shape and flexibility of fleshy appendages such as ear and nose |
| 4 | Bone matrix composed of ossein | Cartilage matrix composed of chondrin |
| 5 | Ossein is tough and inflexible | Chondrin is firm but flexible |
| 6 | Bone matrix is organic and inorganic | Cartilage matrix is completely organic |
| 7 | Bone matrix is made up of proteins, calcium and phosphorus | Cartilage matrix made of proteins and sugars |
| 8 | Bones matrix is always impregnated with calcium salts | Cartilages matric is free or impregnated with calcium salts |
| 9 | Matrix is lamellate and occur in concentric manner | Matrix occurs as homogenous mass |
| 10 | Osteocytes are irregular | Chondroblasts are oval shaped |
| 11 | Osteoblasts present: osteoblast are the layer of bone forming cells. They present as outer and inner layer | No special cartilage forming cells. Cartilages grow by the division of all chondroblast |
| 12 | Only one cell per bone lacunae | Each cartilage lacunae with a single or group of two or four cells |
| 13 | Osteocytes give off branching process in the developing bone | Processes are absent in chondroblasts |
| 14 | Lacunae give off canaliculi | Lacunae do not have canalculi |
| 15 | Bone is vascular | Cartilage is non-vascular |
| 16 | Bone is porus | Cartilage non-porus |
| 17 | Nerve supply present | Nerve supply absent |
| 18 | Bones usually has bone marrow at the centre | No such tissue in cartilages |
| 19 | Two types of bones: compact and spongy bone | Three types of cartilages: hyaline, fibro and elastic cartilages |
| 20 | Bones possess Haversian system and Volkman’s canals | Cartilages do not possess Haversian system and Volkman’s canals |
| 21 | The growth pattern of bone is bidirectional | Growth of cartilage is unidirectional |
| 22 | The covering of bone is the periosteum | The covering of cartilage is the perichondrium |
| 23 | Bone never change cartilage | Cartilage may change to bone through calcification |
| 24 | Metabolic activity of bone is high | Metabolic activity of cartilages is low |
| 25 | Oxygen demand high in bones | Oxygen demand low in cartilages |
| 26 | Bones posses extensive repair capillaries | Cartilages have limited range of repair capillaries |
CATEGORIES Bio Questions and answers
TAGS Dr. Bbosa Science
