Ivory tusks and teeth consist of an inner pulp cavity surrounded by dentine – a combination of connective tissues that have minerals and collagen properties. Found in tusks of elephants and teeth of mammals such as the hippopotamus, walrus, boar, sperm and killer whale, ivory forms layers. It gets strength and rigidity from inorganic components, namely mineralised tissues. The organic element, collagen, helps in the growth and repair of ivory, which has no blood vessels, is porous and absorbs and releases moisture.
Tags Blood Vessels Boar Collagen Dentine Growth and repair of ivory Hippopotamus Inner pulp cavity Inorganic components Ivory forms layers Ivory tusks and teeth Mineralised tissues Minerals and collagen properties Moisture Organic element Sperm and killer whale Teeth of mammals Tusks of elephants Walrus
विश्व पर्यावरण दिवस 5 जून विश्व पर्यावरण दिवस संयुक्त्त राष्ट्र द्वारा प्रकृति को समर्पित दुनिया …