{"id":1833,"date":"2020-07-14T10:15:24","date_gmt":"2020-07-14T10:15:24","guid":{"rendered":"https:\/\/murreeroad.org\/Biology10\/?p=1833"},"modified":"2020-07-14T10:17:40","modified_gmt":"2020-07-14T10:17:40","slug":"q-3-write-a-note-on-cartilage-and-bone-in-human-skeleton","status":"publish","type":"post","link":"https:\/\/murreeroad.org\/Biology10\/q-3-write-a-note-on-cartilage-and-bone-in-human-skeleton\/","title":{"rendered":"Q.3 Write a note on cartilage and bone in Human skeleton?"},"content":{"rendered":"

Q.3 Write a note on cartilage and bone in Human skeleton?<\/strong><\/p>\n

Answer:<\/strong>
\nIntroduction <\/strong>
\nOverall, the human skeleton is made of bony framework but in certain parts, this frame work is supplemented by cartilage.
\nConnective Tissue<\/strong>
\nBoth cartilage and bones are types of connective tissues in animals. Most of the connective tissues contain collagen fibres in a matrix.
\nExplanation<\/strong>
\n (i) Cartilage<\/strong>
\nDefinition<\/strong>
\nCartilage is a dense, clear blue-white firm connective tissue but less strong than bone.
\nChondrocytes<\/strong>
\nThe cells of cartilage are called chondrocytes.
\n\"matrix\"
\nLacuna<\/strong>
\nEach chondrocyte lies in a fluid space called lacuna present in the matrix of cartilage.
\nCollagen Fibres <\/strong>
\nThe matrix of cartilage also contains collagen fibres.
\nNo Blood vessels in cartilage in <\/strong>
\nBlood vessels do not enter cartilage.
\nTypes of Cartilage\u00a0<\/strong>
\n\"cartilage\"
\nThere are three types of cartilage:
\n1. Hyaline cartilage
\n2. Elastic Cartilage
\n3. Fibrous cartilage
\n1) Hyaline Cartilage:<\/strong>
\nHyaline cartilage is strong and flexible cartilage. It is found covering the ends of the long bones, in the nose, larynx, trachea and bronchial tubes.
\n\"muscles\"
\n 2) Elastic Cartilage:<\/strong>
\nElastic cartilage is similar to hyaline cartilage. It is also quite strong but has\u00a0 elasticity due to a network of elastic fibers in addition to collagen fibers. It is found in epiglottis and pinna etc.
\n3) Fibrous Cartilage:<\/strong>
\nFibrous cartilage is very tough and less flexible due to large number of their collagen fibers present in knitted form. It is found in intervertebral discs.
\n\"verlebra
\n(ii) Bone: <\/strong>
\nDefinition <\/strong>
\nBone is the hardest connective tissue in body. Bones not only move, support and protect the various parts of body but also produce red and white blood cells and store minerals.
\nStructure of a bone<\/strong>
\n1) Compact bone The hard outer layer of a bone is called compact bone.
\n2) Spongy bone Interior of bone is soft and porous called spongy bone, it contains blood vessels
\nand bone marrow, Babies are born with about 300 soft bones some of these bones later fuse together, so that the adult skeleton has 206 hard bones.
\n\"spongy
\n3<\/b>) <\/b>Matrix <\/b>of <\/b>bones <\/b>
\nLike <\/span>cartilage<\/span>, <\/span>the <\/span>matrix <\/span>of <\/span>bones <\/span>also <\/span>contains <\/span>collagen<\/span>. <\/span>But <\/span>it also <\/span>contains\u00a0<\/span>minerals <\/span>e<\/span>.<\/span>g<\/span>. <\/span>calcium <\/span>and <\/span>phosphate<\/span>. <\/span>Bones <\/span>contain <\/span>different <\/span>types <\/span>of <\/span>cells<\/span>, <\/span>
\n4<\/b>) <\/b>Osteocyte\u00a0<\/b>
\nMature <\/span>bone <\/span>cells <\/span>are <\/span>called <\/span>osteocytes<\/span>.\u00a0<\/span>
\n\"structure
\n\"\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Q.3 Write a note on cartilage and bone in Human skeleton? Answer: Introduction Overall, the human skeleton is made of bony framework but in certain parts, this frame work is supplemented by cartilage. Connective Tissue Both cartilage and bones are types of connective tissues in animals. Most of the connective tissues contain collagen fibres in… Read More »Q.3 Write a note on cartilage and bone in Human skeleton?<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[24],"tags":[],"_links":{"self":[{"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/posts\/1833"}],"collection":[{"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/comments?post=1833"}],"version-history":[{"count":2,"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/posts\/1833\/revisions"}],"predecessor-version":[{"id":1844,"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/posts\/1833\/revisions\/1844"}],"wp:attachment":[{"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/media?parent=1833"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/categories?post=1833"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/tags?post=1833"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}