UA BSC 109 - Bone parts and functions (3 pages)

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Bone parts and functions



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Bone parts and functions

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Components of bones, what can happen to bones, bone structure, structures surrounding bones


Lecture number:
8
Pages:
3
Type:
Lecture Note
School:
University of Alabama
Course:
Bsc 109 - Intro Biology Non Maj II
Edition:
1

Unformatted text preview:

BSC 109 1nd Edition Lecture 8 Outline of Last Lecture I The skin as an organ system continued II Skim disorders and diseases Outline of Current Lecture I Skeletal system consists of connective tissue A Bone hard elements of the skeleton 1 Functions 2 Contains living cells 3 Ligaments hold bones together 4 Cartilage lends support 5 Bone development begins as embryo 6 Bones undergo repair 7 Current Lecture I Skeletal system Skeletal system consists of consists of connective tissue A Bone hard elements of the skeleton 1 Functions support protection movement blood cell formation mineral storage calcium and phosphate 2 Contain living cells a Inorganic matrix of calcium salts 1 Compact bone shaft ends marrow of bone 2 Yellow bone marrow fat marrow space 3 Spongy bone lattice like support lighter spaces contain red bone marrow These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute 4 Cells osteoblasts osteocytes osteoclasts osteo means bone blasts make other cells cytes are mature cells clasts recycle dead cells 3 4 5 6 5 Types long flat irregular 6 Osteons haverson system cellular arrangement 7 Periostium connective tissue covering 8 Blood vessels run through center Ligaments hold bones together a Bone to bone b Dense fibrous connective tissue c Provides strength to joint enables movement Cartilage lends support 3 types a Fibrocart has a lot of fiber strings found in intervertebral disks helps keep spine vertebrae from rubbing together found in menisci of the knee and disks in the spine herniated disk is the result of destroyed fibrocart b Hyaline instruction for laying down bones when babies covers protects ends of long bones and joints c Elastic movable flexible lightweight as in ears Bone development begins as embryo a Begins as a few cells which develop into hyaline which is formed by chondroblasts chondro means cartilage b Signal comes in at some point and instructs



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