Phase 6 Bone tissue Tissue

 Chapter six Bone Tissue Essay

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Our bones and Skeletal Tissues

Skeletal Cartilage

Does not contain blood vessels or perhaps nerves

Surrounded by the perichondrium (dense infrequent connective tissue) that withstands outward enlargement Three types – hyaline, elastic, and fibrocartilage

Hyaline Cartilage

Provides support, versatility, and strength

Is the most abounding skeletal the cartilage

Is present during these cartilages:

Entretejer – protects the ends of extended bones

Saca – attaches the steak to the sternum

Respiratory – makes up larynx, reinforces air passages

Nose – helps the nasal area

Elastic The cartilage

Similar to hyaline cartilage, nevertheless contains supple fibers

Found in the exterior ear as well as the epiglottis

Fibrocartilage

Highly compressed with wonderful tensile strength

Is made up of collagen fibers

Found in menisci of the knees and in intervertebral discs

Growth of Cartilage

Appositional – skin cells in the perichondrium secrete matrix against the external face of existing the cartilage Interstitial – lacunae-bound chondrocytes inside the the fibrous connective tissue cartilage divide and secrete fresh matrix, broadening the cartilage from within Calcification of cartilage occurs

During normal bone tissue growth

During old age

Category of Bone tissues

Axial skeleton – bone fragments of the skull, vertebral steering column, and rib cage Appendicular skeleton – bones of the upper and lower limbs, shoulder, and hip Classification of Bones: By Shape

Long bone tissues – for a longer time than they can be wide

(e. g., humerus)

Brief bones

Cube-shaped bones of the wrist and ankle

Bones that type within muscles (e. g., patella)

Flat bones – thin, squashed, and a bit curved (e. g., sternum, and most skull bones) Irregular bones – bones with complicated shapes (e. g., vertebrae and hip bones) Function of Bones

Support – constitute the framework that supports your body and cradles soft bodily organs Protection – provide a defensive case for the brain, spinal cord, and vital organs Movement – provide redressers for muscle groups

Mineral storage area – reservoir for mineral deposits, especially calcium mineral and phosphorus Blood cellular formation – hematopoiesis takes place within the marrow cavities of bones Bone Markings

Swells, depressions, and holes that serve as:

Sites of attachment for muscles, ligaments, and muscles

Joint floors

Conduits intended for blood vessels and nerves

Bone fragments Markings: Projections –

Sites of Muscle and Ligament Add-on

Tuberosity – rounded discharge

Crest – narrow, visible ridge of bone

Trochanter – large, blunt, abnormal surface

Collection – slim ridge of bone

Tubercle – tiny rounded output

Epicondyle – raised region above a condyle

Spine – sharpened, slender output

Process – any bony prominence

Cuboid Markings: Projections –

Projections That Help to Kind Joints

Brain – bony expansion carried on a thin neck

Feature – easy, nearly level articular area

Condyle – rounded entretejer projection

Drungnokas – armlike bar of bone

Cuboid Markings: Depressions and Opportunities

Meatus – canal-like passageway

Sinus – cavity within a bone

Fossa – shallow, basin-like despression symptoms

Groove – furrow

Fissure – narrow, slit-like opening

Foramen – round or perhaps oval starting through a bone tissue

Gross Anatomy of Bone tissues: Bone Smoothness

Compact bone tissue – heavy outer layer

Spongy bone fragments – honeycomb of trabeculae filled with discolored bone marrow Structure of Long Cuboid

Long bone fragments consist of a diaphysis and an epiphysis

Diaphysis

Tubular shaft that forms the axis of long our bones

Composed of small bone that surrounds the medullary tooth cavity Yellow bone fragments marrow (fat) is included in the medullary cavity Epiphyses

Broadened ends of long our bones

Exterior is compact bone, and the in house is spongy bone

Joint surface is covered with articular (hyaline) cartilage

Epiphyseal line isolates the diaphysis from the epiphyses

Bone Walls

Periosteum – double-layered safety membrane

Exterior fibrous part is thick regular connective tissue

Interior osteogenic layer is composed of osteoblasts and osteoclasts Richly provided with nerve fibres, blood, and lymphatic ships, which enter the bone by means of...

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