Bones of the Upper Limb.pptx 2014

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    SKELETON

    Skeleton system consist of several types of tissue

    Cartilage( connective tissue semi rigid)

    Bones (rigid type of connective tissue)

    The Skelton (Bones) provides

    Protection

    Locomotion

    Storage of (Minerals)

    Synthesis of blood (from bone marrow)

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    Classification of Bones

    BONES MAY BE CLASSIFIED ACCORDING TOREGION. Appendicular and Axial )SHAPE. Long ,Short ,Irregular, Flat and Sesamoid)DEVELOPMENTAL Cartilaginous and Membranous)STRUCTURAL Spongy and Compact)

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    AXIAL SKELETONSKULL

    Cranium 8

    Face 14

    Auditory ossicles 6

    28

    Hyoid 1

    Vertebrae (including sacrum and coccyx)

    Cervical 7 ,thorax 12 and lumbar 5 26

    Sternum 1

    Ribs 24

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    Classification According to shape.

    Long . eg, Clavicle Humerus Radius Ulna.

    Femur Tibia Fibula.

    Short. eg, Hand and Foot bones.

    Irregular. eg, Vertebrae , Hip bones .

    Flat . eg, Scapula Sternum Skull.

    Sesamoid. eg, Patella and Pisiform.

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    EACH LONG BONES HAS

    Epiphysis

    Diaphyis.

    Metaphysis.

    Epiphysial plat. Is a Cartilage present in

    between the diaphysis Epiphysis .Bone

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    Epiphysis.

    Metaphysis

    Diaphysis

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    COMMON FEATURES OF THE BONES

    Condyles: Rounded Knuckle Like Area

    Crest: Thick border

    Epicondyle: eminence superior to condyle

    Facet:

    a smooth flat area usually covered withcartilage where bone articulates with another bone.

    Grove: elongated depression

    Head:

    a large rounded end makes the articulation Tubercle: a small rounded elevation

    Tuberosity: a large rounded elevation

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    THE CLAVICLEIs the long bone lying in

    horizontally connects theupper limb with the axial

    Skelton

    Main features of the clavicle

    Two ends medial & lateral

    Two curvatures medial &lateral

    Two surfaces inferior &Superior

    Two borders. Anterior andposterior.

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    Clavicle

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    SCAPULA Flat triangular bone

    Following are the important features

    Three Borders:lateral , medial and superior.Three Angles: Superior inferior and lateral.

    Spine: Triangular in shape at the posterior surface of

    scapula.Acromion processprojects above the glevoid cavity from

    the lateral side of spine.

    Glenoid cavity. Pear shaped at lateral angle.Three Fossae supraspinous , infraspinous & subscapular.

    Two notches supra-scapular & spino-glenoind.

    Two Surfaces. Anterior(costal) and posterior.

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    SCAPULA

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    HUMERUS

    Is the long bone of arm

    Following are main features Head:

    Tubercle:Lesser and

    greater tubercle.

    Bicipital grove:Betweentwo tubercles.

    Trochlea: Pulley shaped on

    lateral side of lower end .

    Capitulam:On Medial side

    lower end

    Epicondyle:lateral and

    medial.

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    ULNA Medial side bone of the

    fore arm

    Following are theimportant Features.

    Head (on lower side.)

    Medial Styloid process

    Trochlear notch Olecranon process

    Ulnar notch

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    CARPAL BONE (Eight bones)

    Arranged in two rows

    Proximal and Distal. Scaphoid .

    Lunate.

    Triquetral.

    Pisiform.

    Trepezium.

    Trepizoid.

    Capitate.

    Hamate.

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    METACARPAL

    Five in numbers

    present in the palm

    of the hand.

    First number starts

    from lateral side.

    PHALANGES

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    PHALANGES.

    Total fourteen

    Two in the thumb Three in each of the

    remaining fingers.