CH08 - Lecture Notes_ BIO-168-OA01-ML FL21 Human Anatomy and Physiology I w_ lab (P) (4 cr) - Bridge

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9/25/21, 1:16 AMCH08 - Lecture Notes: BIO-168-OA01-ML FL21 Human Anatomy and Physiology I w/ lab (P) (4 cr) - Bridget Boyle1/13CH08 - Lecture Notes001 narrow red border.jpgAppendicular skeletonIntroductionIncludes 60 percent of bones in the bodyAllows us to move and manipulate objectsIncludesBones of limbsSupporting bone girdles8-1 The Pectoral GirdlesPectoral girdle(shoulder girdle)Connects each arm to the bodyMovements position the shoulder jointAnd provide a basis for arm movementEach girdle consists ofOne clavicleOne scapulaConnects with the axial skeleton only at the manubriumClavicles(collarbones)S-shaped bonesOriginate at the manubrium (sternal end)Articulate with the scapulae (acromial end)Scapulae(shoulder blades)Broad, flat trianglesArticulate with humerus and clavicleAnterior surface depression is subscapular fossa
9/25/21, 1:16 AMCH08 - Lecture Notes: BIO-168-OA01-ML FL21 Human Anatomy and Physiology I w/ lab (P) (4 cr) - Bridget Boyle2/13Three sides of each scapulaSuperior borderMedial border(vertebral border)Lateral border (axillary border)Corners of scapulaeSuperior angleInferior angleLateral angleLateral angle supports theglenoid cavityArticulates with humerusTo form shoulder joint (glenohumeral joint)Scapular processesCoracoidprocessSmall and anteriorAcromionLarge and posteriorArticulates with clavicle at acromioclavicular jointSpineRidge across posterior surfaceDividessupraspinous fossaandinfraspinous fossa8-2 The Upper LimbsSkeleton of upper limbsConsists of bones of theArms (arm = shoulder to elbow)ForearmsWristsHands
9/25/21, 1:16 AMCH08 - Lecture Notes: BIO-168-OA01-ML FL21 Human Anatomy and Physiology I w/ lab (P) (4 cr) - Bridget Boyle3/13HumerusThe only bone in the arm (brachium)Extends from scapula to elbowHeadRound, proximal portion that articulates with scapulaGreater tubercleRounded projection on lateral surfaceForms lateral contour of shoulderLesser tubercleAnterior, medial projectionTubercles are separated byintertubercular sulcus(bicipital groove)Anatomical neckMarks extent of joint capsuleSurgical neckCorresponds to metaphysis of growing boneShaft of humerusDeltoid tuberosityLarge, rough elevation on lateral surfaceAttaches deltoid muscleRadial grooveOn posterior surfaceFor radial nerveMedial andlateral epicondylesDistal expansions for muscle attachmentCondyleof the humerusArticulates with ulna and radiusTrochlea
9/25/21, 1:16 AMCH08 - Lecture Notes: BIO-168-OA01-ML FL21 Human Anatomy and Physiology I w/ lab (P) (4 cr) - Bridget Boyle4/13

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Bridget Boyle

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