rotator cuff muscle b Posterior view Supraspinatus Infraspinatus Teres minor

Rotator cuff muscle b posterior view supraspinatus

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(rotator cuff muscle)(b) Posterior viewSupraspinatusInfraspinatusTeres minorRotator cuffmusclesTeres majorTriceps brachiiLatissimus dorsiLateral borderSubscapularisTeres minorGlenoid cavityCoracoid processClavicleAcromionInfraspinatusRotator cuffmusclesSupraspinatusAnterior Posterior(c) Lateral view232FIGURE 23.3 Rotator cuff muscles: (a) anterior view; (b) posterior view; (c) lateral view. Some regional bones, features, and muscles are also labeled.TABLE 23.2 ​Muscles​That​Move​the​ArmMuscleOriginInsertionActionPectoralis majorClavicle, sternum, and costal cartilages of upper ribsIntertubercular sulcus of humerusFlexes, adducts, and rotates arm mediallyLatissimus dorsiSpinous processes of lumbar and lower thoracic vertebrae, iliac crest, and lower ribsIntertubercular sulcus of humerusExtends, adducts, and rotates the arm mediallyDeltoidAcromion and spine of the scapula and the clavicleDeltoid tuberosity of humerusAbducts, extends, and flexes armTeres majorLateral border of scapulaIntertubercular sulcus of humerusExtends, adducts, and rotates arm mediallyCoracobrachialisCoracoid process of scapulaShaft of humerusFlexes and adducts the armSupraspinatusSupraspinous fossa of scapulaGreater tubercle of humerusAbducts the armInfraspinatusInfraspinous fossa of scapulaGreater tubercle of humerusRotates arm laterallyTeres minorLateral border of scapulaGreater tubercle of humerusRotates arm laterallySubscapularisSubscapular fossa of scapulaLesser tubercle of humerusRotates arm mediallymar53064_ch23_229-242.indd 2329/16/11 11:23 AM
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2333. Demonstrate the actions of these muscles in your body.4. Locate the origins and insertions of these muscles in the human skeleton.5. Study figures 23.1, 23.2, and 23.3, and table 23.2.6. Locate the following muscles in the human torso model and models of the upper limb. Also locate in your body as many of the muscles as you can.muscles that move the armorigins on axial skeletonpectoralis majorlatissimus dorsiorigins on scapuladeltoidteres majorcoracobrachialisrotator cuff (SITS) muscles (origins also on scapula)supraspinatusinfraspinatusteres minorsubscapularis7. Demonstrate the actions of these muscles in your body.8. Locate the origins and insertions of these muscles in the human skeleton.9. Study figures 23.1, 23.2, 23.4, and 23.5, and table 23.3.(a) Anterior muscles: superficial(b) Anterior muscles: intermediate(c) Anterior muscles: deepPronator teresBrachioradialisPronator quadratusPalmar aponeurosisFlexor carpi radialisPalmaris longusFlexor carpi ulnarisFlexor digitorum superficialisPronator quadratus Supinator Flexor pollicis longusFlexor digitorum profundusFIGURE 23.4 The (a) superficial, (b) intermediate, and (c) deep anterior forearm muscles.
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  • Spring '16
  • Physiology, Anatomy, muscles, Laboratory Exercise 23, Muscle Of The Chest, Shoulder,, Chest And Shoulder Muscles Tha, Muscles of the upper limb, Medial border of scapula

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