Musculos del Dorso
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Questions and Answers

Quale musculo face parte del strato superficiale del musculo back extrinsico?

  • Trapezius (correct)
  • Iliocostalis
  • Multifidus
  • Semispinalis
  • Quale musculo es considerato parte del strato intermedio del musculo back extrinsico?

  • Serratus anterior
  • Latissimus dorsi
  • Rhomboids
  • Serratus posterior superior (correct)
  • Quale musculo forma parte del strato profunde dei muscoli back intrinsec?

  • Levator scapulae
  • Rhomboids
  • Longissimus (correct)
  • Latissimus dorsi
  • Quale musculo non es un musculo intrinseco del back?

    <p>Levator scapulae</p> Signup and view all the answers

    Quale es le funzione principale del musculo latissimus dorsi?

    <p>Adducere e extender le braccio</p> Signup and view all the answers

    Quae es le principal function del ulna in le braccio?

    <p>Stabilisar le articulations del forearm.</p> Signup and view all the answers

    Quale es le caractere distinctive del radius in comparison con le ulna?

    <p>Es involvito in le articulaciones del pollice.</p> Signup and view all the answers

    Quale articulations es formate per le ulna e le radius?

    <p>Articulatio cubiti.</p> Signup and view all the answers

    Quae es le structura fundamentales de le ossa carpales?

    <p>Composed de ronde e quadrate formas.</p> Signup and view all the answers

    Quae es le function principale del metacarpos?

    <p>Servir como base pro le falanges.</p> Signup and view all the answers

    Quot phalanges ha le digitos, excepta pro le pollice?

    <p>Tre</p> Signup and view all the answers

    Quale ossa equiha le capitate e hamate es le prime a apparer in le ossification?

    <p>Capitate e Hamate</p> Signup and view all the answers

    Que nervio poterea esser lesionate lors de un fracture in le collo chirurgic del humerus?

    <p>Nervio axillare</p> Signup and view all the answers

    Quale de le sequente es un fractura commun de le antebrachio?

    <p>Fractura de Colles</p> Signup and view all the answers

    Quale osso forma parte del grupo de carpal bones in le mano?

    <p>Scaphide</p> Signup and view all the answers

    Quale parte del radius es ubi le shaft tapa distalmente?

    <p>Caput</p> Signup and view all the answers

    Que structura ligava le metacarpi al carpal bones?

    <p>Articulatio carpometacarpal</p> Signup and view all the answers

    Quale nervio poterea esser lesionate durante un fracture in le extremitate distale del humerus?

    <p>Nervio mediano</p> Signup and view all the answers

    Which muscle is classified as part of the superficial layer of the intrinsic back muscles?

    <p>Splenius cervicis</p> Signup and view all the answers

    What is a primary action of the trapezius muscle?

    <p>Adduction of the scapula</p> Signup and view all the answers

    Which muscle belongs to the deep layer of the intrinsic back muscles?

    <p>Levatores costarum</p> Signup and view all the answers

    What nerve is primarily associated with the latissimus dorsi?

    <p>Thoracodorsal nerve</p> Signup and view all the answers

    Which muscle is part of the intermediate layer of the extrinsic back muscles?

    <p>Serratus posterior superior</p> Signup and view all the answers

    Which of the following bones is NOT part of the pectoral girdle?

    <p>Humerus</p> Signup and view all the answers

    What feature distinguishes the acromial end of the clavicle?

    <p>It is rounded and forms the coracoacromial joint.</p> Signup and view all the answers

    Which muscle is primarily responsible for movements between the shoulder blade and the upper limb?

    <p>Trapezius</p> Signup and view all the answers

    The primary function of the shoulder blade (scapula) includes which of the following?

    <p>Connecting the spine to the arm.</p> Signup and view all the answers

    Which of the following muscles would be considered part of the back and is involved in upper limb movement?

    <p>Trapezius</p> Signup and view all the answers

    What is the most common fracture of the forearm called?

    <p>Colles fracture</p> Signup and view all the answers

    Which nerves can be injured in a humeral fracture at the surgical neck?

    <p>Radial nerve and axillary nerve</p> Signup and view all the answers

    Which of the following describes the ossification centers in the wrist and hand?

    <p>The centers for capitate and hamate appear first.</p> Signup and view all the answers

    Which describes the structure of each phalanx?

    <p>Each phalanx consists of a base, a shaft, and a head.</p> Signup and view all the answers

    What is the correct anatomical term for the distal fragment displacement in a Colles fracture?

    <p>Dorsally</p> Signup and view all the answers

    Which of the following statements is true regarding the digits (fingers)?

    <p>The thumb has only two phalanges.</p> Signup and view all the answers

    Which nerve is potentially injured in a fracture of the distal end of the humerus?

    <p>Median nerve</p> Signup and view all the answers

    What is the primary role of radiographs in assessing skeletal age?

    <p>To compare with standards in a radiographic atlas</p> Signup and view all the answers

    Study Notes

    Musculos del Dorso

    • Le musculos del dorso pote esser classificate in duo gruppos: musculos extrinsic e musculos intrinsic.
    • Le musculos extrinsic son superficiale e agisce super le bracio e le scapula, le musculos intrinsic son plus profunde e agisce super le columna vertebral.

    Musculos Extrinsic del Dorso

    • Le musculos extrinsic del dorso pote esser dividite in duo stratas: le strato superficial e le strato intermedie.
    • Le strato superficial include le musculos trapezius, latissimus dorsi, levator scapulae, e rhomboideus.
    • Le strato intermedie include le musculos serratus posterior superior e serratus posterior inferior.

    Musculos Intrinsic del Dorso

    • Le musculos intrinsic del dorso pote esser dividite in tres stratas: le strato superficial, le strato intermedie e le strato profonde.
    • Le strato superficial include le musculos splenius cervicis e splenius capitis.
    • Le strato intermedie include le musculos iliocostalis, longissimus e spinalis.
    • Le strato profonde include le musculos semispinalis, multifidus, rotatores, interspinales, intertransversarii e levatores costarum.

    Ossea del Membro Superior

    • Le cintura scapular include le clavicula e le scapula.
    • Le clavicula connecte le membro superior al trunco.
    • Le scapula es un osse triangular que se situa super le 2° a 7° costulas.
    • Le bracio contine le humero.
    • Le antebracio contine le radio e le ulna.
    • Le mano contine le osses carpales, metacarpes e phalanges.

    Ossea del Mano

    • Le mano contine 8 osses carpales: scaphoide, lunate, triquetrum, pisiforme, trapezium, trapezoid, capitate e hamate.
    • Le osses metacarpes son 5 osses que forman le palma del mano.
    • Le phalanges son 14 osses que forma le digitos.

    Fracturas del Humero

    • Fracturas del humero pote esser asociate con injurias a nervos e arterias:
      • Colli chirurgico: nervo axillari.
      • Sulco radial: nervo radial.
      • Extremo distal del humero: nervo mediano e arteria brachial.
      • Epicondylo medial: nervo ulnar.

    Fracturas del Radio

    • Un fractura transversal complete del ultime 2 cm del radio, appellate fractura de Colles, es le fractura le plus commun del antebracio.
    • Le fragmento distal es displaciate dorsalmente.
    • Le fractura resulta de un extension forciate del mano, usualmente como resultato de un tentativa de amollecer un caduta per extender le membro superior.

    Clavicle

    • The clavicle (collar bone) connects the upper limb to the trunk.
    • The medial two thirds of the clavicle's shaft are convex anteriorly, while the lateral third is flattened and concave anteriorly.
    • The clavicle has a sternal end (flat) which forms the sternoclavicular joint, and an acromial end (round) which forms the coracoacromial joint.

    Scapula

    • The scapula (shoulder blade) is a triangular flat bone that overlies the 2nd–7th ribs.

    Digits

    • The digits (fingers) have three phalanges except for the first (the thumb), which has only two.
    • Each phalanx has a base proximally, a shaft (body), and a head distally, the shafts of the phalanges taper distally.

    Carpals

    • The carpals are the eight small bones of the wrist.
    • The carpals include the scaphoid, lunate, triquetrum, pisiform, trapezium, trapezoid, capitate, and hamate.

    Humerus

    • In fractures of the humerus the following elements can be injured:
      • Surgical neck: axillary nerve
      • Radial groove: radial nerve
      • Distal end of humerus: median nerve and brachial artery
      • Medial epicondyle: ulnar nerve

    Radius

    • A complete transverse fracture of the distal 2 cm of the radius, called a Colles fracture, is the most common fracture of the forearm.
    • The distal fragment is displaced dorsally.
    • The fracture results from forced extension of the hand, usually as the result of trying to ease a fall by outstretching the upper limb.

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    Description

    Este quiz explora le musculos del dorso, classificate in musculos extrinsic e intrinsic. Discutera le divers stratas de cada grupo e le musculos specific que le constitute. Testa tu cognoscentia super le anatomia del dorso.

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