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21 Cards in this Set
- Front
- Back
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LATISSIMUS DORSI
O-I-A-N |
ORIGIN
lumbar fascia, INSERTION Floor of bicipital groove of humerus ACTION Extends, adducts and medially rotates arm. Costal attachment helps with deep inspiration and forced expiration NERVE Thoracodorsal nerve (C6, 7, 8) (from posterior cord) |
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RHOMBOID MINOR
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ORIGIN
spinous processes of C7-T1 INSERTION Small area of posteromedial border of scapula ACTION Retracts scapula. Rotates lower scapula back to rest position NERVE Dorsal scapular nerve (C5) (from root) |
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RHOMBOID MAJOR
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ORIGIN
Spinous processes of T2-T5 and supraspinous ligaments INSERTION Lower half of posteromedial border of scapula, from angle to upper part of triangular area at base of scapular spine ACTION Retracts scapula. Rotates scapula to rest position NERVE Dorsal scapular nerve (C5) (from root ) |
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ERECTOR SPINAE-SPINALIS
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ORIGIN
Spinous processes INSERTION Spinous processes six levels above ACTION Extends back, Lateral flexion of spine NERVE Posterior primary rami |
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ERECTOR SPINAE-ILIOCOSTALIS
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ORIGIN
Iliac crest, sacrum, lumbar vertebrae INSERTION Ribs, cervical transverse processes ACTION Extends and lateral flexes spine NERVE Posterior primary rami |
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ERECTOR SPINAE-ILIOCOSTALIS
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ORIGIN
Iliac crest, sacrum, lumbar vertebrae INSERTION Ribs, ACTION Extends and lateral flexes spine NERVE Posterior primary rami |
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MULTIFIDUS
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ORIGIN
Laminae of vertebra INSERTION Spinous processes two to three levels above ACTION Extends spine NERVE Posterior primary rami |
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ROTATORES
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ORIGIN
Transverse processes INSERTION Spinous processes one above ACTION Extends, Rotates spine NERVE Posterior primary rami |
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QUADRATUS LUMBORUM
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ORIGIN
Iliolumbar ligament and posterior third of iliac crest INSERTION Inferior border of 12th rib ACTION Fixes 12th rib during respiration and lateral flexes (sidebends) trunk NERVE Anterior primary rami (T12-L3) |
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EXTERNAL ABDOMINAL OBLIQUE
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ORIGIN
Anterior angles of lower eight ribs INSERTION aponeurosis of anterior rectus sheath ACTION Supports abdominal wall, assists forced expiration, aids raising intraabdominal pressure and, with muscles of opposite side, abducts and rotates trunk NERVE Anterior primary rami (T7-12) |
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SERRATUS ANTERIOR
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ORIGIN
Upper eight ribs INSERTION Inner medial border scapula. 1 and 2: upper angle; 3 and 4: length of costal surface ; 5-8: inferior angle ACTION Laterally rotates and protracts scapula NERVE Long thoracic nerve (C5, 6, 7) (from roots) slips from ribs 1 and 2: C5; 3 and 4: C6; 5-8: C7) |
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PECTORALIS MINOR
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ORIGIN
3, 4, 5 ribs INSERTION coracoid process of scapula ACTION Elevates ribs if scapula fixed, protracts scapula (assists serratus anterior) NERVE Medial pectoral nerve (C8, T1) (from medial cord) |
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EXTERNAL INTERCOSTALS
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ORIGIN
Inferior border of ribs as far back as posterior angles INSERTION Superior border of ribs below, passing obliquely downwards and backwards ACTION Fix intercostal spaces during respiration. Aids forced inspiration by elevating ribs NERVE Muscular collateral branches of intercostal nerves |
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INTERNAL ABDOMINAL OBLIQUE
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ORIGIN
Lumbodorsal fascia, INSERTION aponeurosis of rectus sheath (anterior and posterior ) ACTION Supports abdominal wall, assists forced respiration, aids raising intra-abdominal pressure and, with muscles of other side , abducts and rotates trunk. Conjoint tendon supports posterior wall of inguinal canal NERVE Anterior primary rami (T7-12) (conjoint tendon ilioinguinal nerve (L1)) |
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RECTUS ABDOMINIS
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ORIGIN
Pubic crest and pubic symphysis INSERTION 5, 6, 7 costal cartilages, medial inferiorcostal margin and posterior aspect of xiphoid (sternum) ACTION Flexes trunk, aids forced expiration and raise intra-abdominal pressure NERVE Anterior primary rami (T7-12) |
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INTERNAL INTERCOSTALS
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ORIGIN
Superior border of ribs as far back as posterior angles INSERTION Inferior border of ribs above , passing obliquely upwards and backwards ACTION Fix intercostal spaces during espiration. Aids forced inspiration by elevating ribs NERVE Muscular collateral branches of intercostal nerves |
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TRANSVERSUS ABDOMINIS
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ORIGIN
Costal margin, lumbodorsal fascia, anterior two thirds of iliac crest and lateral half of inguinal ligament INSERTION Aponeurosis of posterior and anterior rectus sheath and conjoint tendon to pubic crest and pectineal line ACTION Supports abdominal wall, aids forced expiration and raising intra-abdominal pressure. Conjoint tendon supports posterior wall of inguinal canal NERVE Anterior primary rami (T7-12). Conjoint tendon ilioinguinal nerve (L1) |
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INNERMOST INTERCOSTALS
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ORIGIN
Internal aspect of ribs above and below INSERTION Internal aspect of ribs above and below ACTION Fix intercostal spaces during respiration NERVE Muscular collateral branches of intercostal nerves |
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DIAPHRAGM
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ORIGIN
Vertebral:crura from bodies of L1, 2 (left), L1-3 (right). Costal: medial and lateral arcuate ligs, inner aspect of lower six ribs . Sternal: two slips from posterior aspect of xiphoid INSERTION Central tendon ACTION Inspiration and assists in raising intra-abdominal pressure NERVE Phrenic nerve (motor) (C3, 4, 5). Sensory: phrenic, intercostals (6-12) and upper two lumbar nerve roots |
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ERECTOR SPINAE-LONGISSIMUS
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ORIGIN
Transverse processes INSERTION Transverse processes several levels above ACTION Extends spine NERVE Posterior primary rami |
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PECTORALIS MAJOR
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ORIGIN
ternum, INSERTION Lateral lip of bicipital groove of humerus ACTION Clavicular head:flexes and adducts arm. Sternal head: adducts and medially rotates arm . Accessory for inspiration NERVE Medial pectoral nerve (from medial cord) a |
