Wednesday, January 28, 2015

Muscle move video

Muscle
Origin
Insertion
Movement
  • pectoralis major
Clavicular head: medial half of the clavicle.
Lateral lip of the intertubercular (bicipital) groove of the humerus.
Flexes the arm at the shoulder (glenohumeral) joint.
  • intercostal muscles
Inferior border of ribs above.
Superior border of ribs below.
Elevation of the rib cage during inhalation.
  • trapezius
external occipital protuberance, ligamentum nuchae, and medial portion of the superior nuchal line
posterior-superior aspect of the lateral one third of the clavicle
elevation of the scapula, upward rotation of the scapula (with the serratus anterior and lower trapezius)
  • gluteus maximus
Outer iliac blade, iliac crest, sacrum, coccyx. latae  
Gluteal tuberosity of femur, iliotibial band of fasciae 
Extends and laterally rotates thigh, braces knee
  • biceps femoris
upper inner quadrant of posterior surface of ischial tuberosity. Short head:middle third of linea aspera, lateral supracondylar ridge of femur
Styloid process of head of fibula. lateral collateral ligament and lateral tibial condyle
Extension of the thigh at the hip, Abduction of the thigh at the hip
  • tibialis anterior
Lateral condyle and proximal half 2/3 of the lateral surface of the tibial shaft.
Inferomedial aspect of the medial cuneiform and base of the first metatarsal.
Inverts and adducts the free foot, assists in plantar flexion. Prevents excessive pronation of the foot during walking.
  • soleus
Soleal line and middle third of posterior border of tibia and upper quarter of posterior shaft of fibula including neck
Tendo calcaneus to middle of three facets on posterior surface of calcaneus
Plantar flexes foot(ankle)
  • biceps brachii
Long head:supraglenoid tubercle of scapula. Short head: coracoid process of scapula with coracobrachialis
posterior border of bicipital tuberosity of radius (over bursa) and bicipital aponeurosis to deep fascia and subcutaneous ulna
Supinates forearm, flexes elbow, weakly flexes shoulder
  • deltoid
Lateral third of clavicle, acromion, spine of scapula to deltoid tubercle
Middle of lateral surface of humerus (deltoid tuberosity)
Abducts arm, anterior fibers flex and medial rotate, posterior fibers extend and lateral rotate
  • triceps brachii
Long head: infraglenoid tubercle of scapula. lateral head: upper half posterior humerus (linear origin). medial head: lies deep on lower half posterior humerus inferomedial to spiral groove and both intermuscular septa
Posterior part of upper surface of olecranon process of ulna and posterior capsule
Extends elbow. Long head stabilizes shoulder joint. medial head retracts capsule of elbow joint on extension
  • rectus abdominus
Straight head: anterior inferior iliac spine. Reflected head: ilium above acetabulum
Quadriceps tendon to patella , via ligamentum patellae into tubercle of tibia
Extends leg at knee. Flexes thigh at hip
  • sternocleidomastoid
Anterior and superior manubrium and superior medial third of clavicle
Lateral aspect of mastoid process and anterior half of superior nuchal line
Flexes and laterally rotates cervical spine. Protracts head when acting together . Extends neck when neck already partially extended

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