Arm Muscles

  1. What muscle flexes the elbow?
    Bicep Brachii
  2. What muscle extends the elbow?
    Tricep Brachii
  3. The brachialis performs what action?
    Flexion of forearm at elbow
  4. What is the origin and insertion of bicep brachii?
    • O- Long Head- Supraglenoid tubercle of scapula
    • Short Head- Coracoid process of scapula

    I- Radial tuberosity and aponeurosis of biceps brachii
  5. What is the origin and insertion of Tricep Brachii?
    • O- Long head- Infraglenoid tubercle of scapula
    • Medial Head- Posterior humerus lower 2/3 distal ro radial groove
    • Lateral Head- Posterior humerus uppper one-half proximal to radioal groove

    I- Olecranon process of ulna via common tendnous insertion
  6. What is the origin and insertion of Brachislis?
    O- Humerus distal half of anterior surface

    I- Tueberoisty and coronoid process of ulna
  7. With the arms in anatomical position where will you find the extensor muscles
    Posterior side
Card Set
Arm Muscles
Muscles and actions of arm