Exam 2 OIANS MUSCLE

• What is the proximal attachment to the short head of the bicep brachii

  Tip of coracoid process of scapula

  
• What is the proximal attachment to the long head of the bicep brachii

  Supraglenoid tubercle of scapula

  
• What is the distal attachment of the bicep brachii

  Tuberosity of radius and fascia of forearm via bicipital aponeurosis

  
• What is the innervation of the bicep brachii

  Musculocutaneous nerve (C5,C6)

  
• What is the main actions for the bicep brachii

  supinates forearm and, when it is supinated, flexes elbow joint; flexes shoulder joint; short head resists dislocation of shoulder
• What muscle is this

  Bicep brachii

  
• What is the proximal attachment to the Brachialis

  Distal half of anterior surface of humerus

  
• What is the distal attachment to the Brachialis

  Coronoid process and tuberosity of ulna

  
• what is the innervation of the Brachialis

  Musculocutaneous nerve C5, C6
• what are the main actions for the Brachialis

  flexes elbow joints in all positions
• What muscle is this

  Coracobrachialis

  
• what is the proximal attachment to the coracobrachialis

  tip of coracoid process of scapula

  
• what is the distal attachment of the coracobrachialis

  Middle third of medial surface of humerus

  
• what is the innervation of the coracobrachialis

  Musculocutaneous nerve C5,C6,C7
• what are the main actions of the coracobrachialis

  helps flex and Adduct shoulder joint; resists dislocation of shoulder
• What is the proximal attachment to the long head of the triceps brachii

  Infraglenoid tubercle of scapula

  
• What is the proximal attachment to the lateral head of the triceps brachii

  Posterior surface of humerus, superior to radial groove

  
• What is the proximal attachment to the medial head of the triceps brachii

  Posterior surface of humerus, inferior to radial groove

  
• what is the distal attachment of the triceps brachii

  proximal end of olecranon of ulna and fascia of forearm

  
• what is the innervation of the Triceps brachii

  radial nerve C6,C7,C8
• what is the main action of the tricep brachii

  chief extensor of elbow joint; long head extends shoulder joint and resists dislocation of humerus (especially important during abduction)
• What is this muscle ?

  Pronator Teres

  
• what is the proximal attachment of the pronator Teres

  coronoid process of ulna

  
• what is the distal attachment of the pronator Teres

  middle of convexity of lateral surface of radius

  
• what is the innervation of the pronator Teres

  median nerve C6, C7

  
• what is the main action of the pronator Teres

  pronates forearm and flexes elbow joint
• what is the proximal attachment of the flexor carpi radialis

  medial epicondyle of humerus

  
• what is this muscle

  Flexor carpi radialis

  
• what is the distal attachment of the flexor carpi radialis

  Base of 2nd (3rd) metacarpal

  
• what is the innervation of the flexor carpi radialis

  median nerve C6,C7
• What are the main actions of the flexor carpi radialis

  Flexes and abducts hand at wrist
• What is this muscle

  Palmaris longus

  
• what is the proximal attachment of the palmaris longus

  medial epicondyle of humerus

  
• what is the distal attachment of the palmaris longus

  distal half of flexor retinaculum, palmar aponeurosis

  
• what is the innercation of the palmaris longus

  median nerve C7,C8
• what are the main actions of the palmaris longus

  flexes hand and tense palmar aponeurosis
• What is this muscle ?

  Flexor carpi ulnaris

  
• what is the proximal attachment of the flexor carpi ulnaris

  olecranon and posterior border of ulna

  
• what is the distal attachment of the flexor carpi ulnaris

  Pisiform, hook of hamate, 5th metacarpal
• what is the innervation of the flexor carpi ulnaris

  ulnar nerve C7, C8