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Elbow Joint

Elbow joint structure

QuestionAnswer
Infraglenoid tubercle Tricep muscle orgin
Supraglenoid tubercle Orgin of Long head of biceps muscle
Coracoid process Short head of biceps muscle
Trochlea Articulate with ulna
Medial epicondyle Pronator teres orgin flexor muscles
Lateral epicondyle Anconeus and supinator muscles extensor muscle orgin
Lateral supracondylar ridge Orgin brachioradialis
Olecranon process (back point of proximal ulna) Triceps attachment insertion
Trochlear notch Semilunar notch (anterior surface proximal ulna) articulates with trochlea of humerus
Coronoid process Insertion for brachialis muscle (ulna below trochlear notch)
Ulnar tuberosity attachment for brachialis muscle (insertion)
Radial tuberosity Biceps attachment point (insertion)
Styloid process Brachioradialis
Muscles of elbow and forearm Brachialis, Brachioradialis, Biceps, Supinator, Triceps, Anconeus, Pronator teres, Pronator quadratus
Brachialis Orgin Distal half of humerus, anterior surface
Brachailis Insertion Coronoid process and ulnar tuberosity of the ulna
Brachialis Elbow flexion from coronoid process and ulnar tuberosity
Brachialis Segmental:C5, C6 Terminal End is what? Brachialis (Musculutaneous nerve)
Biceps Brachii orgin Long head: supraglenoid tubercle of scapula and Short head is on coracoid process
Biceps Brachii insertion Radial tuberosity of radius
Biceps Brachii action Elbow flexion, forearm suppination of radial tuberosity of radius
Biceps segmental: C5, C6 Terminal End is what? Biceps (Musculocutaneous nerve)
Brachioradialis Muscle orgin Lateral supracondylar ridge on the humerus
Brachioradialis Insertion Styloid process of radius
Brachioradialis Action Elbow flexion from syloid process of radius
Brachioradialis segmental (C5, C6) Terminal end is what Brachioradialis (Radial nerve)
Triceps orgin Long head infraglenoid tubercle scapula -Short head inferior to lesser tubercle (lat side) Middle head post mid humerus
Triceps insertion Olecrann process of ulna
Triceps action Elbow extension
Triceps segmental (C7, C8) Terminal end is? Triceps (Radial nerve)
Anconenus muscle orgin Lateral epicondyle of humerus
Anconeus insertion Lateral and inferior to olecranon process of ulna
Anconeus action assists in elbow extension
Anconeus segmental (C7, C8) Terminal end is: Anconeus (Radial nerve)
Pronator teres orgin medial epicondyle of humeurs and coronoid process of ulna
Pronator teres insertion Lateral aspect of radius at its midpoint
Pronator teres action Forearm pronation, asistive in elbow flexion
Pronator teres segmental (C6, C7) Terminal end is? Pronator teres (Medial Nerve)
Pronator Quadratus origin Distal one-fourth of ulna
Pronator quadratus insertion Fistal one-fourth of radius
Pronator quadratus action forearm pronation
Pronator quadratus segmental (C8, T1) Pronator quadratus (Median nerve)
Supinator origin Lateral epicondyle humerus and adjacent ulna
Supinator insertion Anerior surface of proximal radius
Supinator action Forearm supinatiion
Supinator segmental (C6) Radial nerve (segmental is)
Created by: donald_dino