The Elbow

Question 1

What are the bony landmarks on the elbow?(three)

Answer 1

Medial/Lateral epicondyle
Olecranon

Question 2

Articulating surfaces at the elbow joint?(7)

Answer 2

Olecranon
Capitulum
Trochlea
Radial notch
Radial fossa
Coronoid fossa
Coronoid process

Question 3

Describe the structure and function of the medial/ulnar collateral ligament?

Answer 3

S:Made up of 3 (anterior,posterior and inferior) ligamentous bands
F: Stabilises the elbow joint

Question 4

Describe the structure and function of the lateral/radial collateral ligament?

Answer 4

S: Fan shaped bundle of fibres
F: Stabilises the elbow joint

Question 5

What is the Function, Origin, Insertion and Innervation of the Pronator quadratus ?

Answer 5

Function: Pronates forearm
Origin: Anterior distal ulna
Insertion: Anterior distal radius
Innervation: Anterior antebrachial interosseous nerve

Question 6

What is the Function, Origin, Insertion and Innervation of the Pronator teres?

Answer 6

Function: Forearm pronation
Origin: Medial supracondylar humerus
Insertion: anterolateral radius
Innervation: Median nerve

Question 7

What is the Function, Origin, Insertion and Innervation of the Supinator?

Answer 7

Function: Forearm supination
Origin: Lateral epicondyle of humerus
Insertion: Posterior radius
Innervation: Posterior antebrachial interosseous nerve

Question 8

What is the Function, Origin, Insertion and Innervation of the Triceps brachii?

Answer 8

Function: Elbow extension
Origin: Posterior surface of humerus, infraglenoid tubercle
Insertion: olecranon process
Innervation: Radial nerve

Question 9

What is the Function, Origin, Insertion and Innervation of the Anconeus?

Answer 9

Function: Elbow extension
Origin: Posterior Lateral epicondyleof humerus
Insertion: Olecranon and proximal ulna
Innervation: Radial nerve

Question 10

What is the Function, Origin, Insertion and Innervation of the Biceps brachii?

Answer 10

Function:Elbow flexion,forearm supination
Origin: Supraglenoid tubercle and apex of coracoid process
Insertion: radial tuberosity
Innervation: Musculocutaneous nerve

Question 11

What is the Function, Origin, Insertion and Innervation of the Brachialis?

Answer 11

Function: Elbow flexion
Origin: Distal Anterior humerus
Insertion: Coronoid process
Innervation: Musculocutaneous nerve

Question 12

What is the Function, Origin, Insertion and Innervation of the Brachioradialis?

Answer 12

Function: Elbow flexion
Origin: Lateral supracondylar ridge of humerus
Insertion: Distal lateral radius
Innervation: Radial nerve