Elbow

Question 1

Describe the anatomy of the elbow joint

Answer 1

Synovial hinge joint
Joint line 2 cm below med epi and 1cm below lat
Lat- capititulum of humerus to concave head of radius
Med- trochlea of humerus to trochlea notch of ulna
Post Olecranon fossa of H to olecranon of Ulna
Ant coranoid fossa of H to Coranoid process of Ulna
Fibrous capsule
Synovial membrane

Question 2

What are the ligaments of the elbow?

Answer 2

Medial Collateral ligament - med epi to coranoid process

Lateral Collateral ligament - lat epi to sup radioulna joint

Question 3

Describe the anatomy of Biceps Brachi

Answer 3

Flex, sup
Orig- LH=supraglenoid tubercle, SH=CP
Insert- common tendon post part of radial tuberosity
Musculocutaneous nerve C5-6

Question 4

Describe the anatomy of Brachialis

Answer 4

Flex
Orig-Distal 2/3s ant hum and adjacent septa
Insert-inf CP and tub Ulna
MC nerve C5-6

Question 5

Describe the anatomy of Brachioradialis

Answer 5

Flex, sup/pro
Orig-Upper 2/3s ant lat Supracondylar ridge of humerus and adjacent septum
Insert-lat surface of radius
Radial nerve C5-6

Question 6

Describe the anatomy of Triceps Brachi

Answer 6

Ext
Origin
-LH=infraglenoid tub of scap
-LatH=post humerus
Spiral groove between
-MedH=post humerus 
Insert-post surface of olecranon and deep fascia
Radial nerve C6-8

Question 7

Describe the anatomy of the anconeus

Answer 7

Assists ext
Orig- post of lat epi humerous
Insert- lat of O and post of ulna
Radial nerve C7-8

Question 8

Describe the borders of the cubical fossa of the elbow

Answer 8

Lat- med border of Brachioradialis
Med- lat border of Pronator Teres
Sup- line between to epicondyles

Question 9

What are the contents of the cubits fossa of the elbow?

Answer 9

Median nerve
Brachial Artery (rad and ulnar)
Biceps Brachi Tendon
Deep branch of radial nerve