Forearm & Elbow Flashcards
Pronator Teres
O Medial EpiCondyle of the Humerus & the Coranoid Process of the Ulna
I MIDdle 1/3 of the Lateral Surface of the Radius
A Pronates the Forearm @R/U Joint &
Flexes the Elbow @ the H/U Joint
Triceps Brachii (Lateral & Medial Heads)
O Lateral: Proximal (1/3) Posterior Shaft of Humerus
Medial: Distal (2/3) Posterior Shaft of Humerus
I Olecron Process of the Ulna
As Extends the Elbow @ the H/U Joint
Triceps Brachii (Long Head)
O Infraglenoid Tubercle of the Scapula
ITS OPUn
I Olecron Process of the Ulna
(S)HAB-E ADD G/H EE H/U
As Extends, ADDucts, & Horizontally ABducts Shoulder @ G/H Joint & Extends Elbow @ H/U Joint
Brachioradialis
O Proximal 2/3 of the Lateral Supracondylar Ridge of the Humerus
I Lateral Side of the Styloid Process of the Radius
As Flex Elbow @ the H/U Joint &
Supinates & Pronates Forearm @ R/U Joint
Brachialis
O Distal 1/2 Anterior Shaft of the Humerus
I Tuberosity of the Coronoid Process of the Ulna
A Flex the Elbow @ the H/U Joint
Biceps Brachii
O Long : Supraglenoid Tubercle of Scapula
Short: Coracoid Process of Scapula
I Tuberosity of the Radius & Bicepital Aponeurosis
As Flex Elbow @ H/U Joint Supinates Forearm @ R/U
Flexes Shoulder @ G/H Joint
Supinator
O Lateral EpiCondyle of the Humerus, Supinator Crest of the Ulna & the Proximal Ulna
I Anterior, Lateral Surface of Proximal 1/3 of the Radial Shaft
A Supinates the Forearm @the R/U Joint
HumeroRadial &HumeroUlnar Joint Type & Actions
Hinge , flexion, extension & modified hinge
RadioUlnar Joint
Pivot, Pronation, Supination
Radial Nerve
Deep branch penetrates Supinator muscle belly, can elicit a sharp, shooting sensation down the forearm when compressed
Ulnar Nerve
“Funny bone” superficial as passes between the medial epicondyle and olecranon process as it extends down the forearm
