Nerves And Movements Of The Shoulder Flashcards
What is part of the rotator cuff
Infraspinatus
Supraspinatus
Teres minor
Subscapularis
What nerve supplies the teres minor
The axillary nerve
C5/C6
What nerve supplies the supraspinatus, infraspinatus and the teres major
The subscapulular nerve
C4/C5/C6
What nerve supplies the trapezius muscle
The accessory nerve
Cranial nerve X1
What nerve supplies the deltoid and teres minor
Axillary nerve
C5/C6
What nerve supplies the pectroralis major
The medial and the lateral pectoral nerve
What nerve would supply the Pectoralis minor
The medial pectoral nerve
What nerve would innovate the latissimus Doris
The thoracodorsal nerve
C6/C7/C8
What nerve supplies the rhomboidal and the Levator scapular
The dorsal scapular nerve
C4/C5
What nerve would supply the biceps brachi and the brachialis
The musculocutaneous nerve
C5/C6/C7
What nerve would supply the triceps brachi and the aconoues
The radial nerve
What is the function of the rotator cuff
Would hold the humerus in the glenoid cavity
What are the adductors
Teres major
Pectoralis major
(Basically the majors)
Latissimus dorsi
Coracobrachilis
What nerve innovates the serratus anterior
The long thoratic nerve
C5-C6-C7
What would the areas of the deltoid do
Anterior: flexion and the medial rotation
Middle: abducts the arm
Posterior: extension and the lateral rotation
What are the ABductors im The shoulder
The middle deltoid
Supraspinatus (INITIATES the deltoid in the first 15°)
What are the ADductors in the arm.
Teres major
Latissimus dorsi
Pectoralis major
What are the lateral rotators of the shoulder
Infraspinatus
Teres minor
Posterior region of the deltoid
What are the medial rotators of the arm
Subscapularis
On the anterior
Anterior region of the deltoid
Latissimus dorsi
Teres major
Pectoralis major
What does the anterior deltoid do
Flexes and medically rotates
What does the posterior deltoid do
Extends
Laterally rotates
What do the areas of the trapezius do
Descending: elevates
Ascending: depresses
The ascending and descending work together to rotate the glenoid cavity
What is the function of the latissimus dorsi muscle
Adduction of the arm
Medial rotation
Extends the arm
Where would the muscles of the rotator cuff start and end
Start at the scapula and would end at the humeral head
Where would the intrinsic muscles start and end
Would start at the scapula or the clavicle and would end at the humerus
Where would the extrinsic muscles start and end
Would come from the torso and would go to the shoulder bones
What is the origin and insertion of the biceps brachi heads
Long head - supraglenoid tubercle
Short head - the coracoid process
Go to the radial tuberosity
What is the origin and the insertion of 5e brachialis
Origin - the distal end of the anterior humerus
Insertions - the ulna tubercle and the coronoid process
What is the origin and the insertion of the coracobrachialis
Origin - coracoid process
Insertion - the medial humerus
What are the orgin and the insertion of the triceps brachi
3 heads
Long - infra glenoid tubercle
Lateral - superior radial groove
Medial - inferior radial groove
Goes to the olecranon of ulna
What is the origin and insertion of the anconeus
Origin - lateral epicondyle of humerus
Insertion - olecranon of the ulna
What would be the branches of the brachial artery
The profunda brachial artery (would go into the radial collateral artery)
Nutrient humeral artery
The superior and inferior ulna collateral artery
