Nerves And Movements Of The Shoulder

Question 1

What is part of the rotator cuff

Answer 1

Infraspinatus
Supraspinatus
Teres minor
Subscapularis

Question 2

What nerve supplies the teres minor

Answer 2

The axillary nerve
C5/C6

Question 3

What nerve supplies the supraspinatus, infraspinatus and the teres major

Answer 3

The subscapulular nerve
C4/C5/C6

Question 4

What nerve supplies the trapezius muscle

Answer 4

The accessory nerve
Cranial nerve X1

Question 5

What nerve supplies the deltoid and teres minor

Answer 5

Axillary nerve
C5/C6

Question 6

What nerve supplies the pectroralis major

Answer 6

The medial and the lateral pectoral nerve

Question 7

What nerve would supply the Pectoralis minor

Answer 7

The medial pectoral nerve

Question 8

What nerve would innovate the latissimus Doris

Answer 8

The thoracodorsal nerve
C6/C7/C8

Question 9

What nerve supplies the rhomboidal and the Levator scapular

Answer 9

The dorsal scapular nerve
C4/C5

Question 10

What nerve would supply the biceps brachi and the brachialis

Answer 10

The musculocutaneous nerve
C5/C6/C7

Question 11

What nerve would supply the triceps brachi and the aconoues

Answer 11

The radial nerve

Question 12

What is the function of the rotator cuff

Answer 12

Would hold the humerus in the glenoid cavity

Question 13

What are the adductors

Answer 13

Teres major
Pectoralis major
(Basically the majors)
Latissimus dorsi
Coracobrachilis

Question 14

What nerve innovates the serratus anterior

Answer 14

The long thoratic nerve
C5-C6-C7

Question 15

What would the areas of the deltoid do

Answer 15

Anterior: flexion and the medial rotation
Middle: abducts the arm
Posterior: extension and the lateral rotation

Question 16

What are the ABductors im The shoulder

Answer 16

The middle deltoid
Supraspinatus (INITIATES the deltoid in the first 15°)

Question 17

What are the ADductors in the arm.

Answer 17

Teres major
Latissimus dorsi
Pectoralis major

Question 18

What are the lateral rotators of the shoulder

Answer 18

Infraspinatus
Teres minor
Posterior region of the deltoid

Question 19

What are the medial rotators of the arm

Answer 19

Subscapularis
On the anterior
Anterior region of the deltoid
Latissimus dorsi
Teres major
Pectoralis major

Question 20

What does the anterior deltoid do

Answer 20

Flexes and medically rotates

Question 21

What does the posterior deltoid do

Answer 21

Extends
Laterally rotates

Question 22

What do the areas of the trapezius do

Answer 22

Descending: elevates
Ascending: depresses
The ascending and descending work together to rotate the glenoid cavity

Question 23

What is the function of the latissimus dorsi muscle

Answer 23

Adduction of the arm
Medial rotation
Extends the arm

Question 24

Where would the muscles of the rotator cuff start and end

Answer 24

Start at the scapula and would end at the humeral head

Question 25

Where would the intrinsic muscles start and end

Answer 25

Would start at the scapula or the clavicle and would end at the humerus

Question 26

Where would the extrinsic muscles start and end

Answer 26

Would come from the torso and would go to the shoulder bones

Question 27

What is the origin and insertion of the biceps brachi heads

Answer 27

Long head - supraglenoid tubercle Short head - the coracoid process Go to the radial tuberosity

Question 28

What is the origin and the insertion of 5e brachialis

Answer 28

Origin - the distal end of the anterior humerus Insertions - the ulna tubercle and the coronoid process

Question 29

What is the origin and the insertion of the coracobrachialis

Answer 29

Origin - coracoid process Insertion - the medial humerus

Question 30

What are the orgin and the insertion of the triceps brachi

Answer 30

3 heads Long - infra glenoid tubercle Lateral - superior radial groove Medial - inferior radial groove Goes to the olecranon of ulna

Question 31

What is the origin and insertion of the anconeus

Answer 31

Origin - lateral epicondyle of humerus Insertion - olecranon of the ulna

Question 32

What would be the branches of the brachial artery

Answer 32

The profunda brachial artery (would go into the radial collateral artery) Nutrient humeral artery The superior and inferior ulna collateral artery