Scapulohumeral muscles

Question 1

What are the six scapulohumeral muscles?

Answer 1

Supraspinatus, infraspinatus, teres minor, subscapularis, teres major, and deltoid mm.

Question 2

What are the rotator cuff muscles?

Answer 2

Supraspinatus, infraspinatus, teres minor, subscapularis mm.

Question 3

What is the function of the rotator cuff muscles?

Answer 3

To keep the humeral head in contact with the glenoid fossa

Question 4

O- Supraspinatus m.

Answer 4

Supraspinous fossa

Question 5

I- Supraspinatus m.

Answer 5

Greater tubercle of the humerus (same as infraspinatus m. and teres minor m.)

Question 6

A- Supraspinatus m.

Answer 6

Abduction of the arm (first 15 degrees)

Question 7

Inn- Supraspinatus m.

Answer 7

Suprascapular nerve (same as infraspinatus m.)

Question 8

O- Infraspinatus m.

Answer 8

Infraspinous fossa

Question 9

I- Infraspinatus m.

Answer 9

Greater tubercle of the humerus (same as supraspinatus m. and teres minor m.)

Question 10

A- Infraspinatus m.

Answer 10

Lateral rotation of the arm (same as teres minor m.)

Question 11

Inn- Infraspinatus m.

Answer 11

Suprascapular nerve (same as supraspinatus m.)

Question 12

O- Teres minor m.

Answer 12

Lateral/posterior scapular surface

Question 13

I- Teres minor m.

Answer 13

Greater tubercle (same as supraspinatus and infraspinatus)

Question 14

A- Teres minor m.

Answer 14

Lateral rotation of the arm (same as infraspinatus m.)

Question 15

Inn- Teres minor m.

Answer 15

Axillary nerve

Question 16

Which is the anterior rotator cuff muscle?

Answer 16

Subscapularis m.

Question 17

O- Subscpaularis m.

Answer 17

Subscapular fossa

Question 18

I- Subscpaularis m.

Answer 18

Lesser tubercle

Question 19

A- Subscpaularis m.

Answer 19

Medial rotation of the arm

Question 20

Inn- Subscapularis m.

Answer 20

Upper and lower subscapular nn.

Question 21

O- Teres major m.

Answer 21

Inferior/posterior scapular surface

Question 22

I- Teres major m.

Answer 22

Crest of the lesser tubercle

Question 23

A- Teres major m.

Answer 23

Adduction, extension and medial rotation of the arm (second swimmer muscle)

Question 24

Inn- Teres major m.

Answer 24

Lower subscapular n.

Question 25

O- Deltoid m.

Answer 25

Spine and acromion process of scapula, lateral third of the clavicle (same as trapezius m.)

Question 26

I- Deltoid m.

Answer 26

Deltoid tuberosity

Question 27

A- Deltoid m.

Answer 27

Abduction of the arm (after 15 degrees, supraspinatus m. abducts for the first 15 degrees)

Question 28

Inn- Deltoid m.

Answer 28

Axillary nerve.