A. LAB (Intrinsic Muscles FL Arm)

Question 1

Deltoideus
(acromial and scapular) O+I

Answer 1

O: Spine and acromial process of scapula
I: Deltoid tuberosity

Question 2

Deltoideus
(acromial and scapular) A

Answer 2

Flex the shoulder

Question 3

Infraspinatus O+I

Answer 3

O: Infraspinous fossa
I: Small, circumscribe area on lateral side of greater tubercule of humerus

Question 4

Infraspinatus A

Answer 4

-extend or flex the joint
-abduct the shoulder
-rotate humerus laterally (weight bearing)

Question 5

Teres minor O+I

Answer 5

O: Infraglenoid tubercule and distal third of caudal border of scapula
I: Teres minor tuberosity of humerus

Question 6

Teres minor A

Answer 6

-flex the shoulder
-rotate laterally (prevent medial rotation-weight bearing)

Question 7

Supraspinatus O+I

Answer 7

O: Supraspinous fossa
I: Greater tubercule of the humerus (by thick tendon)

Question 8

Supraspinatus A

Answer 8

Extend and stabilize shoulder joint

Question 9

Subscapularis O+I

Answer 9

O: Subscapular fossa
I: Lesser tubercule of the humerus

Question 10

Subscapularis A

Answer 10

-adduct
-extend
-medially stabilize
shoulder joint

Question 11

Teres major O+I

Answer 11

O: -caudal angle and adjacent caudal border of scapular
-caudal surface of subscapularis
I: Teres major tuberosity of the humerus

Question 12

Teres major A

Answer 12

-flex
-rotate medially
-prevent later rotation (weight bearing)
shoulder joint

Question 13

Coracobrachialis O+I

Answer 13

O: Coracoid process of the scapula
I: Crest of less tubercule of humerus proximal to teres major tuberosity

Question 14

Coracobrachialis A

Answer 14

-adduct
-extent
-stabilize
shoulder joint

Question 15

Tensor fasciae antebrachia O+I

Answer 15

O: Fascia covering the later side of latissimus dorsi
I: Olecranon

Question 16

Tensor fasciae antebrachia A

Answer 16

Extend elbow joint

Question 17

Triceps brachiaii long head O+I

Answer 17

O: Caudal border of scapula
I: Olecranon tuber

Question 18

Triceps brachiaii lateral head O+I

Answer 18

O: Tricipital line of humerus
I:Olecranon tuber

Question 19

Triceps brachiaii acessory head O+I

Answer 19

O: Neck of humerus
I:Olecranon tuber

Question 20

Triceps brachiaii medial head O+I

Answer 20

O: Crest of less tubercule near teres major tuberosity
I: Olecranon

Question 21

Triceps brachiaii long head A

Answer 21

-extend elbow joint
-flex shoulder joint

Question 22

Triceps brachiaii lateral, accessory, medial head A

Answer 22

-extend elbow joint

Question 23

anconeus O+I

Answer 23

O: -lateral supracondylar crest
-lateral and medial epicondyles of humerus
I: Lateral surface of proximal end of ulna (olecranon)

Question 24

anconeus A

Answer 24

Extend elbow joint

Question 25

Biceps brachii O+I

Answer 25

O: Supraglenoid tubercule
I: Ulnar and radial tuberosities

Question 26

Biceps brachii A

Answer 26

-flex the elbow joint
-extend the shoulder joint

Question 27

Brachialis O+I

Answer 27

O: Proximal third of the lateral surface of the humerus
I: Ulnar and radial tuberosities

Question 28

Brachialis A

Answer 28

Flex the elbow joint