Upper Appendicular

Question 1

Extensor Carpi Radialis Brevis

Answer 1

Origin- common extensor tendon from the lateral epicondyle of humerous.

Insertion- Base of third metacarpal.

ACTIONS:
Extend the wrist
Abduct the wrist
Assist to flex the elbow

Question 2

Extensor Carpi ulnaris

Answer 2

ORIGIN- Common extensor tendon from the lateral epicondyle of humorous.

INSERTION- Base of 5th metacarpal

ACTIONS:
Extend the wrist
Adduct the wrist

Question 3

Pectoralis Minor

Answer 3

Origin- 3,4, 5th ribs

Insertion- Medial surface of coracoid process of the scapula

Actions:
Depress the scapula
Abduct the scapula
Downwardly rotate the scapula

Question 4

Supraspinatus

Answer 4

Origin- supraspinous fossa of the scapula
Insertion- greater tubercle of the numerous

Actions:
Abduct the shoulder
Stabilize the head of the humerous in the glenoid cavity

Question 5

Infraspinatus

Answer 5

Origin-
Infraspinous fossa of the scapula

Insertion- greater tubercle of the humerous

Actions:
Laterally rotate the shoulder
Adduct the shoulder
Stabilize head of humerous in glenoid cavity

Question 6

Teres minor

Answer 6

Origin- upper 2/3 of lateral boarder of scapula
Insertion- greater tubercle of the humerous

Actions:
Laterally rotate the shoulder
Adduct the shoulder
Stabilize head of humerous in glenoid cavity

Question 7

Pectoralis major

Answer 7

Origin- medial 1/2 of clavicle, sternum, and costal cartilage of 1-6 ribs
Insertion- crest of greater tubercle

Actions:
(All fibers) adduct the shoulder
Medially rotate shoulder

(Upper) flex the shoulder
Horizontally adduct the shoulder

(Lower) Extend the shoulder

Question 8

levator scapula

Answer 8

Origin- transverse process of 1-4th cervical vertebrae
Insertion- medial boarder of the scapula, between superior angle and superior portion of spine of scapula

Actions:

(Uni) elevated scapula
Downwardly rotate
Laterally flex the head and neck

(Bi) Extend the head and neck

Question 9

Latissimus dorsi

Answer 9

Origin- posterior iliac crest, thoracolumbar aponeurosis, spinous process of T12- T6, last 3-4 ribs and inferior angle of scapula

Insertion- bicipital groove of the humerous

Actions:
Extend the shoulder
Adduct the shoulder
Medially rotate the shoulder

Question 10

Teres major

Answer 10

Origin- inferior angle and lower 1/3 of lateral boarder of scapula
Insertion- crest of lesser tubercle of the humerous

Actions:
Extend the shoulder
Adduct the shoulder
Medially rotate the shoulder

Question 11

Deltoid

Answer 11

Origin- lateral 1/3 of clavicle, acromion and spine of scapula
Insertion- Deltoid tuberosity

Actions:

(All) Abduct the shoulder

(Anterior) flex the shoulder
Medially rotate the shoulder
Horizontally adduct the shoulder

(Posterior) Extend the shoulder
Laterally rotate the shoulder
Horizontally adduct the shoulder

Question 12

Biceps brachii

Answer 12

Origin- (short head) coracoid process of scapula
(Long head) supraglenoid tubercle of scapula

Insertion- tuberosity of the radius and aponeurosis of the bicep brachial

Actions:
Flex the elbow
Supinate the forearm
Flex the shoulder

Question 13

Triceps brachii

Answer 13

Origin-
(Long head) infraglenoid tubercle of the scapula
(Lateral head) posterior surface of proximal 1/2 of humerous
(Medial head) posterior surface of distal 1/2 of humerous

Insertion- olecranon process of the ulnar

Actions:
(All heads) Extend the elbow
(Long head) Extend the shoulder
Adduct the shoulder

Question 14

Pronator teres

Answer 14

Origin- common flexor tendon from medial epicondyle of humerous and coranoid process of the ulnar
Insertion- middle of lateral surface of the radius

Actions:
Pronate the forearm
Assist to flex the elbow

Question 15

Flexor carpi radialis

Answer 15

Origin- common flexor tendon from medial epicondyle of humerous
Insertion- base of 2 and 3rd metacarpals

Actions:
Flex the wrist
Abduct the wrist
May Assist to flex the elbow

Question 16

Extensor digitorum

Answer 16

Origin- common extensor tendon from the lateral epicondyle of humerous
Insertion- bases of middle and distal phalanges of 2- 5th fingers

Actions:
Extend the 2-5th fingers
Assist to extend the wrist

Question 17

Rhomboids

Answer 17

ORIGIN- Spinous processes of C7 to T5

INSERTION- Medial boarder of the scapula, across from spine of scapula until inferior angle of scapula

ACTIONS:
ELEVATE THE SCAPULA
STABILIZE THE SCAPULA