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Flashcards in Muscles of the upper limb Deck (50)
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1

What are the pectoral region muscles

Pectoralis major
Pectoralis minor
Subclavicular
Serratus anterior

2

Origin and insertion of Pectoralis major

Orgin= Clavicular head and sternocostal head
Insertion= Sulcus of humerus

3

Origin and insertion of pectoralis minor

Origin= rib 3-5
Insert= Coracoid process

4

Origin and insertion of Subcalviculus

Origin= 1st rib
Insert= Mid clavicle

5

Origin and insertion of Serratus anterior

Origin= Rib 1-8
Insert= Medial border of scapulus

6

Extrinsic muscles of the shoulder

Rhomboid minor
Rhomboid major
Latissimus dorsi
Leviator scapulae
Trapezius

7

Origin and insertion of Trapezius

Origin= skull and c7-t12
Insert= clavicle acromiun
Function= elevate, depression and protraction

8

Origin and insertion of Latissimus dorsi

Origin= T6-T12
Insert= groove of humerus
Function= extend, adduct and medially rotate

9

Origin and insertion of leviator scapulae

Origin= C1- C4
Insert= Mid scapula
Function= Elevate

10

Origin and insertion of Rhomboid major and minor

Origin=major (T2-T5) Minor (C7-T1)
Inserts= medial border of the scapulla
Function= retract and rotate

11

Rotator cuff muscles

Supraspinatus
Infraspinatus
Teres minor
Subscapularis

12

Suprasinatus

Supraspinatus fossa to greater tubercle
abducts 0-15 degrees

13

Infraspinatus

Infraspinatus fossa to greater tubercle
Lateral rotation

14

Teres minor

Posterior scapulla to greater tubercle
Lateral roation

15

Subscapularis

Subscapularis fossa to lesser tubercle
Medial rotation

16

Deltoid

clavicle, coracoid process and spinous scapulla to deltoid tuberosity of humerus
Flex and extend shoulder

17

Teres major

Inferior scapula to intertuberosity of humerus
Adducts

18

What innervates the biceps?

Muscuntaneous nerve

19

What innervates the triceps?

Radial nerve

20

Anterior arm muscles

Medial to lateral
coracoibranchalis= coracoid process to medial side of humeral shaft
Biceps brachii= inserts in radial tuberosity
Branchialis- Ulna tuberosity insertion
* All innervated by the muscutaneous nerve

21

Triceps brachii

long and lateral head to olcronon of ulna
*radial nerve innervation

22

Anterior forearm superficial muscles

Lateral to medial
All start at medial epicondlye
-Pronator teres
-Flexor carpi radialis
-Palmaris longus
-Flexor carpi ulnaris

All innervated by the median nerve besides the carpi ulnaris which is innervated by the ulna nerve
Pass fail pass fail

23

Anterior forearm intermediate muscles

Flexor digitorum superficialis
Origin-medial epicondyle of humerus and radius
Insert- splits 4, through carpal tunnel to middle phalanges
Function= flexes 4 metacarpals
*median nerve

24

Anterior forearm deep muscles

Flexor digitorum profundus
Flexor pollcius longus
pronator quadratus

25

Posterior forearm superficial muscles

Medial to lateral
-Brachioradialis
-Extensor carpi longus and brevis
-Extensor digitorum
-Extensor digiti minimi
-Extensor carpi ulnaris
-Anconeous

*all radial nerve

26

Posterior forearm deep muscles

-Supinator
-Abductus pollicis longus
-Extensor pollicis longus
-Extensor indicis proprius

*radial nerve

27

Thenar muscles

1. Opponen pollicis-opposes
2. Abductor pollicis brevis- abducts
3. Flexor pollicis brevis- flexes

Median nerve innervates
Only Anna Farts

28

Hypothenar muscles

1. Opponens digiti minimi
2. Adbuctor digiti minimi
3. Flexor digiti minimi
Ulnar nerve innervates

29

Lumbricals

Flex MCP
Ulnar innervates

30

Interossei

Dorsal- abduct (4)
Palmer- adduct (3)
Ulnar innervates