Muscles Of Upper Extremity

Front 1

What muscles move the scapula?

Back 1

A. Trapezius

B. Rhomboids

C. LEvator Scapulae

D. Pectoralis Minor

E. Serratus Anterior

Front 2

What is the function of the trapezius?

Back 2

elevates, depresses, retracts, and rotates scapula

Front 3

What is the function of the rhomboid (major, minor)?

Back 3

elevate and retract scapula

Front 4

What is the function of the levator scapulae?

Back 4

elevates scapula

Front 5

What is the function of the pectoralis minor?

Back 5

protracts (pulls forward) and depresses (downward) scapula

Front 6

What is the function of the serratus anterior?

Back 6

same as pectoralis minor:

protracts (pulls forward) and depresses (downward) scapula

Front 7

What muscles move the humerus/shoulder joint?

Back 7

1. Pectoralis Major

2. Latissimus Dorsi

3. Deltoid

4. Coracobrachialis

5. Teres Major

6. Subscapularis

7. Supraspinatus

8. Infraspinatus

9. Teres Minor

Front 8

Where does the pectoralis major and latissimus dorsi originate from?

Back 8

axial skeleton

Front 9

Where does the deltiod, coracobrachialis, and the teres major originate from?

Back 9

the scapula

Front 10

The subscapularis, supraspinatus, infraspinatus, and teres minor are all considered what kind of muscles?

Back 10

"rotator cuff" muscles

Front 11

What is the function of the pectoralis major?

Back 11

flexes, adducts, and medially rotates humerus

Front 12

What is the function of the latissimus dorsi?

Back 12

adducts, extends, and medially rotates arm/humerus

Front 13

What is the function of the deltoid?

Back 13

abducts, flexes, and extends arm/humerus

Front 14

What is the function of the coracobrachialis?

Back 14

flexes, adducts arm/humerus

Front 15

What is the function of the teres major?

Back 15

extends, adducts, and medially rotates arm/humerus

Front 16

What is the function of the subscapularis?

Back 16

medially rotates arm/humerus

Front 17

What is the function of the supraspinatus?

Back 17

abducts and laterally rotates arm/humerus

Front 18

What is the function of the infraspinatus?

Back 18

laterally rotates arm/humerus

Front 19

What is the function of the teres minor?

Back 19

laterally rotates arm/humerus

Front 20

What muscles are flexors of the forearm/elbow joint?

Back 20

1. Biceps brachii

2. Brachialis

3. Brachioradialis

Front 21

What muscles are extensors of the forearm/elbow joint?

Back 21

1. Triceps brachii

2. Anconeus

Front 22

What muscles are in the SUPERFICIAL group of the anterior surface of the forearm?

Back 22

1. Pronator Teres

2. Flexor Carpi Radialis

3. Palmaris Longus

4. Flexor Carpi Ulnaris

Front 23

What is the function of the pronator teres?

Back 23

pronates forearm

Front 24

What is the function of the flexor carpi radialis?

Back 24

flexes wrist and abducts hand

Front 25

What is the function of the parlmaris longus?

Back 25

flexes wrist

Front 26

What is the function of the flexor carpi ulnaris?

Back 26

flexes wrist and adducts hand

Front 27

What muscles are in the INTERMEDIATE group of the anterior surface of the forearm?

Back 27

flexor digitorum superficials

Front 28

What is the function of the flexor digitorum superficials?

Back 28

flexes wrist and flexes digits 2 through 5 at the MP and PIP joints

(MP=metacarpal-phalangeal

PIP=proximal interphalangeal)

Front 29

What muscles are in the DEEP group of the anterior surface of the forearm?

Back 29

1. Flexor Digitorum Profundus

2. Flexor Pollicis Longus

3. Pronator Quadratus

Front 30

What is the function of the flexor digitorum profundus?

Back 30

flexes wrist and digits 2-5 at the MP, PIP, and DIP joints (DIP=distal interphalangeal)

Front 31

What is the function the the flexor pollicis longus?

Back 31

flexes thumb

Front 32

What is the function of the pronator quadratus?

Back 32

pronates forearm

Front 33

What muscles are in the SUPERFICIAL group of the posterior surface of the forearm?

Back 33

1. Extensor Carpi Radialis Longus

2. Extensor Carpi Radialis Brevis

3. Extensor Digitorum

4. Extensor Carpi Ulnaris

Front 34

What is the function of the extensor carpi radialis longus?

Back 34

extends wrist and abducts hand

Front 35

What is the function of the extensor carpi radialis brevis?

Back 35

extends wrist and abducts hand

Front 36

What is the function of the extensor digitorum?

Back 36

extends wrist and extends digits 2-5 at MP, PIP, and DIP joints

Front 37

What is the function of extensor carpi ulnaris?

Back 37

extends wrist and adducts hand

Front 38

What muscles are in the DEEP group of the posterior surface of the forearm?

Back 38

1. Supinator

2. Abductor Pollicis Longus

3. Extensor Pollicis Longus

Front 39

What is the function of the supinator?

Back 39

supinates forearm

Front 40

What is the function of the abductor pollicis longus?

Back 40

abducts thumb

Front 41

What is the function of the extensor pollicis longus?

Back 41

extends thumb

Front 42

What are the muscles of the hand?

Back 42

1. Thenar

2. Hypothenar

3. Midpalmar

Front 43

What is the function of the the thenar muscles?

Back 43

move the thumb

Front 44

What is the function of the hypethenar muscles?

Back 44

move little finger

Front 45

What is function of the midpalmar muscles?

Back 45

move fingers 2-5

Front 46

What muscles flex the MP joints and extend the PIP/DIP joints?

Back 46

Thenar, hypothenar, and midpalmar muscles

Front 47

How many lumbricales do we have?

Back 47

4

Front 48

How many palmar interossei do we have?

Back 48

3

Front 49

How many dorsal interossei do we have?

Back 49

4

Front 50

What is the function of the palmar interossei?

Back 50

adducts fingers

Front 51

What is the function of the dorsal interossei?

Back 51

abduct fingers