Lecture exam 2 -upper limbs

Question 1

Muscles of the scapula

Answer 1

trapezius
Rhomboids (major/minor)
Elevator scapulae
Pectoralis minor
Serratus anterior

Question 2

Function of trapezius

Answer 2

elevates and retracts scapula

Question 3

Function of the rhomboids

Answer 3

elevate and retract scapula

Question 4

Function of elevator scapulae

Answer 4

elevates scapula

Question 5

Function of pectoralis minor

Answer 5

protracts and depresses scapula

Question 6

Function of serratus anterior

Answer 6

protracts and depress scapula

Question 7

Muscles that move the arm glenhumeral joint

Answer 7

pectoralis major

Latissimus dorsi

Question 8

Function of pectoralis major

Answer 8

flexes and abducts arm

Question 9

Function of latissimus

Answer 9

extends and adducts arm

Question 10

Function of deltoid

Answer 10

abducts, flexes, and extends the arm

• anterior fibers flex
• posterior fibers extend

Question 11

function of coracobrachialis

Answer 11

flexes and abducts arm

Question 12

Function of teres major

Answer 12

Extends arm and abducts arm

Question 13

Muscles originating on scapulae

Answer 13

deltoid
Coracobrachialis
Teres major

Question 14

Muscles of rotator cuff

Answer 14

subscapularis
Supraspinatus
Infraspinatus
Teres minor

Question 15

Function of subscapularis

Answer 15

medially rotates arm

wind up for a pitch

Question 16

Function of supraspinatus

Answer 16

abducts arm

execute pitch

Question 17

Function of infraspinatus

Answer 17

Literally rotates arm

finish pitch, slow down pitching arm

Question 18

Function of Teres minor

Answer 18

laterally rotates arm

finish pitch, slow down pitching arm

Question 19

what are the anterior arm muscles and their function

Answer 19

flexors

• biceps brachii
• brachialis
• brachloradialis

Question 20

what arm muscle supinates the forearm

Answer 20

biceps brachii

Question 21

what are the posterior arm muscles and their function

Answer 21

extensors

• triceps brachii
• anconeus

Question 22

function of forearm muscles

Answer 22

flex arm/digits

Question 23

function of posterior forearm muscles

Answer 23

extend arm/wrist

Question 24

what are the pronators of anterior forearm

Answer 24

pronator teres

pronator quadratus

Question 25

function of the anterior forearm muscles

Answer 25

flex wrist, MP and/or IP joints | most originate from medial epicondyle of humerous

Question 26

what is the flexor retinaculum

Answer 26

band of dense regular CT to hold flexor tendons close to bone, space underneath flexor retinacolumn is the carpal tunnel

Question 27

what are the superficial group of anterior forearm muscles

Answer 27

flexor carpi radialis palmaris longus flexor carpi ulnaris

Question 28

function of the flexor carpi radialis

Answer 28

flexes wrist and abducts hand

Question 29

function of palmaris longus

Answer 29

flexes wrist

Question 30

function of flexor carpi ulnaris

Answer 30

flexes wrist and abducts hand

Question 31

what are the intermediate anterior forearm muscles

Answer 31

flexor digitorium superficialis | tendons attach to middle phalanges

Question 32

function of the flexor digitorium superficialis

Answer 32

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

Question 33

what are the deep anterior forearm muscles

Answer 33

flexor digitorium profundus | flexor pollicis longus

Question 34

function of flexor digitorium profundus

Answer 34

flexes wrist and digits 2-5 at the MP, PIP, and DIP joints (tendons attach to distal phalanges)

Question 35

function of flexor pollicis longus

Answer 35

flexes wrist, MP joint, IP joint of the thumb

Question 36

function of posterior forearm muscles

Answer 36

extensors of the wrist, MP and/or IP joints (most originate from the lateral epicondyle of humerous)

Question 37

function of superficial posterior forearm muscles

Answer 37

extensor carpi radialis longus extensor carpi radialis brevis extensor carpi ulnaris extensor digitorum

Question 38

function of extensor carpi radialis longus

Answer 38

extends wrist and abducts hand

Question 39

function of extensor carpi radialis brevis

Answer 39

extends wrist and abducts hand

Question 40

function of extensor carpi ulnaris

Answer 40

extends wrist and abducts hand

Question 41

function of extensor digitorum

Answer 41

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

Question 42

what are the deep posterior forearm muscles

Answer 42

extensor pollicis longus extensor pollicis brevis abductor pollicis longus

Question 43

what is the function of the extensor pollicis longus

Answer 43

extends thumb

Question 44

function of extensor pollicis brevis

Answer 44

extends thumb

Question 45

function of abductor pollicis longus

Answer 45

abducts thumb

Question 46

what are the hand muscles

Answer 46

thenar muscles hypothenar muscles midpalmar muscles

Question 47

function of thenar muscles

Answer 47

move thumb

Question 48

function of hypothenar muscles

Answer 48

move pinky

Question 49

function of midpalmar muscles

Answer 49

all muscles flex MP joints and extend PIP/DIP joints of fingers 2-5

Question 50

name the midpalmar muscles

Answer 50

``` lumbricals (4) palmar interossei (3) dorsal interossei (4) ```

Question 51

PAD-DAB reference meaning

Answer 51

(Palmar interossei ADduct, Dorsal interossei ABducts)