Muscles of the Upper Limb

Question 1

What are the anterior axo-appendicular muscles?

Answer 1

pectoralis major
pectoralis minor
subclavius
serratus anterior

Question 2

what does the pectoralis minor connect?

Answer 2

ribs with coracoid process

Question 3

what does the serratus anterior connect?

Answer 3

ribs to the medial border of the scapula

Question 4

what is the function of the pectoralis major?

Answer 4

flexes, medially rotates, adducts arm

Question 5

what is the function of the pectoralis minor

Answer 5

stabilizes the scapula

Question 6

what is the function of the subclavius

Answer 6

depresses the clavicle

Question 7

what is the function of the serratus anterior?

Answer 7

protracts and rotates scapula

Question 8

what are the posterior axo-appendicular muscles?

Answer 8

trapezius
latissimus dorsi
levator scapulae
rhomboids

Question 9

what is the function of the trapezius?

Answer 9

stabilizes, elevates, retracts, and rotates scapula

Question 10

what is the function latissimus dorsi?

Answer 10

adducts, extends, medially rotates the arm

Question 11

what is the function of the levator scapulae?

Answer 11

elevates scapula

Question 12

what is the function of the rhomboids?

Answer 12

stabilize scapula

Question 13

where does the latissimus dorsi insert? what does the latissimus dorsi form?

Answer 13

within the intertubercular sulcus, thoracolumbar fascia

Question 14

what are the intrinsic shoulder muscles?

Answer 14

deltoid
teres major

Question 15

what is the function of the deltoid?

Answer 15

abducts arm

Question 16

what is the function of the teres major?

Answer 16

adducts, extends, medially rotates the arm

Question 17

what are the rotator cuff muscles?

Answer 17

supraspinatus
infraspinatus
teres minor
subscapularis

Question 18

what is the function of the supraspinatus?

Answer 18

initiates abduction of arm

Question 19

what is the function of the infraspinatus?

Answer 19

laterally rotates the arm

Question 20

what is the function of the teres minor?

Answer 20

laterally rotates arm

Question 21

what is the function of the subscapularis?

Answer 21

medially rotates the arm

Question 22

what is the axilla?

Answer 22

pyramid-shaped space that spans the root of the neck and arm

Question 23

what forms the anterior boundary of the axilla?

Answer 23

subclavius, pectoralis major and minor

Question 24

what forms the posterior boundary of the axilla?

Answer 24

scapula and subscapularis

Question 25

what forms the medial boundary of the axilla?

Answer 25

serratus posterior and ribs

Question 26

what forms the lateral boundary of the axilla?

Answer 26

intertubercular groove of humerus

Question 27

what forms the base of the axilla?

Answer 27

skin and axillary fascia

Question 28

what does the axilla contain?

Answer 28

portions of the brachial plexus axillary artery and vein lymph nodes adipose

Question 29

what are the anterior arm muscles?

Answer 29

coracobrachialis biceps brachii brachialis brachioradialis

Question 30

where does the brachioradialis originate on? insert on?

Answer 30

originates on lateral supracondylar ridge, inserts on radius

Question 31

which muscle of the anterior arm is not innervated by the musculocutaneous nerve?

Answer 31

brachioradialis

Question 32

what is the function of the coracobrachialis?

Answer 32

flexes and adducts arm

Question 33

what is the function of the biceps brachii?

Answer 33

flexes and supinates forearm

Question 34

what is the function of the brachialis?

Answer 34

flexes forearm

Question 35

what is the function of the brachioradialis?

Answer 35

flexes forearm

Question 36

what are the posterior arm muscles?

Answer 36

triceps brachii anconeus

Question 37

what is the function of the triceps brachii?

Answer 37

extends forearm

Question 38

what is the function of the anconeus?

Answer 38

extends forearm