Muscles of the Upper Limb Flashcards

1
Q

What are the anterior axo-appendicular muscles?

A

pectoralis major
pectoralis minor
subclavius
serratus anterior

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2
Q

what does the pectoralis minor connect?

A

ribs with coracoid process

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3
Q

what does the serratus anterior connect?

A

ribs to the medial border of the scapula

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4
Q

what is the function of the pectoralis major?

A

flexes, medially rotates, adducts arm

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5
Q

what is the function of the pectoralis minor

A

stabilizes the scapula

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6
Q

what is the function of the subclavius

A

depresses the clavicle

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7
Q

what is the function of the serratus anterior?

A

protracts and rotates scapula

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8
Q

what are the posterior axo-appendicular muscles?

A

trapezius
latissimus dorsi
levator scapulae
rhomboids

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9
Q

what is the function of the trapezius?

A

stabilizes, elevates, retracts, and rotates scapula

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10
Q

what is the function latissimus dorsi?

A

adducts, extends, medially rotates the arm

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11
Q

what is the function of the levator scapulae?

A

elevates scapula

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12
Q

what is the function of the rhomboids?

A

stabilize scapula

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13
Q

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

A

within the intertubercular sulcus, thoracolumbar fascia

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14
Q

what are the intrinsic shoulder muscles?

A

deltoid
teres major

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15
Q

what is the function of the deltoid?

A

abducts arm

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16
Q

what is the function of the teres major?

A

adducts, extends, medially rotates the arm

17
Q

what are the rotator cuff muscles?

A

supraspinatus
infraspinatus
teres minor
subscapularis

18
Q

what is the function of the supraspinatus?

A

initiates abduction of arm

19
Q

what is the function of the infraspinatus?

A

laterally rotates the arm

20
Q

what is the function of the teres minor?

A

laterally rotates arm

21
Q

what is the function of the subscapularis?

A

medially rotates the arm

22
Q

what is the axilla?

A

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

23
Q

what forms the anterior boundary of the axilla?

A

subclavius, pectoralis major and minor

24
Q

what forms the posterior boundary of the axilla?

A

scapula and subscapularis

25
Q

what forms the medial boundary of the axilla?

A

serratus posterior and ribs

26
Q

what forms the lateral boundary of the axilla?

A

intertubercular groove of humerus

27
Q

what forms the base of the axilla?

A

skin and axillary fascia

28
Q

what does the axilla contain?

A

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

29
Q

what are the anterior arm muscles?

A

coracobrachialis
biceps brachii
brachialis
brachioradialis

30
Q

where does the brachioradialis originate on? insert on?

A

originates on lateral supracondylar ridge, inserts on radius

31
Q

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

A

brachioradialis

32
Q

what is the function of the coracobrachialis?

A

flexes and adducts arm

33
Q

what is the function of the biceps brachii?

A

flexes and supinates forearm

34
Q

what is the function of the brachialis?

A

flexes forearm

35
Q

what is the function of the brachioradialis?

A

flexes forearm

36
Q

what are the posterior arm muscles?

A

triceps brachii
anconeus

37
Q

what is the function of the triceps brachii?

A

extends forearm

38
Q

what is the function of the anconeus?

A

extends forearm

39
Q
A