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Anatomy Upper Extremity > Upper Extemitiy (muscles, innervations, actions, etc) > Flashcards

Upper Extemitiy (muscles, innervations, actions, etc) Flashcards

1
Q

proximal attachment of pec major?

A

clavicular head: anterior surface of clavicle
sternocostal head: anterior surface of sternum, superior 6 costal cartilages

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2
Q

distal attachment of pec major

A

interubtercular sulcus/ groove of humerus

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3
Q

pec major innervation

A

lateral and medial pectoral nerve

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4
Q

pec major actions individual and together

A

individual: clavicular head flexes humerus and sternocostal head extends it from flexed postion
together: adducts and medially rotates humerus

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5
Q

pec minor proximal attachment

A

3rd-5th ribs

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6
Q

pec minor distal attachment

A

coracoid process of scapula

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7
Q

pec minor innervation

A

medial pectoral nerve

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8
Q

pec minor actions

A

depression and protraction of scapula

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9
Q

serratus anterior proximal attachment

A

1st-8th rubs

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10
Q

serratuis anterior distal attachment

A

medial border of scapula

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11
Q

serratus anterior innervation

A

long thoracic nerve

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12
Q

serratus anterior actions

A

protraction and upward rotation of scapuls

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13
Q

proximal attachment of deltoid

A

lateral third of clavicle
acromion and spine of scap.

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14
Q

distal attachment of deltoid

A

deltoid tuberosity of humerus

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15
Q

deltoid innervation

A

axillary nerve

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16
Q

deltoid actions

A

anterio: flexion and medially rotates arm
middle: abducts arm
posterior: extension and laterally rotates arm

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17
Q

supraspinatus proximal attachment

A

supraspinous fossa of scapula

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18
Q

supraspinatus distal attachmentg

A

greater tubercle of humerus

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19
Q

supraspinatus innervatoin

A

suprascapular nerve

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20
Q

supraspinatus actions

A

initiates abduction of arm

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21
Q

infraspinatus proximal attachment

A

infraspinous fossa of scapula

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22
Q

infraspinatus distal attachment

A

greater tubercle of humerus

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23
Q

infraspinatus innervation

A

suprascapular nerve

24
Q

infraspinatus actions

A

laterally rotates arm

25
Q

teres minor proximal attachment

A

lateral border of scapula

26
Q

teres minor distal attachment

A

greater tubercle of humerus

27
Q

teres minor innervation

A

axillary nerve

28
Q

teres minor action

A

laterally rotates arm

29
Q

teres major proximal attachment

A

inferior angle of scapula

30
Q

teres major distal attachment

A

intertubercular sulcus of humerus

31
Q

teres major innervation

A

lower subscapular nerve

32
Q

teres major actions

A

extends, adducts, medially rotates arm

33
Q

subscapularis proximal attachment

A

subscapular fossa

34
Q

subscapularis distal attachment

A

lesser tubercle of humerus

35
Q

subscapularis innervation

A

upper and lower subscapular nerves

36
Q

subscapularis actions

A

medially rotates arm
helps hold head of humerus in glenoid cavity

37
Q

triceps brachii proximal attachments

A

long head: infraglenoid tubercle of scapula
lateral head: posterior surface of humerus, superior to radial groove
medial head: posterior surface of humerus, inferior to radial groove

38
Q

triceps brachii distal attachments

A

olecranon of ulna

39
Q

triceps brachii innervations

A

radial nerve

40
Q

triceps brachii actions

A

extends forearm

41
Q

anconeus proximal attachment

A

lateral epicondyle of humerus

42
Q

anconeus distal attachment

A

lateral surface of olecranon

43
Q

anconeus innervation

A

radial nerve

44
Q

anconeous actions

A

assists trcieps in extending arm

45
Q

biceps brachii proximal attachment

A

short head: coracoid process of scapuls
long head: supraglenoid tubercle of scapula

46
Q

biceps brachii distal attachment

A

tuberosity of radius
b

47
Q

biceps brachii innervation

A

musculocutaneous nerve (C5,6,7)

48
Q

biceps brachii actions

A

supinates forearm and flexes forearm/elbow in supine

49
Q

coracobrachialis proximal attachment

A

coracoid process of scapuls

50
Q

coracobrachialis distal attachment

A

middle third of humerus

51
Q

coracobrachialis innervation

A

musculocutaneous nerve (C5,6,7)

52
Q

coracobrachialis actions

A

flexes and adducts shoulder/arm

53
Q

brachialis proximal attachment

A

distal anterior humerus

54
Q

brachialis distal attachment

A

coronoid process and tuberosity ulna

55
Q

brachialis innervation

A

musculocutaneous (C5,C6)

56
Q

brachialis actions

A

flexes forearm/elbox in all postions

Anatomy Upper Extremity (12 decks)

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