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gross anatomy DPT > bb ch 7, 42, 45 - quiz 3 > Flashcards

bb ch 7, 42, 45 - quiz 3 Flashcards

1
Q

What is the origin of trapezius?

A

Posterior skull (occipital bone)
Spinous processes of all c vertebrae via ligament (ligamentum nuchae)
Spinous process of all t vertebrae

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2
Q

What is the insertion of trapezius?

A

lateral 1/3 of clavicle
acromion
crest of spine of scapula, superior lip (origin of deltoid)

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3
Q

What is the action of trapezius?

A

Upward rotation of scapula
Depress/elevate scapula and lateral clavicle

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4
Q

What is the innervation of trapezius?

A

CN XI accessory n
Ventral rami of C3 + C4

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5
Q

What is the origin of latissimus dorsi?

A

lower 3-4 ribs
spinous processes of lower 6 T vertebrae
Spinous processes of L + S vetebrae via aponeurosis
Iliac crest

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6
Q

What is the insertion of latissimus dorsi?

A

Intertubercular groove of humerus

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7
Q

What is the action of latissimus dorsi?

A

Add arm
ext arm
IR arm

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8
Q

What is the innervation of latissimus dorsi?

A

Thoracodorsal n.

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9
Q

What is the origin of levator scapulae?

A

Transverse processes of CV1-CV4

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10
Q

What is the insertion of levator scapulae?

A

Medial border of scapula, superior to scapular spine

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11
Q
A
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12
Q

What is the action of levator scapulae?

A

elevation of scapula

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13
Q

What is the innervation of levator scapulae?

A

Ventral rami of C3 and C4

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14
Q

What is the origin of rhomboid minor?

A

Spinous processes of CV7 and TV1

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15
Q

What is the insertion of rhomboid minor?

A

medial border of scapula at scapular spine

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16
Q

What is the action of rhomboid minor?

A

Adduction of scapula

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17
Q

What is the innervation of rhomboid minor?

A

Dorsal scapular nerve

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18
Q

What is the origin of rhomboid major?

A

Spinous processes of TV2 to TV5

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19
Q

What is the insertion of rhomboid major?

A

medial border of scapula inferior to scapular spine

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20
Q

What is the action of rhomboid major?

A

adduction of scapula

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21
Q

What is the innervation of rhomboid major?

A

dorsal scapular nerve

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22
Q

What is the other name for erector spinae?

A

Sacrospinalis

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23
Q

How many muscles is erector spinae made of? Which ways are they oriented?

A

3 longitudinal muscles

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24
Q

Where does erector spinae split into three muscles? What are the names, specifically medial to lateral? Briefly describe each of the three.

A

Splits above the 12th rib

Spinalis - cm wide muscle along spine
Longissimus - longest, reaches the skull
Iliocostalis - most lateral, ilium to ribs, where it inserts

I LOVE SPAGHETTI

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25
Q

Where does erector spinae originate?

A

Sacrum and ilium

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25
Q

What is the innervation of erector spinae and muscles that split off of it?

A

Segmental innervation from dorsal rami

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25
Q

What is the action of erector spinae?

A

It is an important postural muscle that holds the spine erect by extending the vertebral column

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26
Q

What is the origin of deltoid?

A

Crest of spine of scapula, inferior lip
Acromion
Lateral third of clavicle

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27
Q

What is the insertion of deltoid?

A

deltoid tuberosity of humerus

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28
Q

What is the action of deltoid?

A

Clavicular (ant.): flex arm, IR arm
Acromial (middle): abd arm
Spinous (post.): extend arm, ER arm

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29
Q

What is the innervation of deltoid?

A

axillary n

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30
Q

What is the origin of supraspinatus?

A

supraspinous fossa

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31
Q

What is the insertion of supraspinatus?

A

greater tubercle of humerus, superior third

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32
Q

What is the action of supraspinatus?

A

abd arm 0-30 degrees in scapular plane

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33
Q

What is the innervation of supraspinatus?

A

suprascapular n.

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34
Q

Where is the supraspinatus tendon and what is likely in this location?

A

Between acromion and head of humerus, subject to impingement, degeneration, rupture

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35
Q

What is the origin of infraspinatus?

A

infraspinous fossa

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36
Q

What is the insertion of infraspinatus?

A

greater tubercle of humerus, middle third

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37
Q

What is the action of infraspinatus?

A

ER arm

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38
Q

What is the innervation of infraspinatus?

A

suprascapular n.

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39
Q

What is the origin of teres minor?

A

Lateral margin of infraspinous fossa

40
Q

What is the insertion of teres minor?

A

greater tubercle of humerus, inferior third

41
Q

What is the action of teres minor?

42
Q

What is the innervation of teres minor?

A

axillary n.

43
Q

What is the origin of teres major?

A

inferior angle of scapula, dorsal surface

44
Q

What is the insertion of teres major?

A

crest of lesser tubercle of humerus

45
Q

What is the action of teres major?

A

Add arm
IR arm

46
Q

What is the innervation of teres major?

A

lower subscapular n.

47
Q

What is the origin of subscapularis?

A

subscapular fossa

48
Q

What is the insertion of subscapularis?

A

Lesser tubercle of humerus
crest of lesser tubercle of humerus

49
Q

What is the action of subscapularis?

50
Q

What is the innervation of subscapularis?

A

Upper subscapular nerve
Lower subscapular nerve

51
Q

What is the job of the rotator cuff?

A

To keep the humeral head in glenoid fossa

52
Q

What is the triangle of auscultation of the shoulder? What are the borders?

A

Open space where doctors listen to your lungs

Inferior border: latissimus dorsi
Medial: trapezius
Lateral: medial border of scapula

53
Q

What makes up the floor of the triangle of auscultation?

A

Rhomboid major
Chest wall

54
Q

What are the boundaries for the triangular space of the shoulder?

A

Superior: teres minor
Inferior: teres major
Anterior: subscapularis
Lateral: long head of triceps brachii

55
Q

What are the contents of the triangular space of the shoulder?

A

Circumflex scapular artery

56
Q

What are the boundaries of the quadrangular space of the shoulder?

A

Superior: teres minor
Inferior: teres major
Anterior: subscapularis
Medial: long head of triceps brachii
Lateral: surgical neck of humerus

57
Q

What are the contents of the quadrangular space of the shoulder?

A

Posterior circumflex humeral artery
Axillary nerve

58
Q

What are the boundaries of the triangular interval of the shoulder?

A

Superior: teres major
Medial: long head of triceps
Lateral: lateral head of triceps

59
Q

What are the contents of the triangular interval of the shoulder?

A

Profunda brachii artery
Radial nerve

60
Q

What is the origin of pronator teres? Which compartment of the forearm is it in?

A

Superficial: medial supracondylar ridge of humerus, medial epicondyle of humerus
Deep: coronoid process of ulna

ANTERIOR SUPERFICIAL

61
Q

What is the insertion of pronator teres?

A

middle lateral radius

62
Q

What is the action of pronator teres?

A

pronate forearm

63
Q

What is the innervation of pronator teres?

A

median nerve

64
Q

What is the origin of flexor carpi radialis? Which compartment of the forearm is it in?

A

medial epicondyle of humerus

ANTERIOR SUPERFICIAL

65
Q

What is the insertion of flexor carpi radialis?

A

Base of 2nd and 3rd metacarpal, anterior surface

66
Q

What is the action of flexor carpi radialis?

A

Flex and abd hand

67
Q

What is the innervation of flexor carpi radialis?

A

Median nerve

68
Q

What is the origin of palmaris longus? Which compartment of the forearm is it in?

A

medial epicondyle of humerus

ANTERIOR SUPERFICIAL

69
Q

What is the insertion of palmaris longus?

A

Palmar aponeurosis
Flexor retinaculum

70
Q

What is the action of palmaris longus?

A

weak hand flexion

71
Q

What is the innervation of palmaris longus?

72
Q

What is the origin of flexor carpi ulnaris? Which compartment of the forearm is it in?

A

Humeral: medial epicondyle of humerus
Ulnar: olecranon process of ulna. posterior shaft of ulna

ANTERIOR SUPERFICIAL

73
Q

What is the insertion of flexor carpi ulnaris?

A

Pisiform
Hamate via pisohamate ligament
Base of 5th metacarpal via pisometacarpal joint

74
Q

What is the action of flexor carpi ulnaris?

A

flex and add hand

75
Q

What is the innervation of flexor carpi ulnaris?

76
Q

Muscles originating from the medial epicondyle share the same tendon of origin. What is it called?

A

Common flexor tendon

77
Q

What is the origin of flexor digitorum superficialis? Which compartment of the forearm is it in?

A

Humeral: medial epicondyle of humerus
Ulnar: coronoid process of ulna
Radial: proximal anterior radius

ANTERIOR INTERMEDIATE

78
Q

What is the insertion of flexor digitorum superficialis?

A

Base of middle phalanx of digits 2-5, anterior surface

79
Q

What is the action of flexor digitorum superficialis?

A

Flexion of middle phalanx onto proximal phalanx at proximal IP joint of digits 2-5

80
Q

What is the innervation of flexor digitorum superficialis?

81
Q

What lies under the arch of FDS?

A

Median nerve and ulnar artery

82
Q

Which tendons lie anterior to the others in anterior intermediate muscle area?

A

Tendons 3, 4 lie anterior to tendons 2, 5

83
Q

What is the origin of flexor pollicis longus? Which compartment of the forearm is it in?

A

anterior distal radius

ANTERIOR DEEP

84
Q

What is the insertion of flexor pollicis longus?

A

base of distal phalanx of thumb

85
Q

What is the action of flexor pollicis longus?

A

flexion of distal phalanx of thumb at IP joint

86
Q

What is the innervation of flexor pollicis longus?

87
Q

What is the origin of flexor digitorum profundus? Which compartment of the forearm is it in?

A

Proximal 3/4 of anterior, medial, posterior ulna
Coronoid process of ulna

ANTERIOR DEEP

88
Q

What is the insertion of flexor digitorum profundus?

A

base of distal phalanx of digits 2-5, anterior surface

89
Q

What is the action of flexor digitorum profundus?

A

Flexion of distal phalanx onto middle phalanx at distal IP joint of digits 2-5

90
Q

What is the innervation of flexor digitorum profundus?

A

Lateral: AIN
Medial: ulnar n.

91
Q

What is the origin of pronator quadratus? Which compartment of the forearm is it in?

A

Anterior surface of distal 1/4 of ulna

ANTERIOR DEEP

92
Q

What is the insertion of pronator quadratus?

A

anterior surface of the distal 1/4 of the radius

93
Q

What is the action of pronator quadratus?

A

pronation of forearm

94
Q

What is the innervation of pronator quadratus?

95
Q

Follow the path of the median nerve.

A

Made of lateral and medial roots of the median nerve via the brachial plexus

Into medial compartment of arm with no innervation

Through the cubital fossa, most medial by brachial artery and within CF, gives off AIN

Enters forearm between two heads of origin of pronator teres

Courses to proximal forearm, deep to arch of FDS with ulnar artery

Goes between FDS and FDP

Innervates these muscles of the forearn:
PRONATOR TERES
FLEXOR CARPI RADIALIS
PALMARIS LONGUS
FLEXOR DIGITORUM SUPERFICIALIS

Proximal to flexor retinaculum, gives off the palmar branch then goes anterior to flexor retinaculum to supply hand cutaneously

Goes through carpal canal and enters hand

96
Q

Follow the path of the anterior interosseous nerve.

A

Comes off as a branch of median nerve within cubital fossa

Courses distal along anterior surface of interosseous membrane between FPL and FDP

Innervates 2.5 muscles in the forearm:
FLEXOR DIGITORUM PROFUNDUS*
FLEXOR POLLICIS LONGUS
PRONATOR QUADRATUS
*: only the lateral half of this muscle

97
Q

Follow the path of the ulnar nerve.

A

Comes off of the medial cord of the brachial plexus after the medial root is given off

Goes through medial compartment of arm with no innervation

Pierces posterior lamina of medial intermuscular septum passing from medial to posterior compartment of arm

Goes posterior to medial epicondyle with superior ulnar collateral artery

Enters forearm by passing between two heads of origin of FCU

Goes between FCU and FDP

Innervates 1.5 muscles in the forearm:
FCU
FDP*
*: only medial half of this muscle

courses with ulnar artery in distal half of forearm

Gives off dorsal branch to supply hand cutaneously

Proximal to flexor retinaculum, also gives off palmar branch that courses anterior to flexor retinaculum to supply hand cutaneously

In wrist, courses with ulnar artery as it enters the hand by passing anteriorly to flexor retinaculum, outside carpal canal and through Guyon’s Canal

98
Q

Follow the path of the radial artery.

A

Begins as terminal branch of brachial artery within cubital fossa

Courses distal in forearm with superficial branch of radial nerve deep to brachioradialis

Through anatomical snuffbox and enter dorsum of hand

99
Q

Follow the path of the ulnar artery.

A

Begins as terminal branch of brachial artery within cubital fossa

In proximal forearm, gives off common interosseous artery

Goes deep to arch of FDS with median nerve

Courses the distal half of forearm with ulnar nerve between FCU and FDP

In the wrist, courses with ulnar nerve as it enters the hand anteriorly to flexor retinaculum, outside carpal canal and through Guyon’s Canal

100
Q

Follow the path of the common interosseous artery.

A

Begins as branch off of ulnar artery in proximal forearm

Courses a short distance before dividing into two terminal branches:

ANTERIOR INTEROSSEOUS ARTERY
Distal on the anterior surface of interosseous membrane
Supplies muscles of anterior forearm and give a branch to the wrist
Ends by anastomosing with posterior interosseous artery

POSTERIOR INTEROSSEOUS ARTERY
Distal on posterior surface of interosseous membrane
Supplies muscles of posterior forearm and gives branch of the wrist
Ends by anastomosing with anterior interosseous artery

gross anatomy DPT (5 decks)

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