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Anatomy 1 > Back, Shoulder and Humerus > Flashcards

Back, Shoulder and Humerus Flashcards

1
Q

Label the structures in the image

A
  1. Clavicle
  2. Acromioclavicular Joint
  3. Glenohumeral Joint
  4. Scapula
  5. Rib
  6. Humerus
  7. Sternoclavicular Joint
  8. Sternum
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2
Q

Label the bones in the image

A
  1. Clavicle
  2. Scapula
  3. Rib
  4. Humerus
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3
Q

Identify the bones of the pectoral girdle

A

clavicle 1 and scapula 4

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4
Q

1

A

Suprascapular Notch

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5
Q

2

A

Superior Angle

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6
Q

3

A

Medial Border or vertebral border

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7
Q

4

A

Lateral Border or axillary border

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8
Q

5

A

Coracoid process

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9
Q

6

A

Acromion

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10
Q

7

A

Glenoid Cavity

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11
Q

8

A

Inferior angle

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12
Q

9

A

Subscapular fossa

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13
Q

10

A

Superior border

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14
Q

11

A

Spine

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15
Q

12

A

Infraspinous fossa

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16
Q

13

A

Lateral Angle

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17
Q

14

A

Supraspinous fossa

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18
Q

1

A

Conoid tubercle

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19
Q

2

A

Impression for the costoclavicular ligament

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20
Q

3

A

Acromial end

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21
Q

4

A

Sternal end

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22
Q

5

A

Trapezoid line

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23
Q

6

A

Subclavian groove

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24
Q

What is the pectoral girdle?

A

Group of muscles that ORIGINATE somewhere on the posterior AXIAL SKELETON and produce ACTIONS at the SCAPULA

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25
Q

Label the POSTERIOR and ANTERIOR muscles that make up the pectoral girdle

A

Posterior: trapezius, lavator scapulae, rhomboid major AND minor

Anterior: Subclavious, pectoralis MINOR, and serratus anterior

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26
Q

Label the POSTERIOR muscles that are part of the pectoral girdle

A

Trapezius 11, 2 & 3, levator scapula 7, rhomboid minor 8, rhomboid major 9

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27
Q

Label the anterior muscles of the pectoral girdle

A
  1. Subclavius
  2. Pectoralis minor
  3. Serratus anterior
    (2. Pectoralis major was labeled only for orientation, it’s not an anterior pectoral girdle muscle bc it inserts on the humerus not scapula)
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28
Q

Label the posterior and anterior muscles of the pectoral girdle in the image. Which muscles cannot be seen?

A
  1. Lavator scapulae
  2. Descending superior trapezious
  3. Subclavius
  4. Teres minor
  5. Serratus anterior

*Can’t see rhomboid minor and major*

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29
Q

Origin, insertion, action and innervation of the trapezius

A

O - Superior nuchal line, external occiptal protuberance, ligamentum nuchae, spinous process C7 to T1-T12 vertebrae (varies per body)

I - Lateral 1/3rd of clavicle, acromion & spine of scapula

A - Elevates and retracts scapula (might also depress but it wasn’t in ppt)

Inn- Accessory n. (CN XI)*

*Only muscle innervated by a cranial nerve

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30
Q

Origin, insertion, action and innervation of the levator scapulae

A

O - Transverse process of C1-C4 vertebrae

I - Vertebral (medial) border of scapula near superior angle

A - Elevates scapula

Inn - Dorsal scapular n. (C4, C5)

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31
Q

Origin, insertion, action and innervation of the rhomboid minor

A

O - Spinous process C7 & T1 vertebrae

I - Vetebral (medial) border of scapula

A - Retracts scapula

Inn - Dorsal scapular n (C5)

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32
Q

Origin, insertion, action and innervation of the rhomboid major

A

O - Spinous process T2 - T5 vertebrae

I - Vertebral (medial) border of scapula (inferior to scap. spine)

A - Retracts scapula

Inn - Dorsal scapular n (C4, C5)

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33
Q

Origin, insertion, action and innervation of pectoralis minor

A

O - Anterior surface of ribs 3-5

I - Coracoid process of the scapula

A - Protracts scapula (punching) and elevates ribs to asssist in inhalation

Inn - Medial AND Lateral pectoral nerve

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34
Q

Origin, insertion, action and innervation of serratus anterior

A

O - Lateral surface of ribs 1-8

I - Anterior surface of medial border of the scapula

A - Holds scapula against thoracic wall and Protracts (punch) scapula

Inn - Long thoracic nerve

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35
Q

List the different movements of the scapula

A
  • Elevation / Depression
  • Protraction (Abduction) / Retraction (Adduction)
  • Upward rotation / downward rotation
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36
Q

Demonstrate elevation / depression of the scapula

A

Gliding the shoulders up towards the ear and then back down

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37
Q

What muscles elevate and depress the scapula?

A

Elevate: descending superior trapezius (11) and levator scapulae (7)

Depression: ascending inferior trapezius (3) (not stated in ppt)

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38
Q

Demonstrate protraction / retraction of the scapula

A

Protraction: rounding the shoulder blades forward like

PUNCHING

retraction: pinching the shoulder blades towards each other

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39
Q

What muscles aid in protraction and retraction of the scapula?

A

Protraction: serratus anterior and pectoralis minor (not pictured)

Retraction: rhomboid major / minor, transverse middle trapezius

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40
Q

Demonstrate upward / downward rotation of the scapula

A

Upward: lift the arms up and scapula will follow

Downward: return arms downward to side

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41
Q

What muscles aid in upward and downward rotation of the scapula?

A

Upward: Trapezius (superior and inferior) and serratus anterior

Downward: rhomboid major and minor, lavator scapulae, pectoralis minor, and Latissimus dorsi (not pictured)

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42
Q

What 4* joints make up the shoulder joint?

A
  1. Sternoclavicular joint
  2. Acromioclavicular joint
  3. Glenohumeral joint

*4. Scapulothoracic joint

* not a true “anatomical” joint

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43
Q

In the upper body, what joint is the only articulation between the upper extremity and the axial skeleton?

A

Sternoclavicular joint (sternum and clavicle)

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44
Q

1

A

Articulate disk (capsule and ligaments removed anteriorly to expose joint)

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45
Q

2

A

Interclavicular ligament

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46
Q

3

A

Anterior Sternoclavicular ligament

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47
Q

4

A

Costoclavicular ligament

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48
Q

5

A

Clavicular notch

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49
Q

6

A

First costal cartilage

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50
Q

7

A

Manubrium of sternum

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51
Q

8

A

Attachment site for rib II

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52
Q

9

A

Sternal angle

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53
Q

Label the anterior ligaments of the Sternoclavicular joint

A
  1. Interclavicular ligament
  2. Anterior sternoclavicular ligaments
  3. Costoclavicular ligament
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54
Q

Label the posterior ligaments of the sternoclavicular joint

A
  1. Posterior Sternoclavicular ligaments
  2. Interclavicular ligament
  3. Costoclavicular ligament
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55
Q

What ligaments make up the acromioclavicular joint of the shoulder?

A
  1. Acromioclavicular ligament
  2. Coracoclavicular ligament (trapezoid ligament and the conoid ligament)
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56
Q

1

A

Acromioclavicular ligament

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57
Q

2

A

Coracoclavicular ligament

58
Q

3

A

Trapezoid ligament

59
Q

4

A

Conoid ligament

60
Q

What is the main purpose of the Coracoclavicular joint?

A

Stabilizing the acromioclavicular joint *Coracoclavicular are stronger extrinsic ligaments

61
Q

What ligaments make up the glenohumeral joint of the shoulder?

A
  1. Coracohumeral ligament
  2. Coracoacromial ligament
  3. Glenohumeral ligament
  4. Transverse ligament*
62
Q

Label 1 & 2

A
  1. Glenoid cavity
  2. Glenoid labrum = layer of firbocartiledge within the Glenoid cavity
63
Q

Label the skeletal structures 4-7

A
  1. Glenoid cavity
  2. Lesser tubercle of humerus
  3. Greater tubercle of humerus
  4. Coracoid process
64
Q

1

A

Articular capsule = surrounds Glenohumeral joint from Glenoid cavity to anatomical neck of humerus

65
Q

2

A

Glenohumeral ligaments

66
Q

3

A

Coracohumeral ligament

67
Q

1

A

Transverse humeral ligament

68
Q

2

A

Coracohumeral ligament

69
Q

3

A

Superior Glenohumeral ligament

70
Q

4

A

Middle Glenohumeral ligament

71
Q

5

A

Inferior Glenohumeral ligament

72
Q

1

A

Acromioclavicular ligament

73
Q

2

A

Coracoacromial ligament

74
Q

3

A

Coracoclavicular ligament

75
Q

Identify the bone

A

Anterior right humerous

76
Q

A

A

Greater tubercle

77
Q

B

A

Lesser tubercle

78
Q

C

A

Intertubercular sulcus

79
Q

D

A

Lateral epicondyle

80
Q

E

A

Radial fossa

81
Q

F

A

Capitulum

82
Q

G

A

Trochlea

83
Q

H

A

Medial epicondyle

84
Q

I

A

Coronoid fossa

85
Q

J

A

Body

86
Q

K

A

Deltoid tuberocity

87
Q

Identify the bone

A

Right Posterior humerus

88
Q

A

A

Head

89
Q

B

A

Greater tubercle

90
Q

C

A

Lateral epicondyle

91
Q

D

A

Body

92
Q

E

A

Deltoid tuberocity

93
Q

F

A

Medial epicondyle

94
Q

G

A

Olecranon fossa

95
Q

1

A

Medial Supra-epicondyle ridge

96
Q

2

A

Lateral supra-epicondyle ridge

97
Q

3

A

Radial fossa

98
Q

4

A

Coronoid fossa

99
Q

5

A

Lateral epicondyle for extensors

100
Q

6

A

Medial epicondyle for flexors

101
Q

7

A

Capitulum

102
Q

8

A

Trochlea

103
Q

9

A

Olecranon fossa

104
Q

10

A

Lateral epicondyle

105
Q

11

A

Extensors

106
Q

12

A

Anconeus

107
Q

13

A

Trochlea

108
Q

14

A

Medial epicondyle for

109
Q

15

A

Flexors

110
Q

16

A

Ulnar nerve

111
Q

What is the shoulder girdle?

A

Group of muscles that all ORIGINATE on the SCAPULA and produce ACTIONS at the GLENOHUMERAL JOINT

112
Q

What muscles make up the shoulder girdle?

A

Rotator cuff muscles (subscapularis, Supraspinatus, Infraspinatus, Teres minor)

Deltoid and Teres major

113
Q

1

A

Spine of scapula

114
Q

2

A

Deltoid

115
Q

3

A

Supraspinatus

116
Q

4

A

Infraspinatus

117
Q

5

A

Teres minor

118
Q

6

A

Teres major

119
Q

What is this muscle

A

Subscapularis (anterior shoulder view)

120
Q

What is the rotator cuff?

A

A group of muscles that ORIGINATES somewhere on the SCAPULA and produces ACTIONS at the GLENOHUMERAL JOINT

121
Q

List the rotator cuff muscles

A

Supraspinatus (1), subscapularis (2), infraspinatus (3), Teres minor (4)

122
Q

1

A

Supraspinatus m

123
Q

2

A

Infraspinatus m

124
Q

3

A

Teres minor

125
Q

4

A

Subscapularis

126
Q

Origin, insertion, action and innervation of subscapularis m

A

O - subscauplar fossa of scaupla

I - lesser tubercle of humerus

A - Medially (internally) rotates arm (shoulder)

Inn - Upper & lower subscapularis n.

127
Q

Origin, insertion, action and innervation of Supraspinatus

A

O - Supraspinous fossa of scapula

I - Greater tubercle of humerus

A - Abducts arm (shoudler)

Inn - Suprascapular n (C5 &C6)

128
Q

Origin, insertion, action and innervation of Infraspinatus

A

O - Infraspinous fossa of scapula

I - Greater tubercle of humerus

A - Laterally (externally) rotates arm (shoudler)

Inn - Suprascapular n. (C5 &C6)

129
Q

Origin, insertion, action and innervation of Teres minor

A

O - Lateral border of scapula

I - Greater tubercle of humerus

A - Laterally (externally) rotates arm (shoudler)

Inn - Axillary n.

130
Q

Demonstrate Abduction of the shoudler

A

Raising arm out to the side

131
Q

Demonstrate lateral (external) rotation of the arm

A

Elbows tucked at side, forearms swing out

132
Q

Demonstrate medial (internal) rotation of the arm

A

Bringing your hand to your opposite hip with your elbow bent at 90 degrees

133
Q

Origin, insertion, action and innervation of deltoid

A

O - later 1/3rd of clavicle, acromion, & spine of scapula

I - Deltoid tuberoisiy of hermous

A -

Anterior part: flexes arm (shoudler) and medially (internally) rotates arm

Middle part: Abducts arm

Posterior part: Extends arm and laterall (externally) rotates arm

Inn - Axillary nerve

134
Q

Origin, insertion, action and innervation of Teres major

A

O - Inferior angle of scapula

I - Lesser tubercle of humerous

A - Adducts, Extends, and Medially (internally) rotates arm

Inn - lower subscapular n.

135
Q

Origin, insertion, action and innervation of the pectoralis major muscle

A

O - Medial half of clavicle, sternum, costal cartiledge of ribs 2-6

I - Crest of greater tubercle of humerus

A - Adducts arm (Shoulder) and medially (internally) rotates arm

Inn - medial AND lateral pectoral nerve

136
Q

Demonstrate flexion / extension of the arm (shoulder)

A

Flexion: raise arm out in front

Extension: lift arms behind, perpendicular to back

137
Q

Demonstrate adduction / abduction of arm (shoulder)

A

Abduction: raise arm out to the side of the body

Adduction: return arms to the side of the body

138
Q

What special areas of the back can be seen in this photo?

A
  1. Quadrangular space
  2. Triangular space
  3. Triangular interval
139
Q

Identify the quadrangular space in the photo

A
140
Q

Label the borders of the quadrangular space

A
  1. Teres major
  2. Long head triceps brachii
  3. Lateral head triceps brachii (OR Lateral shaft of humerous)
  4. Teres minor
141
Q

Label the borders of the triangular space

A

Teres minor

Teres major

Long head triceps brachii

142
Q

Label the borders of the triangular interval

A

Long head triceps brachii

Lateral head triceps brachii (OR Lateral shaft of humerous)

Teres major

Anatomy 1 (5 decks)

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