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Anatomy > Pectoral Girdle > Flashcards

Pectoral Girdle Flashcards

1
Q

What are these two parts

A
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2
Q

How is the shoulder girdle attached to the upper limb?

A
  • at the shoulder joint
  • multi-axial ball and socket joint
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3
Q

What are the 3 joints of the shoulder girdle?

A
  1. sternoclavicular
  2. acromioclavicular
  3. glenohumeral
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4
Q

What are these 3 joints?

A
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5
Q

What 2 muscle groups stabilise and move the shoulder girdle?

locations

A

Back - connects to vertebral column
Pectoral region - attached to ribs

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6
Q

What muscles make up the back muscle group?

That stabilise and move the shoulder girdle

A
  1. Trapezius
  2. Levator Scapulae
  3. Rhomboid major
  4. Rhomboid minor
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7
Q

What muscles make up the pestoral region muscle group?

That stabilise and move the shoulder girdle

A
  1. Pectoralis minor
  2. Serratus Anterior
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8
Q

What muscle is this?

A

Trapezius

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9
Q

What is the origin of the trapezius?

A

Skull and cervical vertebrae

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10
Q

What is the insertion of the trapezius?

A

Scapula and clavicle

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11
Q

What is the role of the trapezius?

A

elevates, rotates, retracts scapula

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12
Q

What is the origin of the levator scapulae?

A

Upper cervical vertebrae

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13
Q

What is the insertion of the levator scapulae?

A

medial scapula above spine

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14
Q

What muscle is this?

A

levator scapulae

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15
Q

What is the role of the levator scapulae?

A

Elevates medial border of scapula

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16
Q

What is the origin of the rhomboid minor?

A

Lower cervical verterbrae

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17
Q

What is the insertion of the rhomboid minor?

A

medial scapula at spine

18
Q

What muscle is this?

A

rhomboid minor

19
Q

What is the role of the rhomboid minor?

A

Retracts and rotates scapula

20
Q

What is the role of the rhomboid major?

A

Retracts and rotates scapula

21
Q

What is the origin of the rhomboid major?

A

Upper thoracic vertebrae

22
Q

What is the insertion of the rhomboid major?

A

Medial scapula, below spine

23
Q

What muscle is this?

A

rhomboid major

24
Q

What is the role of the pectoralis minor?

A
  • draws scapula forwards
  • Depresses and downwardly rotates scapula
  • Stabilises scapula
25
Q

What is the origin of the pectoralis minor?

A

Surface of ribs 3,4,5

26
Q

What is the insertion of the pectoralis minor?

A

Scapula

27
Q

What muscle is this?

A

pectoralis minor

28
Q

What is the role of the Serratus anterior?

A
  • protracts and stabilises scapula against thorasic wall
  • Effectively elongates upper limb
  • Assists in upward rotation of scapulaa
29
Q

What is the origin of the Serratus anterior?

A

lateral surface of ribs 1-8

30
Q

What is the insertion of the Serratus anterior?

A

scapula, medial border

31
Q

What muscle is this?

A

Serratus anterior

32
Q

What role do the pectoralis major and latissimus dorsi play in the pectoral girdle?

A

stabilises shoulder joint and upper arm

33
Q

What is the role of the pectoralis major?

A
  • flexion of arm
  • abduction of humerous
  • medial rotation of humerous
  • accessory for respiration
34
Q

What is the origin of the pectoralis major?

A

Clavicle & sternum

35
Q

What is the insertion of the pectoralis major?

A

humerus

36
Q

What muscle is this?

A

pectoralis major

37
Q

What is the role of the latissimus dorsi?

A
  • extend and adduct humerus
  • medial rotation humerus
  • downward rotation of scapula
38
Q

What is the origin of the latissimus dorsi?

A
  • vertebrae
  • lower ribs
  • hips
39
Q

What is the insertion of the latissimus dorsi?

A

humerus

40
Q

What muscle is this?

A

latissimus dorsi

Anatomy (25 decks)

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