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Pectoral Girdle > Anterior Back Muscles > Flashcards

Anterior Back Muscles Flashcards

1
Q

Deltoid Action

A

Flex arm at shoulder- Anterior Fibres
Posterior fibres “
Middle fibres-abductor arm

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2
Q

Deltoid Innervation

A

Axillary nerve

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3
Q

Deltoid Blood Supply

A

Deltoid- branch of thoracoacromial artery

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4
Q

Teres Major Action

A

Adducts shoulder

medially rotates arm

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5
Q

Teres Major Innervation

A

Inferior subscapular nerve

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6
Q

Teres Major Blood Supply

A

Sub-scapular artery

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7
Q

Supraspinatus (RC) Action

A

Abducts arm 0-15 deg

Assists deltoid 15-90 deg

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8
Q

Supraspinatus (RC) Innervation

A

Suprascapular nerve

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9
Q

Supraspinatus (RC) Blood Supply

A

Suprascpaular artery

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10
Q

Infraspinatus (RC) Action

A

Laterally rotates arm

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11
Q

Infraspinatus (RC) Innervation

A

Suprascapular nerve

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12
Q

Infraspinatus (RC) Blood Supply

A

Suprascapular artery

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13
Q

Subscapularis (RC) Action

A

Medially rotates arm

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14
Q

Subscapularis (RC) Innervation

A

Upper/Lower subscapular nerves

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15
Q

Subscapularis (RC) Blood Supply

A

Sub-scapular branch of axillary artery

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16
Q

What muscles in the back are EXTRINSIC

A

1) Trapezius
2) Lattisimus Dorsi
3) Levatator Scapulae
4) Rhomboid Major
5) Rhomboid minor

17
Q

Trapezius Action

A

FIBRES
Upper- Elevate scapula+ rotate during adbuction of arm
Middle- Retract scapula
Lower-Pull scapula inferiorly

18
Q

Trapezius Innervation

A

Accessory nerve

19
Q

Trapezius Blood Supply

A

Transverse cervical artery

20
Q

Lattisimus Dorsi Action

A

Extends
Adducts
Medially rotates upper limb

21
Q

Lattisimus Dorsi Innervation

A

Thoracodorsal nerve

22
Q

Lattisimus Dorsi Blood Supply

A

Thoracordorsal artery

23
Q

Levatator Scapulae Action (Deep)

A

Elevates Scapula

24
Q

Levatator Scapulae Innervation (Deep)

A

Dorsal Scapular nerve

25
Q

Levatator Scapulae Blood Supply (Deep)

A

Transverse cervical artery

26
Q

Rhomboid Major Action (Deep)

A

Retracts
Rotates
Scapula

27
Q

Rhomboid Major Innervation ( Deep)

A

Dorsal Scapular nerve

28
Q

Rhomboid Major Blood Supply (Deep)

A

Transverse Cervical artery

29
Q

Rhomboid Minor Action (Deep)

A

Retracts
Rotates
Scapula

30
Q

Rhomboid Minor Innervation (Deep)

A

Dorsal Scapular nerve

31
Q

Rhomboid Minor Blood Supply (Deep)

A

Transverse Cervical artery

Pectoral Girdle (12 decks)

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