Back and Shoulder Deep Flashcards

1
Q

Superficial Back Muscles

A

Trapezius
Latissismus Dorsi
Levator Scapula
Rhomboid Major and Minor

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2
Q

Intermiadiate Back Muscles

A

Serratus Posterior Superior and Inferior

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3
Q

Deep Back Muscles

A

3 groups:

Erector Spinae
Transversospinal Group
Segmental Group

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4
Q

4224

A

C1-4 Levator Scapula
skip 2 (C5, C6)
C7, T1 Rhomboid Minor
T2-5 Rhomboid Major

  • Deep Posterior Thoracoappendicular muscles
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5
Q

Rotator Cuff Muscles

A

Supraspinatus
Infraspinatus
Teres Minor
Subscapularis

  • Scapulohumeral Muscles
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6
Q

Scapulohumaral Muscles

scapula –> humerus

A
Rotator Cuff:
Supraspinatus
Infraspinatus 
Teres Minor
Subscapularus 

Others:
Teres Major
Deltoid

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7
Q

Trapezius origin

A

Base of skull
Nuchal ligament
C7 - T12

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8
Q

Trapezius insertion

A

Lateral third of the clavicle
Acromion
Spine of the scapula

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9
Q

Trapezius action

A

Retraction, superior rotation, elevation and depression of the scapula

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10
Q

Trapezius innervation

A

Spinal accessory nerve

  • with superior branch of transverse cervical artery
  • deep to latissimus dorsi
  • lateral to levator scapula (landmark)
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11
Q

Trapezius Arterial Supply

A

Superior Branch of Transverse Cervical Artery

  • With spinal accessory nerve
  • Deep to latissimus dorsi
  • Lateral to Levator Scapula (Landmark)
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12
Q

Latissimus Dorsi origin

A

Spinous Processes T7-T12
Thoracoacrolumbar facia
Iliac Crest

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13
Q

Latissimus Dorsi insertion

A

Floor of the intertubercular groove humerus

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14
Q

Latissimus Dorsi action

A

Extension, adduction, and medial rotation of the arm

- aids in resp.

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15
Q

Latissimus Dorsi innervation

A

Thoracodorsal Nerve

  • rises from posterior cord of the BP
  • C5-T1
  • with thoracodorsal artery
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16
Q

Latissimus Dorsi arterial supply

A

Thoracodorsal Artery

  • rises from subscapular artery
  • travels with thoracodorsal nerve
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17
Q

Muscles forming diamond shape

A

Serratus Posterior Superior
Serratus Posterior Inferior

  • Intermediate Back Muscles
18
Q

Serratus Posterior Superior origin

A

Spinous processes C7 - T2

19
Q

Serratus Posterior Superior insertion

A

Upper Ribs

*inserts above its origin

20
Q

Serratus Posterior Superior action

A

Elevation of the ribs

  • respiration?
  • proprioception?
21
Q

Serratus Posterior Superior innervation

A
Anterior rami
(intercostal nerves)
22
Q

Serratus Posterior Superior arterial supply

A

Posterior innercostal arteries

23
Q

Serratus Posterior Inferior origin

A

spinous processes T11 - L3

24
Q

Serratus Posterior Inferior insertion

A

Lower Ribs

*inserts Below its origin

25
Q

Serratus Posterior Inferior action

A

lower the ribs

  • respiration?
  • proprioception?
26
Q

Serratus Posterior Inferior innervation

A

Innercostal Nerves (anterior rami)

27
Q

Serratus Posterior Inferior arterial supply

A

posterior innercostal arteries

28
Q

Erector Spinae Muscles

Common origin?

A

Iliocostalis
Longissimus
Spinalis

Common origin:

  • sacrum
  • iliac crest
  • SPs of T11 - L5
29
Q

Erector Spinae action

A

Extension + lateral flexion of vertebral column

30
Q

Iliocostalis insertion

A

angle of the lower ribs

31
Q

Longissimus insertion

A

ribs between tubercles and angles

transverse processes cervical and thoracic

32
Q

Spinalis insertion

A

Spinous process cervical and thoracic

33
Q

Erector Spinae Innervation

A

posterior rami of spinal nerves

34
Q

Transversospinalis Muscles

A

Semispinalis (4-6)
Multifidus (2-4)
Rotatotes (1-2)

35
Q

Transversospinalis action

A

extension of vertebral column
lateral flexion / rotation of vertebral column
stabilization of vertebral column

Rotatores possible proprioception

36
Q

Transversospinalis innervation

A

posterior rami of spinal nerves

37
Q

Transversospinal origin and insertion

A

all transverse processes –> spinous processes

38
Q

Segmental Muscle Group

A

Interspinales
(between spinous processes - insertion above origin)

Intertransverserii*
(between transverse processes - insertion above origin)

Levator costarum
(TPs of thoracic and inserts on ribs between tubercle and angle)

39
Q

Segemental Muscle Group action

A

extension of vertebral column
lateral flexion of vertebral column

levator costarum:
elevation of ribs in respiration

40
Q

Segemental Muscle Group innervation

A

posterior rami of spinal nerves

except intertransverserii (also anterior rami)**