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PT 504 Anatomy Lab > Back Inferior to C7 > Flashcards

Back Inferior to C7 Flashcards

1
Q

Trapezius Origin

A

Medial Third of superior nuchal line; external occipital protuberance; nuchal ligament; spinous processes of C7-T12 vertebrae

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2
Q

Trapezius Insertion

A

Lateral third of clavicle; acromion; spine of scapula

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3
Q

Trapezius Innervation

A

Spinal Accessory Nerve (XI: motor fibers); C3,C4 spinal nerves (pain and proprioceptive fibers)

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4
Q

Trapezius Action

A

Descending fibers elevate scapula; ascending fibers depress scapula; Middle or all parts retract scapula; descending and ascending fibers rotate glenoid cavity superiorly

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5
Q

Trapezius Roots

A

C3;C4

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6
Q

Latissimus Dorsi Origin

A

Spinous Processes of inferior 6 thoracic vertebrae; thoracolumbar fascia; iliac crest; inferior 3 or 4 ribs

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7
Q

Latissimus Dorsi Insertion

A

Floor of intertubercular sulcus of humerus

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8
Q

Latissimus Dorsi Innervation

A

Thoracodorsal Nerve (C6;C7:C8)

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9
Q

Latissimus Dorsi Action

A

Extends, Adducts, and medially rotates humerus; raises body towards arms during climbing

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10
Q

Latissimus Dorsi Roots

A

C6;C7:C8

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11
Q

Rhomboid Minor Origin

A

Nuchal Ligament; Spinous processes of C7 and T1 vertebrae

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12
Q

Rhomboid Minor Insertion

A

Smooth triangular area at medial end of scapular spine

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13
Q

Rhomboid Major Origin

A

Spinous processes of T2-T5 vertebrae

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14
Q

Rhomboid Major Insertion

A

Medial border of scapula from level of spine to inferior angle

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15
Q

Rhomboid Minor and Major Innervation

A

Dorsal Scapular nerve (C4,C5)

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16
Q

Rhomboid Minor and Major Roots

A

C4,C5

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17
Q

Levator Scapulae Origin

A

Posterior tubercles of transverse processes of C1-C4 vertebrae

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18
Q

Levator Scapulae Insertion

A

Medial border of scapula superior to root of scapular spine

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19
Q

Levator Scapulae Innervation

A

Dorsal Scapular nerve (C5); Cervical nerves C4 and C5

20
Q

Levator Scapulae Roots

A

C3;C4

21
Q

Levator Scapulae Action

A

Elevates scapula and tilts its glenoid cavity inferiorly by rotating scapula

22
Q

Serratus Posterior Superior Origin

A

Nuchal Ligament; Spinous processes of C7-T3

23
Q

Serratus Posterior Superior Insertion

A

Superior borders of ribs 2-4

24
Q

Serratus Posterior Superior Innervation

A

2nd to 5th intercostal nerves

25
Q

Serratus Posterior Superior Action

A

Proprioception (elevate ribs)

26
Q

Serratus Posterior Inferior Origin

A

Spinous processes of T11-L2

27
Q

Serratus Posterior Inferior Insertion

A

Inferior borders of ribs 8-12 near the angle

28
Q

Serratus Posterior Inferior Action

A

Proprioception (depress ribs)

29
Q

Serratus Posterior Inferior Innervation

A

Anterior rami to T9-T12 thoracic spinal nerves

30
Q

Serratus Posterior Inferior Roots

A

T9-T12

31
Q

Erector Spinae (Iliocostalis, Longissimus, Spinalis) Origin

A

Broad tendon from posterior part of iliac crest; posterior surface of sacrum; sacroiliac ligaments; sacral and inferior lumbar spinous processes; supraspinous ligament

32
Q

Iliocostalis Insertion

A

Lumborum, thoracis, cervicis; fibers run superiorly to angles of lower ribs and cervical transverse processes

33
Q

Longissimus Insertion

A

Thoracis, Cervicis, Capitis; fibers run superiorly to ribs between tubercles and angles to transvers processes in thoracic and cervical regions; mastoid process of temporal bone

34
Q

Spinalis Insertion

A

Thoracis, Cervicis, Capitis; fibers run superiorly to spinous processes in the upper thoracic region and to cranium

35
Q

Erector Spinae Action

A

Acting Bilaterally: Extend vertebral column and head

Acting Unilaterally: Laterally Flex vertebral column

36
Q

Semispinalis (of the transversospinalis) Origin

A

Arises from transverse processes of C4-T12

37
Q

Semispinalis (of the transversospinalis) Insertion

A

Thoracis, Cervicis, Capitis; fibers run superomedially to occipital bone and spinous processes in thoracic and cervical regins, 4-6 segments

38
Q

Multifidus (of the transversospinalis) Origin

A

Posterior Sacrum; posterior superior iliac spine; aponeurosis of erector spinae; sacroilliac ligaments; mammilary processes of lumbar vertebrae; transverse processes of T1-T3; articular processes of C4-C7

39
Q

Multifidus (of the transversospinalis) Insertion

A

Lumbar region; fibers pass obliquely superomedially to entire length of spinous processes; 2-4 segments superior to proximal attachement

40
Q

Rotatores (of the transversospinalis) Origin

A

Arise from transverse processes of vertebrae; best developed in thoracic region

41
Q

Rotatores (of the transversospinalis) Insertion

A

Superomedially to attach to junction of lamina and transverse process of vertebra 1-2 segments superior to proximal attachment

42
Q

Transversospinalis (Semispinalis, Multifidus, Rotatores) Innervation

A

Posterior rami of spinal nerves

43
Q

Semispinalis Action

A

Unilaterally: rotates head and neck contralaterally, laterally flexes head and neck ipsilaterally
Bilaterally: extends head, cervical, and thoracic regions of the vertebral column

44
Q

Multifidus Action

A

Stabilizes vertebrae during local movements of vertebral column

45
Q

Rotatores Action

A

Stabilizes vertebrae and assist with local extension and rotation; proprioception

PT 504 Anatomy Lab (15 decks)

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