Structures Flashcards

1
Q

Trapezius

A
  • Attachments: Spinous processes, acromion, scapula.
  • Innervation: Accessory n.
  • Function: Elevation/adduction/depression/rotation of scapula, abducts humerus.
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2
Q

Latissimus Dorsi

A
  • Attachments: Spinous processes,msacrum, illiac crest, ribs.
  • Innervation: Thoracodorsal n.
  • Function: Extends, adducts, medially rotates the humerus.
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3
Q

Levator Scapulae

A
  • Attachments: Transverse processes, medial border of scapula.
  • Innervation: Anterior Rami.
  • Function: Elevates the scapula.
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4
Q

Rhomboid Major

A
  • Attachments: Spinous processes, medial bôrder of scapula.
  • Innervation: Dorsal scapular n.
  • Function: Retracts and elevates the scapula.
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5
Q

Rhomboid Minor

A
  • Attachments: Spinous processes, medial bôrder of scapula.
  • Innervation: Dorsal scapular n.
  • Function: Retracts and elevates the scapula.
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6
Q

Serratus Posterior Superior

A
  • Attachments: Spinous processes, ribs.
  • Innervation: Anterior Rami.
  • Function: Elevates the ribs.
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7
Q

Serratus Posterior Inferior

A
  • Attachments: Spinous processes, ribs.
  • Innervation: Anterior Rami.
  • Function: Depresses the ribs.
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8
Q

Serratus Anterior

A
  • Attachments: Ribs, medial border of scapula.
  • Innervation: Long thoracic n.
  • Function: Rotation of the scapula.
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9
Q

Splenius Capitus

A
  • Attachments: Spinous processes, mastoid process, skull.
  • Innervation: Posterior Rami.
  • Function: Draws and rotates the head to one side, extends the neck.
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10
Q

Splenius Cervicus

A
  • Attachments: Spinous processes, transverse processes.
  • Innervation: Posterior Rami.
  • Function: Draws and rotates the head to one side, extends the neck.
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11
Q

Iliocostalis

A
  • Attachments: Sacrum, illiac crest, sponous processes, ribs.
  • Function: Extends the spine.
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12
Q

Longissimus

A
  • Attachments: Iliocostalis, transverse processes.

* Function: Extends the spine.

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13
Q

Spinalis

A
  • Attachments: Spinous processes, ligamentum nuchae.

* Function: Extends the spine.

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14
Q

Rectus Capitis Posterior Major

A
  • Attachments: Axis, occipital bone.
  • Innervation: C1..
  • Function: Extension of the head, rotation of the face.
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15
Q

Rectus Capitis Posterior Minor

A
  • Attachments: Atlas, occipital bone.
  • Innervation: C1.
  • Function: Extension of the head.
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16
Q

Obliquus Capitis Superior

A
  • Attachments: Atlas, occipital bone.
  • Innervation: C1
  • Function: Extension of the head.
17
Q

Obliquus Capitis Inferior

A
  • Attachments: Axis and Atlas.
  • Innervation: C1.
  • Function: Rotation of the face.
18
Q

Supraspinatus

A
  • Attachments: Supraspinous fossa, greater tubercle of humerus.
  • Innervation: Suprascapular n.
  • Function: Initial abduction of the arm.
19
Q

Infraspinatus

A
  • Attachments: Infraspinous fossa, greater tubercle of humerus.
  • Innervation: Suprascapular n.
  • Function: Lateral rotation of the arm.
20
Q

Teres Minor

A
  • Attachments: Posterior surface of scapula, greater tubercle of humerus.
  • Innervation: Axillary n.
  • Function: Lateral rotation of the arm.
21
Q

Teres Major

A
  • Attachments: Inferior angle of scapula, anterior surface of humerus.
  • Innervation: Subscapular n.
  • Function: Medial rotation and extension of the arm.
22
Q

Subscapularis

A
  • Attachments: Subscapular fossa, lesser tubercle of humerus.
  • Innervation: Subscapular n.
  • Function: Medial rotation of the arm.
23
Q

Triceps Brachii, Long Arm

A
  • Attachments: Scapula, olecranon process of ulna.
  • Innervation: Radial n.
  • Function: Adducts and extends the arm.
24
Q

Pectoralis Major

A
  • Attachments: Clavicular head, sternum, costal cartilage, humerus.
  • Innervation: Medial/lateral pectoral nn.
  • Function: Flexion, adduction, medal rotation of the arm.
25
Q

Pectoralis Minor

A
  • Attachments: Ribs, coracoid process.
  • Innervation: Medial pectoral n.
  • Function: Pulls tip of shoulder down.
26
Q

Subclavius

A
  • Attachments: First rib, clavicle.
  • Innervation: Nerve to subclavius.
  • Function: Pulls tip of shoulder down.
27
Q

Biceps Brachii

A
  • Attachments: Long head attaches to the scapula; short head attaches to the coracoid process.
  • Innervation: Musculocutaneous n.
  • Function: Flexion of the forearm.
28
Q

Coracobrachialis

A
  • Attachments: Coracoid process, medial side of humerus.
  • Innervation: musculocutaneous n.
  • Function: Flexion and adduction of the arm.