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35 Cards in this Set
- Front
- Back
- 3rd side (hint)
Trapezius - 1st Layer
Attachment? Innervation? Action? |
Attachment: occipital bone, nuchal ligament, spinous processes C7-T12, lateral 1/3 of clavicle, spine of scapula and acromion
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Innervation: Accessory Cranial Nerve XI
Action: Elevation (upper fibers) and Depression (lower) of scapula, superior rotation of scapula, assists in retraction (middle fibers), assists in abduction |
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Latissimus Dorsi - 1st Layer
Attachment? Innervation? Action? |
Attachment: sacral and lumbar spines via thoracolumbar fascia, iliac crest via thoracolumbar fascia, lower 4 ribs, spinous processes T6-T12, inferior angle of scapula, intertubercular groove of humerus
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Innervation: Thoracodorsal Nerve - comes from brachial plexus C6*, C7*, C8
Action: Extension, adduction, medial rotation of humerus |
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Deltoid - 1st Layer
Attachment? Innervation? Action? |
Attachment: (4 points - 3 superior, 1 inferior)
Anterior: Lateral 1/3 of clavicle Lateral: Acromion Posterior: Spine of scapula Inferior: Deltoid tuberocity of humerus |
Innervation: Axillary nerve (from brachial plexus C5*, C6)
Action: humeral flexion, extension, abduction |
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Rhomboid Major - 2nd Layer
Attachment? Innervation? Action? |
Attachment: Spinous processes of T2-T5, Medial scapula border
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Innervation: Dorsal Scapular nerve from brachial plexus C5
Action: Retraction (adduction) of scapula, elevation of scapula |
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Rhomboid Minor - 2nd Layer
Attachment? Innervation? Action? |
Attachment: Spinous processes C7 & T1, scapula medial border
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Innervation: Dorsal Scapular nerve from brachial plexus C5
Action: Retraction (adduction) of scapula, elevation of scapula |
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Levator Scapulae - 2nd Layer
Attachment? Innervation? Action? |
Attachment: Transverse processes of C1-C4, superior angle and top of medial border of scapula
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Innervation: Dorsal scapular nerve of brachial plexus C5
Action: Elevation of scapula (shrugging), inferior rotation of glenoid, lateral flexion of neck |
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Serratus Posterior Inferior - 3rd Layer
Attachment? Innervation? Action? |
Attachment: Spinous processes T11-L2, ribs 9-12 (inferior border)
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Innervation: Ventral fami T10 & T11 spinal nerves (intercostal nerves), ventral ramus T12 spinal nerve (subcostal nerve)
Action: Depression of ribs 9-12 |
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Serratus Posterior Superior - 3rd Layer
Attachment? Innervation? Action? |
Attachment: spinous processes C7-T3, ribs 2-5 (superior border)
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Innervation: Ventral rami T1-T3, spinal nerves (intercostal)
Action: Elevation of ribs 2-5 |
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Serratus Anterior - 3rd Layer
Attachment? Innervation? Action? |
Attachment: Ribs 1-8, scapula medial border
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Innervation: Long thoracic nerve from brachial plexus C5-C7
Action: Protraction (abduction) of scapula, medial rotation of scapula, stabilizes scapula (holds against thoracic wall) |
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Teres Major - 2nd Layer
Attachment? Innervation? Action? |
Attachment: Inferior angle & lateral border of scapula, humerus (medial lip of intertubercular sulcus)
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Innervation: Lower subscapular nerve from brachial plexus C6
Action: Medial rotation of arm, adduction of arm, extension of arm |
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Erector Spinae (Sacrospinalis) - 4th Layer (deepest)
Innervation? Action? |
Innervation: Dorsal Rami of Spinal Nerve
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Action: Spinal extension, lateral bending
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Supraspinatus (Rotator Cuff muscle) - 3rd Layer
Attachment? Innervation? Action? |
Attachment: Supraspinous process of scapula, greater tubercle of humerus, sits in supraspinatus fossa
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Innervation: Suprascapular nerve of brachial plexus C5
Action: Abduction of arm, holds head of humerus in glenoid fossa |
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Infraspinatus (Rotator Cuff muscle) - 2nd Layer
Attachment? Innervation? Action? |
Attachment: Infraspinous fossa of scapula, greater tubercle of humerus, sits in infraspinus fossa
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Innervation: Suprascapular nerve of brachial plexus C5
Action: Lateral rotation of arm, holds head of humerus in glenoid fossa |
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Teres Minor (Rotator Cuff muscle) - 1st Layer
Attachment? Innervation? Action |
Attachment: Scapula lateral border, greater tubercle of humerus
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Innervation: Axillary of brachial plexus C5
Action: Lateral rotation of arm, holds head of humerus in glenoid fossa, adduction of arm (weak) |
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Supscapularis (Rotator Cuff muscle) - 2nd Layer
Attachment? Innervation? Action? |
Attachment: Scapula, subscapular fossa, humerus, lesser tubercle
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Innervation: Upper and lower subscapular nerves
Action: Medial rotation of arm, holds head of humerus in glenoid |
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Gluteus Maximus - 1st Layer
Innervation? Action? |
Innervation: Inferior gluteal nerve from ventral rami of L5-S2 spinal nerves
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Action: Extension of thigh, lateral rotation of thigh
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Gluteus Medius - 2nd Layer
Innervation? Action? |
Innervation: Superior gluteal nerve from ventral rami of L4-S1 spinal nerves
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Action: Abduction, medial rotation of thigh, squares pelvis during ambulation
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Gluteus Minimus - 3rd Layer
Innervation? Action? |
Innervation: Superior gluteal nerve from ventral rami of L4-S1 spinal nerves
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Action: Abduction, medial rotation of thigh, squares pelvis
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Piriformis - 2nd Layer
Innervation? Action? |
Innervation: S1
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Action: Lateral rotation while in extension, abduction in flexion
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Obturator Internus - 3rd Layer
Innervation? Action? |
Innervation: Nerve to obturator internus - comes from sacral plexus ventral of L5, S1 & S2 nerves
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Action: Lateral rotation while in extension, abduction in flexion
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Quadratus Femoris - 3rd Layer
Innervation? Action? |
Innervation: nerve to quadratus femoris - from sacral plexus from L4, L5 & first sacral nerves
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Action: Lateral rotation of thigh
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Gemelli (Superior and Inferior) - 3rd Layer
Innervation of each? Action of both? |
Innervation
Gemellus Superior: nerve to obturator internus Gemellus Inferior: nerve to quadratus femorus |
Action: Lateral rotation of hip
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In a driving accident, disruption of the ____ allows for dens to herniate toward the spinal cord
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Transverse ligament
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Clinical correlation of thoracic spinal levels:
T3 |
Level of spine of scapula
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Clinical correlation of thoracic spinal levels:
T7 |
Inferior angle of scapula
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Clinical correlation of thoracic spinal levels:
T12 |
Most commonly fractured vertebrae
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Landmark: C7
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Vertebrae prominens
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Landmark: L1-L3
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Level of end of spinal cord
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Landmark L4
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Iliac crest
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Outer fibrocartilage ring of disc of intervertebral discs
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Annulus fibrosis
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Central gelatinous portion of intervertebral discs
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Nucleus pulposus
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Narrowing of the spinal canal, puts pressure on the cauda equina; patient may experience bowl and bladder incontinence and "saddle" anesthesia
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Cauda equina syndrome
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Tearing of this is a common cause of low back pain
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Thoracolumbar fascia strain
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This can become damaged by an intramuscular injection
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Superior gluteal nerve
Also, sciatic nerve |
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Pressure can be put on the sciatic nerve by this muscle, causing sciatica
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Piriformis
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