Term
|
Definition
| are the superficial muscles of the back intrinsic or extrinsic? |
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Term
|
Definition
| which one is considered the true back muscles- superficial or deep back muscles? |
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|
Term
|
Definition
| are the deep back muscles extrinsic or intrinsic? |
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Term
|
Definition
| primarily extensors and rotators of vertebral column and head |
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Term
|
Definition
| these muscles help resists gravity and helps maintain posture |
|
|
Term
1) iliocostalis
2) longissimus
3) spinalis |
|
Definition
| what 3 muscles make up the erector spinae muscles (complex) from lateral to medial? |
|
|
Term
sacrum
spinous processes of lumbar vertebrae |
|
Definition
| what are the 2 origins of the erector spinae muscles? |
|
|
Term
thoracic and cerivical vertebrae
ribs
skull |
|
Definition
| what are the 3 insertion points for the erector spinae muscles? |
|
|
Term
1: acting bilaterally: extend head and vertebral column
2. Acting unilaterally: lateral flexion of head and vertebral column |
|
Definition
| what is the 2 actions of the erector spinae muscles? |
|
|
Term
| dorsal rami of spinal nerves |
|
Definition
| what is the innervation of the erector spinae muscles? |
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