Term
| What are the three types of back muscles? |
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Definition
| Superficial, intermediate, deep |
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Term
| What does superficial back muscle mean? |
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Definition
| Attached to the bones of the upper extremety and are extrensic muscles |
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Term
| What does extrensic muscle mean? |
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Definition
|
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Term
| What does intermediate back muscle mean |
|
Definition
| attached to teh ribs and are involved in respiration, also referred to as extrensic back muscles |
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Term
| What does deep back muscle mean? |
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Definition
| attached to the spine and are intrinsic |
|
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Term
| what does an intrinsic back muscle do? |
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Definition
|
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Term
| What are the superficial and intermediate back muscles enervated by? |
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Definition
| the ventral ramii of the intercostal nerves |
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Term
| What are the deep back muscles enervated by |
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Definition
| the dorsal ramii of the intercostal nerves |
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Term
| What are the characteristics of the thorocolumbar fascia? |
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Definition
| superficial of the posterior layer is thicker, erector spinae is between superficial and deep |
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Term
| What are the muscles of the back? |
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Definition
| Trapezius, latissmus dorsi, levator scapulae, rhomboid major, rhomboid minor, serratus posterior superior, serratus posterior inferior, splenius capitis, splenius cervices, erector spinae |
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Term
| What are the three parts of the trapezius |
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Definition
| superior, medial, inferior |
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Term
| What are the origins of the trapezius |
|
Definition
| superior nuchal line, external occipital protuberance, spinous processes of C7-C12 |
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Term
| what are the insertions of the trapezius |
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Definition
| acromion and spine of scapula |
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Term
| what enervates the trapezius |
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Definition
| ventral ramii of C3 and C4, but mostly by spinal accessory nerve |
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Term
| What is the function of the trapezius |
|
Definition
| bends the head right or left and extends the head backward. also involved in the adduction and abduction of scapula |
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Term
| T/F: the latissmus dorsi is an extrinsic and superficial back muscle |
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Definition
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Term
| What are the origins of the latissmus dorsi |
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Definition
| iliac crest, thoracolumbar fascia, lower four ribs, and the spinous processes of T7-T12 |
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Term
| what is the insertion of the latissmus dorsi |
|
Definition
| intertuburcular groove of the humerous |
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Term
| What enervates the latissmus dorsi |
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Definition
|
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Term
| What is the latissmus dorsi responsible for |
|
Definition
| extension, adduction, and rotation of the humerus |
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Term
| T/F the levator scapulae muscle is extrinsic and superficial |
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Definition
|
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Term
| What enervates the levator scapulae muscle |
|
Definition
|
|
Term
| what is the function of the levator scapulae muscle |
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Definition
|
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Term
| What are the rhomboid major and minor muscles considered to be? (extrinsic or intrinsic) |
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Definition
|
|
Term
| Are the rhomboid major/minor muscles superficial? |
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Definition
|
|
Term
| What enervates the rhomboid major/minor muscles |
|
Definition
|
|
Term
| What is the function of the rhomboid major/minor |
|
Definition
| adducts and rotates the scapula |
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Term
| What is the physical description of the serratus posterior superior |
|
Definition
| extrinsic, intermediate muscle |
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|
Term
| what enervates the serratus posterior superior |
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Definition
|
|
Term
| What does the serratus posterior superior do? |
|
Definition
| involved with respiratory activity |
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Term
| What is the physical description fo the serratus posterior inferior |
|
Definition
| extrensic and intermediate |
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Term
| What enervates the serratus posterior inferior |
|
Definition
| T10-T12 intercostal nerves |
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|
Term
| What is the function of the serratus posterior inferior? |
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Definition
|
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Term
| What is the physical description of the splenius capitis and slplenius cervices |
|
Definition
| intrinsic and deep back muscles |
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Term
| what enervates the splenius capitis/cervices |
|
Definition
| the dorsal ramii fo the cervical spinal C1-C7 intercostal nerves |
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Term
| What is the function of the splenius capitis/cervices |
|
Definition
| laterally bends the head, also extends the head |
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Term
| What are the Erector Spinae Muscles |
|
Definition
| spinalis, longissimus, iliocostalis |
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|
Term
| What is the classification of the erector spinae muscles |
|
Definition
|
|
Term
| What enervates the erector spinae muscles |
|
Definition
| dorsal ramii of intercostal nerves |
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|
Term
| What is the function of the erector spinae muscle |
|
Definition
| extends the spine when working bilaterally |
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