trapezius u pper middle and lower fibers n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Trapezius: U pper, Middle, and Lower fibers PowerPoint Presentation
Download Presentation
Trapezius: U pper, Middle, and Lower fibers

Loading in 2 Seconds...

play fullscreen
1 / 40

Trapezius: U pper, Middle, and Lower fibers - PowerPoint PPT Presentation


  • 109 Views
  • Uploaded on

Trapezius: U pper, Middle, and Lower fibers. Axio-Scapular/ Axio-Clavicular group. Attachments: Proximal: Superior nuchal line on occipital bone (posterior skull) + C1-T12 vertebrae ( spinous process ) Distal: Upper: lateral clavicle Middle: acromion + spine of scapula

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Trapezius: U pper, Middle, and Lower fibers' - felice


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
axio scapular axio clavicular group
Axio-Scapular/ Axio-Clavicular group

Attachments:

Proximal: Superior nuchal line on occipital bone (posterior skull) + C1-T12 vertebrae (spinous process)

Distal:

Upper: lateral clavicle

Middle: acromion + spine of scapula

Lower: base (medial end) of spine of scapula

Action: (scapular motion)

U: UPWARD rotate, ADduct (retract), elevate

M: ADduct (retract)

L: UPWARD rotate, ADduct (retract), depress

PERIPHERAL NERVE + spinal cord level of origin:

Cervical nerves + cranial nerve XI (spinal accessory nerve)

Spinal segments:

C1,2,3,4,5

axio scapular axio clavicular group1
Axio-Scapular/ Axio-Clavicular group

Attachments:

Proximal: upper cervical vertebrae (transverse process of C1-C4)

Distal: medial boarder of scapula, superior to spine

Action: (scapular motion)

Elevate, downward rotate

PERIPHERAL NERVE + spinal cord level of origin:

Cervical nerves: 3,4 + dorsal scapular nerve: C5

Spinal segments:

C3,4,5

axio scapular axio clavicular group2
Axio-Scapular/ Axio-Clavicular group

Attachments:

Proximal: lower cervical vertebrae (spinous process of C7-T1)

Distal: medial border of scapula, at base of spine

Action: (scapular motion)

Elevate, ADduct(retract), downward rotate

PERIPHERAL NERVE + spinal cord level of origin:

Dorsal scapular nerve: C5

Spinal segment:

C5

axio scapular axio clavicular
Axio-Scapular/ Axio-Clavicular

Attachments:

Proximal: upper thoracic vertebrae (spinous process of T2-T5)

Distal: medial border of scapula, inferior to spine

Action: (scapular motion)

Elevate, ADduct(retract), downward rotate

PERIPHERAL NERVE + spinal cord level of origin

Dorsal scapular nerve: C5

Spinal segment:

C5

axio scapular axio clavicular group3
Axio-Scapular/ Axio-Clavicular group

Attachments:

Proximal: lateral surface of ribs 1-8

Distal: medial border of scapula, entire length, on COASTAL surface

Actions: (scapular motion)

UPWARD rotate, ABduct(protract) – prevents winging

PERIPHERAL NERVE + spinal cord level of origin:

Long thoracic nerve: C5,6,7

Spinal segments:

C5,6,7

axio scapular axio clavicular group4
Axio-Scapular/ Axio-Clavicular group

Attachments:

Proximal: anterior surface of ribs 3-5

Distal: coracoid process of scapula

Actions: (scapular motion)

ABduct(protract), downward rotate, depress

PERIPHERAL NERVE + spinal cord level of origin:

Lateral + medial pectoral nerves: C5,6,7 + C8, T1

Spinal segments:

C7,C8

axio humeral group
Axio- Humeral group

Attachments:

Proximal: Clavicular head (CL) – medial clavicle

sternal head (ST) – sternum (manubrium and body of sternum, plus the adjacent costal cartilages of ribs 2-6)

Distal: All fibers to LATERAL lip of the intertubercular groove of the humerus (crest of the greater tubercle)

Actions:

CL head: flex, ADduct, IR, H. AD the gleno-humeral joint

ST head: extend (from 180), ADduct, IR, H. AD the gleno-humeral joint

ELEVATE TRUNK in closed kinematic chain with humerus stabilized (weight bearing on hands)

(ALSO: protract + depress shoulder girdle)

PERIPHERAL NERVE + spinal cord level of origin:

CL head = LATERAL pectoral nerve: C5,6,7

ST head = Lateral + Medial pectoral nerves: C5,6,7 + C8, T1

Spinal segments:

CL head: C5,6,7

ST head: C6,7,8, T1

axio humeral group1
Axio-Humeral group

Attachments:

Proximal:Vertebral column from T7 to sacrum + iliac crest(T7-T12 is directly from spinous process of vert., while L+S levels and iliac crest are via thoraco-lumbar fascia)Also, (small attachment to inferior tip of scapula)

Distal:FLOOR of intertubercular groove of humerus

Actions:

Extend, ADduct, IR, H. AB at gleno-humeral joint

ELEVATE TRUNK in closed kinematic chain with humerus stabilized (weight bearing on hands)

(ALSO: retract + depress shoulder girdle, and downward rotate scapula via small attachment to inferior tip of scapula)

PERIPHERAL NERVE + spinal cord level of origin:

Thoracodorsal nerve: C6,7,8

Spinal segments:

C6,7,8

supraspinatus

Supraspinatus

Muscle of the ROTATOR CUFF

“S---” of “SITS”

scapulo h umeral group
Scapulo-Humeral group

Attachments:

Proximal:supraspinous fossa of scapula

Distal:greater tubercle of humerus, UPPER facet

Actions:

ABduct at gleno-humeral joint (does NOT rotate) Also; supports head of humerus in glenoid fossa

PERIPHERAL NERVE+ spinal cord level of origin:

Suprascapular nerve: C5,6

Spinal segment:

C5

infraspinatus

Infraspinatus

Muscle of the ROTATOR CUFF

“-I--” of “SITS”

scapulo humeral group
Scapulo-Humeral group

Attachments:

Proximal:infraspinous fossa of scapula

Distal:greater tubercle of humerus, MIDDLE facet

Actions:

External rotation of gleno-humeral joint. Also; depress head of humerus (compress + stabilize the GH jt)

PERIPHERAL NERVE + spinal cord level of origin:

Suprascapular nerve: C5,6

Spinal segments:

C5,6

teres minor

Teres minor

Muscle of the ROTATOR CUFF

“- -T-” of “SITS”

scapulo humeral group1
Scapulo-Humeral group

Attachments:

Proximal:lateral boarder of scapula at mid-length

Distal:greater tubercle of humerus, LOWER facet

Actions:

External rotation of gleno-humeral joint. Also; depress head of humerus(Compress + stabilize the GH jt).

PERIPHERAL NERVE+ spinal cord level of origin:

Axillary nerve: C5,6

Spinal segments:

C5,6

subscapularis

Subscapularis

Muscle of the ROTATOR CUFF

“- - - S” of “SITS”

scapulo humeral group2
Scapulo-Humeral group

Attachments:

Proximal:subscapular fossa of scapula

Distal:lesser tubercle of humerus

Actions:

Internal rotation of gleno-humeral joint. Also, depress head of humerus

PERIPHERAL NERVE + spinal cord level of origin:

Upper + lower subscapular nerves: C5,6

Spinal segments:

C5,6

scapulo humeral group3
Scapulo-Humeral group

Attachments:

Proximal:

Anterior: lateral clavicle

Middle: acromion process of scapula

Posterior: spine of scapula

Distal:ALL to deltoid tuberosity of humerus

(Compare this to gluteus medius arrangement, especially the actions)

Actions:

A: ABduct, flex, IR and H. AD at GH jt

M: ABduct GH jt

P: ABduct, extend, ER, and H. AB at GH jt

PERIPHERAL NERVE+ spinal cord level of origin:

Axillary nerve: C5,6

Spinal segments:

C5,6

scapulo humeral group4
Scapulo-Humeral group

Attachments:

Proximal: lateral boarder of scapula at inferior angle

Distal:MEDIAL lip of intertubercular groove of humerus (crest of lesser tubercle)

Actions:

Extend, ADduct, IR at GH jt

PERIPHERAL NERVE+ spinal cord level of origin:

Lower subscapular nerve: C5,6

Spinal segment:

C6

scapulo humeral group5
Scapulo-Humeral group

Attachments:

Proximal:coracoid process of scapula

Distal:mid-humerus, medial side

Actions:

Flex, ADduct at GH jt

PERIPHERAL NERVE + spinal cord level of origin:

Musculocutaneous nerve: C5,6,7

Spinal segments:

C6,7

scapulo forearm group
Scapulo-Forearm group

Attachments:

Proximal:

Long head: supraglenoid tubercle of scapula

Short head: coracoid process of scapula

Distal:BOTH heads; radial tuberosity + bicipital aponeurosis

Actions:

Both heads: flex GH jt + flex elbow, supinate forearm

PERIPHERAL NERVE + spinal cord level of origin:

Musculocutaneous nerve: C5,6,7

Spinal segments:

C5,6

scapulo forearm group1
Scapulo-Forearm group

Attachments:

Proximal:

Long head: infraglenoid tubercle of scapula

Lateral head: posterior humerus, superior to radial groove

Medial head (deep): posterior humerus, inferior to radial groove

Distal:ALL 3 heads; olecranon process of ulna

Actions:

Long head: extend GH joint

ALL 3 HEADS: extend elbow joint

PERIPHERAL NERVE+ spinal cord level of origin:

Radial nerve: C5-T1

Spinal segments:

C7,C8

scapulo forearm group2
Scapulo-Forearm group

Attachments:

Proximal:lateral epicondyle of humerus

Distal:olecranon process of ulna

Actions:

Extend elbow joint

PERIPHERAL NERVE + spinal cord level of origin:

Radial nerve: C5-T1

Spinal segments:

C7,C8

elbow muscles of the brachium acting at the elbow
Elbow: muscles of the brachium acting at the elbow

Attachments:

Proximal:anterior distal shaft of humerus

Distal:anterior proximal shaft of ulna (ulnar tuberosity)

Actions:

Flex elbow

PERIPHERAL NERVE + spinal cord level of origin:

Musculocutaneous nerve: C5,6,7

Spinal segments:

C5,6

elbow muscles of the brachium acting at the elbow1
Elbow: muscles of the brachium acting at the elbow

Attachments:

Proximal:lateral supracondylar ridge of humerus

Distal:styloid process of distal radius

Actions:

Flex elbow

PERIPHERAL NERVE + spinal cord level of origin:

Radial nerve: C5-T1

Spinal segments:

C5,6