Transcript NamethatMuscle1

Name that Muscle!
Muscle #1 & 2
#1
#2
Muscle #3
Muscle #4
#4
Muscle #5
Muscle #6
#6
Muscle #7
#7
Muscle #8
Muscle #9
Muscle #10
#10
Muscle #11
Muscle #12
#12
Muscles #13 & 14
#13
#14
Muscle #15
Muscle #16
Muscle #17
The End
Answers
1.
2.
3.
4.
5.
6.
7.
8.
Trapezius
Latissimus dorsi
Deltoid
Serratus anterior
Coracobrachialis
External intercostals
Teres major
Pectoralis minor
9.
10.
11.
12.
13.
14.
15.
16.
17.
Levator scapulae
Internal intercostals
Supraspinatus
Subscapularis
Rhomboid minor
Rhomboid major
Teres minor
Pectoralis major
Infraspinatus
Trapezius



Action:
 Upper fibers: they extend the
head and neck (both); laterally
flex the head and neck to the
same side, rotate the head and
neck to the opposite side
(singly), elevate the scapula,
and upwardly rotate the
scapula.
 Middle fibers: adduct the
scapula, stabilize the scapula.
 Lower fibers: depress the
scapula, upwardly rotate the
scapula.
Origin: External occipital
protuberance, medial portion of
superior nuchal line, ligamentum
nuchae, and spinous processes of
C-7 to T-12.
Insertion: Lateral 1/3 of clavicle,
http://www.preventdisease.com/home/muscleatlas/shtraplat.jpg
External Intercostals
Action: assist
w/inhalation by
pulling ribs up
 Origin: inferior
border of rib above
 Insertion: superior
border of rib below

http://www.worth1000.com/entries/20
000/20014_w.jpg
http://www.gpc.edu/~jaliff/serratus.gif
http://www.octc.kctcs.edu/gca
plan/anat/images/Image391.gif
Internal Intercostals
Action: assist
w/exhalation by
drawing the ribs
down
 Origin: inferior
border of rib
above
 Insertion: superior
border of rib below

http://www.yorku.ca/earmstro/jo
urney/images/intintercostals.gif
http://www.octc.kctcs.edu/gcaplan/anat/images/Image392.gif
Teres Major
A: extend, adduct,
medially rotate shoulder
(same as latissimus
dorsi).
 O: lateral inferior angle
and lower ½ of lateral
border of scapula.
 I: crest of lesser
tubercle of humerus
 Notes: "lat's little
helper." Synergist
w/lat. dorsi. Antagonist
to teres minor.

Back
http://www.rad.washington.edu/staticpix/atlas/teresmajorpost2.jpg
Front
http://www.rad.washington.edu/staticpix/atlas/teresmajorant2.jpg
Rotator Cuff Muscles
Four Muscles:
 Supraspinatus
 Teres Minor
 Infraspinatus
 Subscapularis

http://www.fitstep.com/Advanced/Anatomy/Rot_cuff.htm
Rotator Cuff Muscle 1 of 4:
Supraspinatus

A:
abducts shoulder
stabilizes head of
humerus in glenoid
cavity (common function
in all four rotator cuff
muscles)
O: supraspinous fossa of
the scapula
I: greater tubercle of the
humerus
Note: deep to trapezius,
runs under the acromion
process
1.
2.
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
http://www.rad.washingt
on.edu/staticpix/atlas/sup
raspinatuspost.jpg
http://www.shoulderdoc.co.uk/img/should
erdoc/cuff_tendons1.jpg
Rotator Cuff Muscle 2 of 4:
Teres Minor

A:
laterally rotate,
adducts, extends, and
horizontally abducts
shoulder
2. stabilizes head of
humerus in glenoid
cavity
O: superior ½ of lateral
border of scapula
I: greater tubercle of the
humerus
Note: antagonist to teres
major in rotation of
humerus
1.



http://www.rad.washington.edu/staticp
ix/atlas/teresminorpost.jpg
http://www.fotosearch.com/comp/LIF/LIF1
25/3D506030.jpg
http://www.chirotx.com/_derived/Shoulder_Pain_
Active_Release_Technique.html_txt_wpe2.gif
Rotator Cuff Muscle 3 of 4:
Infraspinatus




A: See teres minor
O: infraspinatus fossa of
scapula
I: greater tubercle of
the humerus
Note: convergent
muscle fibers.
Underneath trapezius
and deltoid. Synergist
w/teres minor in
rotation of shoulder
http://www.abcbodybuilding.com/anatomy/s
houldersanatomy1_files/image006.gif
http://mywebpages.comcast.net/wnor/postshouldermus1.jpg
http://www.weldoen.nl/schouder/img/rupturen_02.jpg
Rotator Cuff Muscle 4 of 4:
Subscapularis

A:
medially rotate shoulder
2. stabilize head of humerus
in glenoid cavity
O: subscapular fossa of
scapula
I: lesser tubercle of humerus
Note: On anterior surface
1.
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

http://www.orthop.washington.edu/_Rainbow/Album/10357m1ef96049-ad8d-4e97-a88a-cdbe200be928.jpg
Pectoralis Major

A:
adducts shoulder
2. medially rotates
shoulder
 O: medial ½ of
clavicle, sternum, and
cartilage of 1st-6th ribs
 I: crest of greater
tubercle of humerus
1.
http://www.rad.washington.edu/atlas/pectoralismajor.html
http://www.ironmanisrael.com/gallery/schwarzenegger_arno
ld/schwarzenegger_arnold_004.jpg
http://www.getbodysmart.com/ap/muscularsy
stem/armmuscles/menu/image.gif
Pectoralis Minor
A: depress, abduct,
anteriorly tilt scapula,
 O: 3rd-5th ribs
 I: coracoid process of
scapula

http://www.rad.washington.edu/staticpix/atlas/pectoralisminor.jpg
http://content.answers.com/main/content/wp/en-commons/thumb/e/ec/230px-Gray411.png
Serratus Anterior
A: abduct, depress
scapula; hold medial
border of scapula
 O: upper 8-9 ribs
 I: anterior surface of
medial border of scapula
 Note: well developed on
superheroes

http://www.okpatents.com/phosita/images/superhero.jpg
http://courses.washington.edu/hubio553/atlas/images/shserant.jpg
https://secure.contactdesigns.net/disabilityproducts.com/ht
docs/contactcommerce/images/items/Big%20Serrated.JPG
http://www.aurelia-art.com/art/cinema/daredevil.jpg
Levator Scapulae



A: elevate scapula,
downwardly rotate
scapula, laterally flex
head & neck, rotate
head & neck to same
side (singly); extend
head & neck (both)
O: transverse processes
of 1st- 4th cervical
vertebrae
I: upper medial border
& superior angle of
scapula
http://www.rad.washington.edu/staticpix/atlas/levatorscapulae2.jpg
http://www.vancouveryoga.com/assets/photos/levator.jpg
Rhomboideus Major
A: adduct scapula,
elevate scapula,
downwardly rotate
scapula
 O: Spinous
processes of T-2 to
T-5
 I: Medial border of
scapula

http://anatquest.nlm.nih.gov/VisibleHuman/ImageData/Rendered/jpg/DSR110224363.jpg
http://www.ncpad.org/get/images/strengthexercisehandouts/latpulldown_RHOM_MajorMinor.jpg
Rhomboid Minor
A: see rhomboid
major.
 O: Spinous processes
of C-7 and T-1
 I: medial border of
scapula

http://www.dartmouth.edu/~anatomy/assets/surface/shoulder/scsurface1.gif
http://www.rad.washington.edu/staticpix/atlas/rhomboids2.jpg
Latissimus Dorsi
A: extends shoulder,
adducts shoulder,
medially rotates
shoulder (same as teres
major)
 O: spinous processes of
last 6 thoracic
vertebrae, last 3 or 4
ribs, and posterior iliac
crest
 I: Crest of lesser
tubercle of humerus
(anterior aspect; same
insertion as teres
major)

http://www.octc.kctcs.edu/gcaplan/anat/images/Image359.gif
http://courses.washington.edu/hubio553/atlas/images/shtraplat.jpg
http://www.trans-health.com/images/latspread.jpg
Deltoid



A: abduct shoulder (all);
flex shoulder, medially
rotate shoulder,
horizontally adduct
shoulder (anterior
fibers); extend shoulder,
laterally rotate shoulder,
horizontally abduct
shoulder (posterior
fibers)
O: lateral 1/3 of
clavicle, acromion
process and spine of
scapula
I: deltoid tuberosity (of
humerus)
http://courses.washington.edu/hubio553/atlas/images/108.jpg
http://www.gpc.edu/~jaliff/deltoid.gif
Coracobrachialis
A: Flexes the
shoulder; adducts
the shoulder
 O: Coracoid process
of the scapula
 I: Medial surface of
the mid-humeral
shaft


"Armpit" muscle. In
anatomical position,
it is deep to
pectoralis major and
anterior deltoid.
http://www.gpc.e
du/~jaliff/hubibo
24.gif
http://www.rad.washington.edu/staticpix/atlas/co
racobrachialisant.jpg