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65 Cards in this Set
- Front
- Back
orbicularis oculi
(origin) |
medial wall of the orbit of the eye
|
|
orbicularis oculi
(Insertion) |
medial wall of the orbit
|
|
Orbicularis oculi
(action) |
closes the eyelid
|
|
orbicularis oris
(origin) |
opening of the mouth
|
|
orbicularis oris
(Insertion) |
the skin at th corners of the mouth (the muscle follows a circular path around the mouth)
|
|
orbicularis oris
(action) |
closes the mouth
|
|
zygomaticus major
(Origin) |
zygomatic bone
|
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zygomaticus major
(insertion) |
the skin at the corners of the mouth and the orbicularis oris
|
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zygomaticus major
(action) |
elevates the skin a the corners of the mouth (smiling)
|
|
depressor anguli oris
(origin) |
anterior 1/3 of the body of the mandible, lateral to the mental foramen
|
|
depressor anguli oris
(insertion) |
angle of the mouth
|
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depressor anguli oris
(action) |
pulls the corners of the mouth down
|
|
temporalis
(origin) |
temporal fossa
|
|
temporalis
(insertion) |
coronoid process and ramus of the mandible (muscle passes deep to the zygomatic arch)
|
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temporalis
(action) |
elevation of the mandible
|
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masseter
(origin) |
maxilla and the anterior prtion of the zybomatic arch
|
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masseter
(insertion) |
angle and the ramus of the mandible
|
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masseter
(action) |
elevation of the mandible
|
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sternocleidomastoid
(origin) |
the sternum and the clavicle
|
|
sternocleidomastoid
(insertion) |
the mastoid process of the temporal bone
|
|
sternocleidomastoid
(actions) |
flexion of the cervical vertebrea when both contract
rotation of the head thot he opposite side when only one contracts |
|
diaphragm
(origin) |
the xiphoid process, the costal cartilage of the last 6 ribs and the lumbar vertebrae
|
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diaphragm
(insertion) |
the central tendon of the diaphragm
|
|
diaphragm
(action) |
inspiration (inhailing) = contracts
relaxation=(expiration) exhailing |
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external intercostals
(origin) |
the inferior border of the superior rib
|
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external intercostals
(insertion) |
the superior border of the inferior rib
|
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external intercostals
(action) |
elevation of the rib cage during inspiration
|
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internal intercostals
(origin) |
the superior border of the inferior rib
|
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internal intercostals
(insertions) |
the inferior border of the superior rib
|
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internal intercostals
(actions) |
depression of the rib cage during expiration
|
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rectus abdominis
(origin) |
the pubic crest and the symphysis pubis
|
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rectus abdominis
(insetition) |
the xiphoid process and the costal cartilage of ribs 5,6, and 7
|
|
rectus abdominis
(action) |
flexion of the vertebral column
|
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external obliques
(origin) |
the last eight ribs
|
|
external obliques
(insertion) |
the iliac crest and the linea alba
|
|
external obliques
(action) |
both: flexion of the vertebral column
single: lateral flexion of the vertebral column to the same side |
|
internal obliques
(origin) |
the ilaic crest , the inguinal ligament and the thoracolumbar fascia
|
|
internal obliques
(insertion) |
the coastal cartilage of the last 4 ribs and the linea alba
|
|
internal obliques
(action) |
both: flexion of the vertebral column
single: lateral flexion of the vertebral column to the same side |
|
transversus abdominis
(origin) |
the iliac crest, the inguinal ligament, the lumbar fascia and the costal cartilage of the last 6 ribs
|
|
pectoralis minor
(origin) |
ribs 3 through 5
|
|
pectoralis minor
(insertion) |
the coracoid process fo the scapula
|
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prctoralis minor
(action) |
stabalize the scapula
protraction of the scapula (rolls the shoulder) |
|
serratus anterior
(anterior) |
the superior eight or nine ribs
|
|
serratus anterior
(insertion) |
the coracoid process of the scapula
|
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serratus anterior
(action) |
protraction of the scapuls
upward rotaiton of the scapula abduction of the scapula |
|
trapezius
(origin) |
the occipital bone and spinous process of C7 throught T12
|
|
trapezius
(insertion) |
the lateral 1/3 of the clavical, the acromion and the spine of the scapula
|
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trapezius
(action) |
all: stabilizes the scapula
superior fibers: elevation of the scapula intermediate fibers: adduction of the scapula superior fibers: depression of the scapula (relaxing) |
|
levator scapulae
(origin) |
the vertebral bodies of C1 through C4
|
|
levator scapulae
(insertion) |
the superior angle of the scapula
|
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levator scapulae
(action) |
elevation of the scapula and rotates the scapula
|
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rhomboid major
(origin) |
the spinous processed of T2 through T5
|
|
rhomboid major
( insertion) |
the vertebral border of the scapula, inferior to the spine
|
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rhomboid major
(action) |
stabilizes the scapula
retraction of the scapula adduction of the scapula |
|
rhomboid minor
(origin) |
the spinous processes of C7 through T1
|
|
rhomboid minor
(insertion) |
the vertebral border of the scapula superior to the spine
|
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rhomboid minor
(action) |
stabilizes the scapula
retraction (elevation) and adduction of the scapula |
|
subscapularis
(rotator cuff) |
origin: the subscapular fossa of the scapula
insertion: the lesser tubercle of the humerus action: stabilizes the shoulder joint medial rotation of the humerus |
|
supraspinatus
(rotator cuff) |
origin: the supraspinous fossa of the scapula
insertion: the greater tubercle of the jumerus action: stabilizes the shoulder joint, weak abduction of the shoulder joint |
|
infraspinatus
(rotator cuff) |
origin: the infraspinous fossa of the scapula
insertion: the greater tubercle of the humerus action: stabilizes the shoulder joint, lateral rotation of the humerus, weak adduction of the shoulder joint |
|
teres minor
(rotator cuff) |
origin: inferior lateral border of the scapula
insertion: the greater tubercle of the humerus action: stabilizes the shoulder joint, lateral rotation of the humerus, adduction of the shoulder |
|
teres major
(not a rotator cuff muscle) |
origin: inferior angle of hte scapula
insertion: medial lip of the intertubercular sulcus of the humerus action: extension of the shoulder joint, assests in lateral rotation and adduction |
|
deltoid
(the baseball pitcher's muscle) |
origin: the lateral 1/3 of the clavical, the acromion and the spine of the scapula
insertion: the deltoid tuberosity action: (main) abduction of th shoulder joint,lateral head = weak abduction of the shoulder joint, posterior head= hyperextension of the shoulder joint |
|
pectoralis major
|
origin: the medial end of the clavicle, the sternum and the costal cartilage of ribs 2 through 6
insertion: the lateral surface and the greater tubercle of the humerus action: adduction of the humerus, medial rotation of the humerus |