http://utcom2014.wikispaces.com/file/view/
muscle pdf source
origin: thoracic-sacral vertebrae; ilium
insertion: humerus
action: adducts and extends arm at shoulder; brings
the arm down with force
lats:
pect. Major: origin: sternum; ribs 1-6; clavicle
insertion: humerus
action: flexes, adducts, and medially rotates arm
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Flashcards › Health & Medical › Muscles of the axial body › Printable Flashcards
Muscles of the axial body
Total Flash Cards » 19
Print Flashcard Text Size » S M L
Masseter
1.
O- Zygomatic Arch
I - Angle of Mandible
A - Elevates the Jaw
Name, origin, insertions and actions
Temporalis
2.
O - Temporal fossa
I - Coronoid process of the
Mandible
A - Elevates jaw
Name, origin, insertions and actions
Sternocleidomastoid
3.
O - Sternum and Clavicle
I - Mastoid process of temporal
bone
A - Flexes and rotates neck
Name, origin, insertions and actions
Levator Scapulae
4.
O - Transverse processes of the
upper cervical vertebra
I - Superior angle of Scapula
A - Flexes and rotates neck
Name, origin, insertions and actions
Trapezius
5.
O - Occiput, nuchal ligament and
spinous processes of C7-T12
I - Clavicle acromion process and
spine of scapula
A -Elevates, depresses, adducts, and
superiorly rotates the scapula
Name, origin, insertions and actions
Deltoid
O - Clavicle, acromion process and
spine of scapula
I - Deltoid tuberosity of the
humerus
A - Abduct, flex, and extend the arm
at the shoulder
6.
Name, origin, insertions and actions
Rhomboid Major and Minor
7.
O - Spinous process of C7 -T14
I - Vertebral Border of scapula
A - Adduct scapula
Name, origin, insertions and actions
Pectoralis Minor
O - Rib 3-5
I - Coracoid process of scapula
A - Adduct scapula
8.
Name, origin, insertions and actions
Pectoralis Major
O - Clavicle and Sternum
I - Lateral lip of biciptial groove
A - Flexes, adducts, and medially
rotates arm at shoulder
9.
Name, origin, insertions and actions
Serratus Anterior
10.
O - Lateral surface of first 8 ribs
I - Vertebral border of scapula
A - Abducts, protracts and
superiorly rotates scapula
Name, origin, insertions and actions
Latissimus dorsi
11.
O - iliac crest, sacrum, and lumbar
spine
I - Medial lip of bicipital groove
Name, origin, insertions and actions
Teres Major
12.
O - Inferior angle of scapula
I - Greater tubercle of the humerus
A - Abduction of the arm at the
shoulder
Name, origin, insertions and actions
Teres Minor
O - Lateral (Axillary) border of the
scapula
I - Greater tubercle of the humerus
A - External (lateral) rotation of the
arm at the shoulder
13.
Name, origin, insertions and actions
Supraspinatus
14.
O - Supraspinous fossa of the
scapula
I - Greater tubercle of the humerus
A - Abduction of the arm at the
shoulder
Name, origin, insertions and actions
Infraspinatus
15.
O - infraspinous fossa
I - greater tubercle of the humerus
A - external (lateral) rotation of the
arm at the shoulder
Name, origin, insertions and actions
Subscapularis
16.
O - subscapular fossa
I - lesser tubercle of the humerus
A - external (medial) rotation of the
arm at the shoulder
Name, origin, insertions and actions
Iliopsoas
O - Lumbar spine and iliac fossa
A - Lesser trochanter of femur
I - extends thigh at hip
17.
Name, origin, insertions and actions
Gluteus Maximus
18.
O - posterior iliac crest, sacrum and
coccyx
I - Gluteal tuberosity of femur
A -Extends thigh at hip
Name, origin, insertions and actions
Gluteus Medius
O - external ilium
I - greater trochanter of of femur
A - abducts thigh at hip
19.
Name, origin, insertions and actions
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About this set
Created by:
wykidlixswt23 on November 8, 2009
Subjects:
Biology 201
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Muscles: Origin, Insertion, and Action
?
Latin First
Both Sides
Gracillis
Origin: Symphysis Pubis Insertion: Proximal, medial tibia Action:
Adducts thigh, flexes leg
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Pectoralis Major
Origin: Clavicle, sternum, cartilages of ribs 1-7 Insertion: Crest of greater tubercle of
humerus Action: flexes, adducts, and medially rotates arm
Deltoid
Origin: Clavicle, acromion process, spine of scapula Insertion: Deltoid tuberosity of
the humerus Action: Abducts arm; flexes, extends, medially, and laterally rotates arm
Teres Major
Origin: Inferior angle of scapula Insertion: Crest of lesser tubercle of humerus Action:
Extends, adducts, and medially rotates arm
Subscapularis
Origin: Subscapular fossa Insertion: Lesser tubercle of humerus Action: Medially
rotates arm, stabilizes shoulder joint
Latissimus Dorsi
Origin: T7-12, L1-5, S1-5, Crest of ilium, ribs 10-12 Insertion: Intertubercular groove
of humerus Action: Extends, adducts, and medially raises arm; draws shoulder
inferiorly.
Supraspinatus
Origin: Suprapinous Fossa Insertion: Greater tubercle of humerus Action: Abducts
arm, helps stabilize shoulder joint
Infraspinatus
Origin: Infraspinous Fossa Insertion: Greater tubercle of humerus Action: Laterally
rotates arm, stabilizes shoulder joint
Teres Minor
Origin: Lateral border of scapula Insertion: Greater tubercle of humerus Action:
Laterally rotates and adducts arm, stabilizes shoulder joint
Biceps Brachii
Origin: Long head; superior margin of glenoid fossa Short Head; Coracoid process of
scapula Insertion: Radial Tuberosity Action: Flexes arm, flexes forearm, supinates
hand
Brachialis
Origin: Anterior, distal surface of humerus Insertion: coronoid process of ulna Action:
Flexes forearm
Triceps Brachii
Origin: Infraglenoid tuberosity of scapula, lateral and posterior surface of humerus
Insertion: Olecranon process, tuberosity of ulna Action: Extends and adducts arm,
extends forearm
Brachioradialis
Origin: Lateral supracondylar ridge of humerus Insertion: styloid process of radius
Action: Flexes forearm
Gracillis
Origin: Symphysis Pubis Insertion: Proximal, medial tibia Action: Adducts thigh, flexes
leg
Tensor fasciae latae
Origin: iliac crest, anterior iliac surface Insertion: iliotibial band of fasciae latae Action:
Flexes, abducts, and medially rotates thigh
Gluteus Maximus
Origin: Outer iliac blade, iliac crest, sacrum, coccyx Insertion: Gluteal tuberosity of
femur, iliotibial band of fasciae latae Action: Extends and laterally rotates thigh,
braces knee
Gluteus Medius
Origin: Outer iliac blade Insertion: Greater trochanter of femur Action: Abducts and
medially rotates thigh
Adductor Magnus
Origin: Pubis, ischium Insertion: Gluteal tuberosity, linea aspera, adductor tubercle of
distal femur Action: Adducts, flexes, extends and laterally rotates thigh
Sartorius
Origin: Anterior superior iliac spine Insertion: Proximal, medial tibia Action: Flexes and
laterally rotates thigh, flexes leg
Rectus Femoris
Origin: Anterior inferior iliac spine, margin of acetabulum Insertion: Tibial tuberosity by
patellar tendon Action: Flexes thigh, extends leg
Vastus Lateralis
Origin: Greater trochanter of femur, linea aspera of femur Insertion: Tibial tuberosity
by patellar tendon Action: Extends Leg
Vastus medialis
Origin: Linea aspera, medial side Insertion: Tibial tuberosity by patellar tendon Action:
Extends Leg
Vastus Intermedius
Origin: Proximal, anterior femur Insertion: Tibial tuberosity by patellar tendon Action:
Extends Leg
Biceps Femoris
Origin: Ischial tuberosity, Linea aspera Insertion: Head of fibula, lateral condyle of
tibia Action: Extends thigh, flexes leg
Semitendinosus
Origin: Ischial Tuberosity Insertion: Proximal, medial tibia Action: Extends thigh,
flexes leg
Semimembranosus
Origin: Ischial tuberosity Insertion: Medial condyle of tibia Action: Extends thigh,
flexes leg
Tibialis anterior
Origin: Lateral condyle and proximal tibia Insertion: First metatarsal and first
cuneiform Action: Dorsiflexes and inverts foot
Gastrocnemius
Origin: Condyles of femur Insertion: Calcaneus by calcaneal tendon Action: Flexes
leg, plantar flexes foot
Soleus
Origin:Posterior, proximal tibia and fibula Insertion: Calcaneus by calcaneal tendon
Action: Plantar flexes foot
Peroneus longus
Origin: Head and shaft of fibula, lateral condyle of tibia Insertion: First metatarsal, first
cuneiform Action: Plantar flexes and everts foot
Extensor digitorum
Origin: Lateral COndyle of tibia, shaft of fibula Insertion: Middle of distal phalanges of
longus
second through fifth digits Action: Extends toes, dorsiflexes foot
Pectoralis minor
Origin: Insertion: Action:
External intercostal
Origin: Inferior border of a rib Insertion: Superior border of rib below Action: Elevates
ribs (increases volume in thorax)
Internal intercostals
Origin: Inferior border of a rib Insertion: Superior border of rib below Action:
Depresses ribs (decreases volume in thorax)
Tapezius
Origin: Posterior occipital bone, ligamentum nuchae, C7-T12 Insertion: Clavicle,
Acromion process, and spine of scapula Action: Extends and abducts head, rotates
and adducts scapula, fixes scapula
Rhomboid major
Origin: Spines of T2-5 Insertion: Lower one-third of vertebral border of scapula Action:
adducts scapula (draws scapulae together)
Rhomboid minor
Origin: Ligamentum nuchae, Spines C7-T1 Insertion: Vertebral border of scapula at
scapular spine Action: Adducts scapula (draws scapulae together)
Frontalis
Origin: Galea aponeurotica Insertion: Skin superior to orbit Action: Raises eyebrows,
draws scalp anteriorly
Orbicularis oris
Origin: Fascia of facial muscles near mouth Insertion: Skin of lips Action: Closes lips
Orbicularis oculi
Origin: Frontal and maxilla on medial margin of orbit Insertion: Skin of eyelid Action:
Closes eyelid
Masseter
Origin: Zygomatic arch Insertion: Angle and ramus of mandible Action: Closes
mandible
Temporalis
Origin: Temporal fossa Insertion: coronoid process and ramus of mandible Action:
Closes mandible
Sternocleidomastoid
Origin: Sternum, clavicle Insertion: Mastoid process of temporal Action: Abducts,
rotates, and flexes head
Serratus Anterior
Origin: Ribs 1-8 Insertion: Vertebral border and inferior angle of scapula Action:
Abducts scapula (moves scapula away from spinal column)
Rectus Abdominis
Origin: Crest of pubis, symphysis pubis Insertion: Cartilages of ribs 5-7, xiphoid
process Action: Flexes vertebral column, compresses abdominal wall
External oblique
Origin: Ribs 5-12 Insertion: Linea alba, iliac crest, pubis Action: Compresses
abdominal wall, laterally rotates trunk
Internal oblique
Origin: Inguinal ligament, iliac crest Insertion: Linea alba, ribs 10-12 Action:
Compresses abdominal wall, laterally rotates trunk
Transverse
abdominus
Origin: Insertion: Action: