Download Muscle origins, insertions and actions

ORIGINS, INSERTIONS AND PRIME MOVER ACTIONS OF MUSCLES IN FIGURE 6.8
Muscle
Adductor Longus
Adductor Magnus
Origin
Anterior surface of pubis
Ischial and pubic rami and ischial tuberosity
Biceps Brachii
Long head – upper margin of glenoid fossa;
short head – coracoid process of scapula
Long head – ischial tuberosity; short head –
linea aspera of femur
Biceps Femoris
Brachialis
Anterior surface of lower ½ of humerus
Brachioradialis
Upper 2/3rd of lateral supracondylar ridge of
humerus
Anterior border of outer 1/3rd of clavicle
Deltoid - Anterior
- Medial
Acromion process and lateral end of clavicle
- Posterior
Lower margin of spine of scapula
Extensor Digitorum
Lateral epicondyle of humerus
Extensor Digitorum
Longus
Extensor Carpi
Radialis Longus
Extensor Carpi
Ulnaris
External Obliques
Lateral condyle of tibia and upper ¾ of
anterior surface of fibula
Lateral epicondyle and supracondylar ridge
of humerus
Lateral epicondyle of humerus and posterior
border of ulna
Outer surfaces of lower eight ribs
Insertion
Actions
Adducts thigh
Adducts thigh
Medial half of linea aspera
on the femur
Radial (bicipital) tuberosity
of radius
Lateral aspect of head of
fibula and lateral condyle of
tibia
Anterior surface of
coranoid process of ulna
Base of styloids process of
humerus
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}Deltoid tuberosity of
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Distal phalanges of fingers
2-5
Second and third phalanges
of four lesser toes
Base of 2nd metacarpal
Extends and horizontally extends
humerus
Extends fingers at metacarpophalangeal
and interphalangeal joints
Dorsiflexes and everts foot and extends
toes
Extends and abducts wrist
Base of 5th metacarpal
Extends and adducts wrist
Anterior half of crest of
ilium and from ribs to
public crest
Flexes and laterally flexes trunk, rotates
trunk to opposite side
Flexes and supinates forearm
Flexes knee; long head extends thigh
Flexes forearm
Flexes forearm
Flexes and horizontally flexes humerus
Abducts and horizontally flexes humerus
Flexor Carpi Radialis
Flexor Carpi Ulnaris
Gastrocnemius
Gluteus Maximus
Gluteus Medius
Gracilis
Iliopsoas
Infraspinatus
Base of 2nd metacarpal
Pisiform bone and base of
5th metcarpal
Calcaneus through Achilles
tendon
Posterior surface of femur
at gluteal tuberosity,
iliotibial tract
Lateral surface of ilium between anterior and Lateral aspect of greater
posterior gluteal lines
trochanter of femur
Inferior ramus and body of pubis
Medial surface of tibia just
below medial condyle
Iliacus – iliac fossa; Psoas Major – transverse Lesser trochanter of femur
processes, bodies and discs of 12th thoracic
vertebra and all lumbar vertebrae
Medial 2/3rd of infraspinous fossa of scapula Greater tubercle of humerus
Medial epicondyle of humerus
Medial epicondyle of humerus, posterior
surface and olecranon process of ulna
By two heads from medial and lateral
condyles of femur
Posterior gluteal line of ilium, lower part of
sacrum, coccyx
Intercostals
External – inferior border of rib above;
Internal – superior border of rib below
Internal Obliques
Linea alba, pubic crest and lower three ribs
Latissimus Dorsi
Spinous processes of lower six thoracic and
all lumbar vertebrae, posterior surface of
sacrum, iliac crest, lower three ribs
Medial epicondyle of humerus
Pectineal line of pubis on superior ramus
Palmaris Longus
Pectineus
Pectoralis Major
Medial 2/3rd of anterior border of clavicle,
anterior surface of sternum, cartilage of ribs
1-6
External – superior border
of rib below; Internal –
inferior border of rib above
Crest of ilium and inguinal
ligament
Inferior portion of
intertubercular groove of
humerus
Palmar aponeurosis
Pectineal line of femur
between lesser trochanter
and linea aspera
Greater tubercle of humerus
(lateral surface of humerus)
Flexes and abducts wrist
Flexes and adducts wrist
Plantar flexes foot; can help flex knee
Extends and externally rotates thigh
Abducts and internally rotates thigh
Adducts thigh; helps extend and
internally rotate knee
Flexes thigh
Outwardly rotates and horizontally
extends humerus
Respiration
Flexes and laterally flexes trunk, rotates
trunk to same side
Extends and adducts humerus
Weak flexor of wrist
Flexes and adducts thigh
Flexes, internally rotates, adducts and
horizontally flexes humerus
Pectoralis Minor
Peroneus Longus
Pronator Teres
Rectus Abdominis
Rectus Femoris
Rhomboideus Major
Sartorius
Semimembranosus
Semitendinosus
Serratus Anterior
Soleus
Sternocleidomastoid
Tensor Fasciae Latae
Teres Major
Anterior surfaces of ribs 3 to 5
Tip of coracoid process of
scapula
Lateral condyle of tibia, head and upper 2/3rd Lateral margin of plantar
of fibula
surface of medial
cuneiform and base of first
metatarsal
Medial epicondyle of humerus, coronoid
Lateral surface of radius
process of ulna
near middle
Cartilages of ribs 5 to 7
Pubic crest and pubic
symphysis
Anterior inferior iliac spine and superior
Base of patella and, by
margin of acetabulum
patellar ligament, tibial
tuberosity
th
Spinous processes of 7 cervical vertebra and Medial border of scapula
all thoracic vertebrae
Anterior superior iliac spine
Anterior and medial surface
of tibia just below medial
condyle
Upper and lateral aspects of ischial tuberosity Medial condyle of tibia
Lower and medial aspects of ischial
tuberosity
Outer surfaces of upper nine ribs at side of
chest
Posterior surface of head of fibula and upper
2/3rd of shaft, medial border of middle 1/3 of
tibia
Manubrium of sternum; medial 1/3rd of
clavicle
Anterior aspect of iliac crest and anterior
superior iliac spine
Posterior surface of inferior angle of scapula
Upper part of medial
surface of shaft of tibia
Anterior surface of medial
border of scapula
Calcaneus through Achilles
tendon
Mastoid process of
temporal bone
Iliotibial tract
Crest of lesser tubercle on
Depresses, protracts and downwardly
rotates scapula
Everts foot
Pronates forearm
Flexes trunk
Flexes thigh and extends knee
Elevates, retracts and downwardly rotates
scapula
Helps flex and laterally rotate thigh and
flex knee
Extends thigh; flexes and internally
rotates knee
Extends thigh; flexes and internally
rotates knee
Protracts and upwardly rotates scapula
Plantar flexes foot
Flexes, laterally flexes, and rotates to the
opposite side the head and cervical spine
Helps flex, abduct and internally rotate
thigh
Extends, adducts and internally rotates
rd
Tibialis Anterior
Lateral condyle and upper 2/3 of lateral
surface of tibia
Transversus
Abdominis
Trapezius
Inguinal ligament, iliac crest, lumbodorsal
fascia, cartilages of lower six ribs
Occipital bone, ligamentum nuchae, spinous
processes of 7th cervical vertebra and all
thoracic vertebrae
Triceps Brachii
Long head – infraglenoid tuberosity of
scapula; lateral head – posterior surface of
upper half of humerus; medial head –
posterior surface of lower 2/3rd of humerus
Greater trochanter, upper part of
intertrochanteric line, and linea aspera of
femur
Linea aspera and lower half of
intertrochanteric line of femur
Vastus Lateralis
Vastus Medialis
anterior surface of humerus
Inferior surface of medial
cuneiform and first
metatarsal
Linea alba and pubic crest
humerus
Dorsiflexes and inverts foot
Acromion process, spine of
scapula and posterior
border of lateral 1/3rd of
clavicle
Olecranon process of ulna
Retracts and upwardly rotates scapula;
upper fibres elevate scapula; middle
fibres retract scapula; lower fibres
depress scapula
Extends forearm
Base of patella and, by
patellar ligament, tibial
tuberosity
Base of patella and, by
patellar ligament, tibial
tuberosity
Extends knee
Compresses abdominal contents
Extends knee