multiple choice muscles....for second practical...

Origin:

-lumbar fascia

-inguinal ligament

-cartilages of last six ribs

-iliac crest

Insertion:

-linea alba

-pubic crest

Action:

compresses abdominal contents

Origin:

-lumbar fascia

-inguinal ligament

-iliac crest

Insertion :

-pubic crest

-costal margin

-linea alba

-last three or four ribs

Action:

-Flex vertebral column and compress abdominal wall when pair contracts simultaneously

-individually, aid muscles of back in trunk rotation and lateral flexion

-used in oblique curls

Origin:

-fleshy strips from outer surfaces of lower eight ribs

Insertion:

-most fibers insert into linea alba via a broad aponeurosis

-some insert into pubic crest and tubercle and iliac crest

Action:

-Flex vertebral column and compress abdominal wall when pair contracts simultaneously

-individually, aid muscles of back in trunk rotation and lateral flexion

-used in oblique curls

Origin:

-pubic crest

-pubic symphysis

Insertion:

-xiphoid process

-costal cartilages of ribs 5-7

Action:

-Flex and rotate lumbar region of vertebral column

Origin:

-cartilage of ribs 1-6 (or 7)

-aponeurosis of external oblique muscle

-sternal end of clavicle

-sternum

Insertion:

-fibers converge into a short tendon that inserts into the intertubercular sulcus of humerus

-greater tubercle of humerus

Action:

-Adducts and medially rotates arm against resistance

Origin:

anterior surfaces of ribs 3-5

Insertion:

coracoid process of scapula

Action:

-With ribs fixed, pulls scapula forward and downward

-With scapula fixed, pulls ribcage superiorly

Origin:

-manubrium of sternum

-medial portion of clavicle

Insertion:

-mastoid process of temporal bone

-superior nuchal line of occipital bone

Action:

Flexes and laterally rotates the head;

origin: transverse processes of cervical vertebrae

insertion: anterolaterally on ribs 1-2

action: elevate ribs 1-2

origin: transverse processes of cervical vertebrae

insertion: anterolaterally on ribs 1-2

action: elevate ribs 1-2

origin: transverse processes of cervical vertebrae

insertion: anterolaterally on ribs 1-2

action: elevate ribs 1-2

Origin: series of muscle branches from first 8 ribs

Insertion: entire anterior surface of medial border of scapula

Action: rotates scapula so its inferior angle moves laterally and upwards

origin:

spinous processes of C7 and all thoracic vertebrae

occipital bone

ligamentum nuchae

insertion:

lateral third of clavicle

acromion of scapula

spine of scapula

action: stabilizes, elevates, retracts, and rotates scapula

origin:

indirect attachment via lumbodorsal fascia into spines of last 6 thoracic vertebrae

last 3 or 4 ribs

iliac crest

insertion: spirals around teres major to insert in floor of tubercular sulcus of humerus

action: prime mover of arm extension, powerful arm adductor, medially rotates arm

origin:

supraspinous fossa of scapula

Insertion:

superior part of greater tubercle of humerus

action:

initiates abduction of arm

origin: infraspinous fossa of scapula

insertion: greater tubercle of humerus posterior to insertion of supraspinatus

action: rotates arm laterally

origin: subscapular fossa of scapula

insertion: lesser tubercle of humerus

action: rotates arm medially

origin: lateral border of dorsal scapular surface

insertion: greater tubercle of humerus inferior to infraspinatous insertion

action: rotates arm laterally

origin: posterior surface of scapula at inferior angle

insertion:

-crest of lesser tubercle on anterior humerus

-insertion tendon fused with that of latissimus dorsi

action:

extends, medially rotates, and adducts arms

origin: spinous processes of C7 and T1

spinous processes of T2-T5

Insertion: medial border of scapula

Action: stabilize scapula

Origin:

lateral third of clavicle

acromion and spine of scapula

insertion: deltoid tuberosity of humerus

action: primer mover of arm abduction when all its fibers contract simultaneously

Origin:

short head; coracoid process

long head; supraglenoid tubercle and lip of glenoid cavity

tendon of long head into intertubercular sulcus

Insertion: by tendon into radial tuberosity

action: flexes and supinates forearm

Origin: anterior surface of distal humerus

Insertion: coronoid process of ulna and capsule of elbow joint

action: a major forearm flexor

Origin:

long head; infraglenoid tubercle of scapula

lateral head: posterior shaft of humerus

medial head: posterior shaft of humerus distal to radial groove

Insertion:

common tendon into olecranon of ulna

action: powerful forearm extensor

ala of sacrum

iliac fossa

iliac crest

insertion:

lesser trochanter of femur via iliopsoas tendon

action: prime mover for flexing thigh

origin: anterior superior iliac spine

insertion: winds around medial aspect of knee and inserts into medial aspect of proximal tibia

action: flexes, abducts, and laterally rotates thigh

origin: dorsal ilium

coccyx

sacrum

insertion:

gluteal tuberosity of femur

iliotibial tract

action: major extensor of thigh

origin: between anterior and posterior gluteal lines on lateral surface of ilium

insertion: by short tendon into lateral aspect of greater trochanter of femur

action: abducts and medially rotates thigh

origin:

anterior aspect of iliac crest

anterior superior iliac spine

insertion: iliotibial tract

action: steadies the leg and trunk on thigh by tightening iliotibial tract

origin: anterior inferior iliac spine

superior margin of acetabulum

insertion: patella and tibial tuberosity via patellar ligament

action: extends leg and flexes thigh at hip

greater trochanter

intertrochanteric line

linea aspera

insertion:

patella and tibial tuberosity via patellar ligament

action: extends leg and stabilizes knee

origin:

linea aspera

intertrochanteric and medial supracondylar lines

insertion:

patella and tibial tuberosity via patellar ligament

action: extends leg

origin: anterior and lateral surfaces of proximal femur shaft

insertion: patella and tibial tuberosity via patellar ligament

action: extends leg

origin:

distal femur (short head)

ischial tuberosity

linea aspera

lateral supracondylar line

insertion:

common tendon into head of fibula

common tendon into lateral condyle of tibia

action: extends thigh and flexes leg

origin: ischial tuberosity in common with long head of biceps femoris

insertion: medial aspect of upper tibial shaft

action: extends thigh and flexes leg

origin: ischial tuberosity

insertion: medial condyle of tibia

lateral condyle of femur

action: extends thigh and flexes leg

origin: pubis near pubic symphysis

insertion: linea aspera

action: adducts, flexes, and medially rotates thigh

origin: ischial and pubic rami

ischial tuberosity

insertion:

linea aspera

adductor tubercle of femur

action: anterior part adducts and medially rotates and flexes thigh

posterior part is a synergist of hamstrings in thigh extension

origin: inferior ramus and body of pubis

adjacent ischial ramus

insertion: medial surface of tibia just inferior to its medial condyle

action: adducts thigh, flexes and medially rotates leg

origin:

lateral condyle and upper 2/3 of tibial shaft

interosseous membrane

insertion:

by tendon into interior surface of medial cuneiform and first metatarsal bone

action: prime mover of dorsiflexion

origin:

lateral condyle of tibia

proximal 3/4 of fibula

interosseus membrane

insertion: middle and distal phalanges of second to fifth toes via extensor expansion

action: prime mover of toe extension

origin: by two heads from medial and lateral condyles of femur

insertion: posterior calcaneus via calcaneal tendon

action: plantar flexes foot

origin:

extensive origin from superior tibia

fibula

interosseus membrane

insertion:

posterior calcaneus via calcaneal tendon

action: plantar flexes foot

origin: extensive origin on the posterior tibia

insertion: tendon runs behind the medial malleolus and inserts into distal phalanges of second to fifth toes

action: plantar flexes and inverts foot, flexes toes

origin: head and upper portion of lateral fibula

insertion: by long tendon that curves under foot to first metatarsal and medial cuneiform

action: plantar flexes and everts foot

origin: distal fibula shaft

insertion: by tendon running behind lateral malleolus to insert on proximal end of fifth metatarsal

action: plantar flexes and everts foot