Final Exam Flashcards
Trapezius Origin
Base of skull (occipital protuberance), posterior ligaments of neck, spinous processes of C7- T12
Trapezius Insertion
C.A.SS
posterior aspect of the lateral third of clavicle, Medial border of acromion process and upper border of scapular spine, Triangular space at base of scapular spine
Trapezius Action
Upper: Elevation, Upward rotation, Extension of head at neck, Rotation of head at neck Middle: Elevation, Adduction, Upward rotation Lower: Adduction, Depression, Upward Rotation
Rhomboid minor and major Origin
C7-T5
Rhomboid Minor and MAJ. Insetion
Medial border of the scapula below the spine
Rhomboid Minor and MAJ. action
Adduction, Downward rotation, Elevation
Deltoid Origin
C.A.SS
Anterior lateral third of clavicle, lateral aspect of acromion, inferior edge of spine of scapula
Deltoid Insertion
Deltoid tuberosity on lateral humerus
Deltoid Action
Anterior- Abduction, Flexion, Horizontal adduction,
internal rotation, diagonal adduction
Middle- Abduction, Horizontal abduction
Posterior- Abduction, Horizontal abduction, External rotation, Diagonal abduction
Latissimus Dorsi Origin
Posterior crest of ilium, back of sacrum and spinous processes of lumbar and lower six thoracic vertebrae, slips from lower three ribs
Latissimus Dorsi Insertion
Medial lip of inter-tubercular groove of humerus
Latissimus Dorsi Action
Extension, Adduction, Internal rotation, Horizontal Abduction
Coracobrachialis Origin
Coracoid process of the scapula
Coracobrachialis Insertion
Middle of the medial border of the humeral shaft
Coracobrachialis Action
Horizontal adduction,
Diagonal Adduction
Subscapularis Origin
entire anterior surface of sub scapular fossa
Subscapularis Insertion
lesser tubercle of humerus
Subscapularis Action
Internal rotation, adduction, extension
Supraspinatus Origin
Medial two thirds of supraspinous fossa
Supraspinatus Insertion
Superiorly on greater tubercle of humerus
Supraspinatus Action
Abduction
Biceps Femoris Origin
long head: ischial tuberosity
short head: lower half of the line aspera, and lateral condyloid ridge
Biceps femoris insertion
lateral condyle of the tibia and head of the fibula
Biceps femoris action
flexion of the knee, extension of the hip, external rotation of the hip and flexed knee, posterior pelvic rotation
Semitendinosus origin
ischial tuberosity
Semitendinosus insertion
anterior medial surface of the tibia below the condyle
Semitendinosus action
flexion of knee, extension of hip, internal rotation of the hip, internal rotation of the flexed knee, posterior pelvic rotation
Semimembranosis origin
ischial tuberosity
Semimembranosis insertion
posteromedial surface of the medial tibial condyle
Semimembranosis action
flexion of the knee, extension of the hip, internal rotation of the hip and flexed knee, posterior pelvic rotation
Gluteus maximus origin
posterior fourth of the crest of the ilium, posterior surface or the sacrum of the coccyx near the illium, and fascia of the lumbar area
Gluteus maximus insertion
oblique ridge (gluteal tuberosity) on the lateral surface of the greater trochanter and the illiotibial band of the fascia latae
Gluteus maximus action
extension of the hip, external rotation of the hip, upper fibers: assist in hip abduction lower fibers: assist in hip adduction posterior pelvic rotation
Tensor fasciae latae origin
anterior iliac crest and surface of the ilium just below the surface of the crest
Tensor fasciae latae insertion
one fourth of the way down the thigh into the iliotubial tract, which intern inserts onto gerdy’s tubercle of the anterolateral tibial condyle.
Tensor Fasciae Latae action
abduction and flexion of the hip
rotation of the hip internally w/ flexion
anterior pelvic rotation
Rectus Femoris insertion
Superior aspect of the patella and the patellar tendon to the tibial tuberosity
Rectus Femoris Origin
anterior inferior iliac spine of the ilium and grove above the acetabulum
Rectus femoris action
flexion of hip, extension of knee, anterior pelvic rotation
Vastus lateralis origin
intertrochanteric line, anterior and inferior border of the greater trochanter, gluteal tuberosity, upper half of the linea aspera, and entire lateral inter muscular septum
Vastus lateralis insertion
lateral border of the patella and patellar tendon to the tibial tuberosity
Vastus lateralis action
extension of the knee
Gastrocnemius Origin
Medial head: Posterior surface of Medial femoral condyle
Lateral Head: posterior surface of lateral femoral condyle
Gastrocnemius Insertion
posterior surface of calcaneus
Gastrocnemius Action
Ankle Plantar Flexion
Flexion of Knee
Soleus Origin
2/3 of posterior tibial surface
posterior surface of proximal fibula
Soleus Insertion
Posterior Surface of calcaneus
Soleus Action
Plantar Flexion of ankle
Tibialis Anterior Origin
Upper two-thirds of lateral surface of tibia
Tibialis anterior insertion
inner surface of medial cuneiform
Base of first metatarsal bone
Tibialis Anterior action
Dorsiflexion of ankle
inversion of foot
Tibialis Posterior origin
Posterior surface of the upper interosseus membrane
Adjacent surfaces of tibia & fibula
Tibialis Posterior insertion
Inferior surfaces of Navicular, Cuneiform, and Cuboid bones
Bases of 2,3,4 metatarsal bones
Tibialis Posterior Action
Plantar Flexion of Ankle
Inversion of the foot
Rectus abdominis origin
crest of pubis
Rectus Abdominis insertion
cartiliage of 5,6,7 ribs
xiphoid process
Rectus Abdominis action
lumbar flexion
posterior pelvic rotation
internal oblique origin
upper half of inguinal ligament
anterior 2/3 of crest of ilium
lumbar fascia
internal oblique insertion
costal cartilages of 8,9,10 ribs
linea alba
internal oblique action
posterior pelvic rotation
both sides: lumbar flexion
Right side: lumbar lateral flexion to the right & rotation to right, lateral pelvic rotation to left
Left side: lumbar lateral flexion to left & rotation to left, lateral pelvic rotation to right
