Actions of Leg and Trunk Flashcards
action of iliacus
- thigh flexion
- trunk flexion
action of tensor fasciae latae
- flexion, abduction and medial (internal) rotation of thigh
action of sartorius
- flexion, abduction and external rotation of thigh
- leg flexion
action of rectus femoris
- leg extension
- thigh flexion
action of vastus lateralis
- leg extension
action of vastus medialis
- leg extension
action of vastus intermedius
leg extension
action of pectineus
- adduction, flexion and medial (internal) rotation of thigh
action of gracilis
- adduction, flexion and medial (internal) rotation of thigh
action of adductor longus
- adduction, flexion and medial (internal) rotation of thigh
action of adductor brevis
- adduction and medial (internal) rotation of thigh
action of adductor magnus
anterior = adducts, flexes and medially (internally) rotates thigh
posterior = thigh extension
action of bicep femoris
- thigh extension
- leg flexion
- lateral (external) rotation of leg
action of semitendinosus
- thigh extension
- leg flexion
- medial (interal) rotation of leg
action of semimembranosus
- thigh extension
- leg flexion
- medial (interal) rotation of leg
action of piriformis
- laterally (externally) rotates thigh
- abducts the femur during hip flexion
action of gluteus maximus
- extensor of thigh
action of gluteus medius
- abduction and medial (internally) rotates thigh
action of gluteus minimus
- abduction and medial (internally) rotates thigh
action of tibialis anterior
- dorsiflexion
- inverts foot
action of gastrocnemius
- plantar flexion of foot
action of soleus
- plantar flexion of foot
action of obturator externus
- rotates extended thigh laterally`
action of obturator internus
- laterally (externally) rotates thigh
- abducts the femur during hip flexion
action of superior and inferior gemellus
- laterally (externally) rotates thigh
- abducts the femur during hip flexion
action of quadratus femoris
rotates thigh laterally and stabilizes hip joint
action of external oblique
- flexion of vertebral column
- lateral flexion of trunk
action of transversus abdominis
compresses abdominal contents
action of rectus abdominis
- flex and rotate lumbar spine
- depress ribs
action of external intercostals
- pull ribs toward one another to elevate rib cage
action on internal intercostals
- draw ribs together and depress rib cage
action of diaphragm
- prime mover of inspiration
- flattens on contraction
action of scalenes
- elevate first two ribs
- flex and rotarte neck
action of iliocostalis
- extension and lateral flexion of vertebral column
action of longissimus
thoracic + cervical = extension and lateral flexion of vertebral column
capitis= extend and rotate the head to same side
action of spinalis
- extension of verterbal column
action of semispinalis
- extension and rotation of vertebral column and head
action of quadratus lumborum
- lateral flexion of vertebral column
action of external urethral sphinter
constricts urethra and allows voluntary urination
action of ischiocavernosus
maintains erection of penis + clitoris
action of bulbospongiosus
- assists in erection of penis + clitoris
- empties male urethra
action of superficial transverse perineal muscle
strengthens and stabilizes the perineal body
