Lab 5: Origins, Insertions, Actions Flashcards
what is the origin of the adductor longus?
-pubis
-crest + symphysis
what is the insertion of the adductor longus?
-femur
what is the action of the adductor longus?
-adducts + flexes thigh @ hip joint
-rotates thigh
what is the origin of the adductor magnus?
-pubis
-ischium
-ischial tuberosity
what is the insertion of the adductor magnus?
-femur
what is the action of the adductor magnus?
-adducts thigh @ hip joint
-rotates thigh
-anterior: flexes thigh @ hip joint
-posterior: extends thigh @ hip joint
what is the origin of the gracillis?
-pubis
what is the insertion of the gracillis?
-tibia
what is the action of the gracillis?
-adducts thigh @ hip joint
-medially rotates thigh
-flexes leg @ knee joint
what is the origin of the iliacus?
-sacrum
-ilium
what is the insertion of the iliacus?
-femur
what is the action of the ilacus and psoas major?
-flexes thigh @ hip joint
-rotates thigh laterally
-flexes trunk on the hip (sitting up from lying down)
what is the origin of the psoas major?
-lumbar vertebrae
what is the insertion of the psoas major?
-femur
what do the iliacus and the psoas major form?
iliopsoas
what is the origin of the pectineus?
-pubis
what is the insertion of the pectineus?
-femur
what is the action of the pectineus?
-flexes + adducts thigh @ hip joint
what is the origin of the rectus femoris?
-ilium
-iliac spine
what is the insertion of the rectus femoris, vastus lateralis, and vastus medialis?
-patella
-tibia
-tibial tuberosity
what is the origin of the vastus lateralis?
-femur
what is the origin of the vastus medialis?
-femur
what is the action of the rectus femoris?
-extends the leg @ knee joint
-flexes thigh @ hip joint
what is the action of the vastus medialis and vastus lateralis?
-extends the leg @ knee joint
what do the rectus femoris, vastus medialis, and vastus lateralis create?
-quadriceps femoris
what is the origin of the sartorius?
-ilium
-iliac spine
what is the insertion of the sartorius?
-tibia
what is the action of the sartorius?
-weakly flexes leg @ knee joint
-weakly flexes, abducts, and laterally rotates thigh @ hip joint
what is the origin of the tensor fasciae latae?
-ilium
-iliac crest
-iliac spine
what is the insertion of the tensor fasciae latae?
-tibia
what is the action of the tensor fasciae latae?
-flexes + abducts the hip
what is the origin of the gluteus maximus?
-ilium
-iliac crest
-sacrum + coccyx
what is the insertion of the gluteus maximus?
-femur
what is the action of the gluteus maximus?
-extends and laterally rotates thigh @ hip
what is the origin of the gluteus medius?
-ilium
what is the insertion of the gluteus medius?
-femur
what is the action of the gluteus medius?
-abducts and medially rotates thigh @ hip
what is the origin of the biceps femoris?
-long head: ischium (ischial tuberosity)
-short head: femur
what is the insertion of the biceps femoris?
-fibula
-tibia
what is the action of the biceps femoris and the semimembranosus?
-extends thigh @ hip joint
what is the origin of the semimembranosus?
-ischium
-ischial tuberosity
what is the insertion of the semimembranosus?
-tibia (tibia medial > tibial tuberosity)
what is the origin of the semitendinosus?
-ischium
-ischial tuberosity
what is the insertion of the semitendinosus?
-tibia
what is the action of the semitendinosus?
-extends thigh @ hip joint
-flexes leg @ knee joint
what do the biceps femoris, semimembranosus, and semitendinosus form?
-hamstrings
what is the origin of the extensor digitorum longus?
-tibia
-fibula
what is the insertion of the extensor digitorum longus?
-phalanges of toes 2-5
what is the action of the extensor digitorum longus?
-dorsiflexes foot
-extends phalanges
what is the origin of the fibularis (peroneus) longus?
-fibula
what is the insertion of the fibularis (peroneus) longus?
-metatarsal 1
-1st cuneiform
what is the action of the fibularis (peroneus) longus?
-plantarflexes foot
-everts foot
what is the origin of the gastrocnemius?
-femur
-knee (capsule)
what is the insertion of the gastrocnemius?
-calcaneus
what is the action of the gastrocnemius?
-plantarflexes foot
-flexes leg @ knee joint
what is the origin of the soleus?
-fibula
-tibia
what is the insertion of the soleus?
-calcaneus
what is the action of the soleus?
-plantarflexes foot
what is the origin of the tibialis anterior?
-tibia
what is the insertion of the tibialis anterior?
-metatarsal 1
-1st cuneiform
what is the action of the tibialis anterior
-dorsiflexes foot
-inverts foot
what is the origin of the rectus abdominis?
-pubis
-crest + symphysis
what is the insertion of the rectus abdominis?
-ribs 5-7
-xiphoid process of sternum
what is the action of the rectus abdominis?
-urination, defecation, childbirth, forced exhalation
-flexes vertebrae column
what is the origin of the external abdominal oblique?
-ribs 5-12
what is the insertion of the external abdominal oblique?
-ilium
-iliac crest
what is the action of the external abdominal oblique?
-compresses abdomen
-flexes + rotates vertebral column