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16 Cards in this Set
- Front
- Back
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what muscles produce hip flexion |
psoas major iliacus rectus femoris tensor fascia latae (abduction, med. rotation) sartorius (abduction, lat rotation) |
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what muscles produce hip extension |
gluteus maximus biceps femoris semitendinosus semimembranosus |
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what muscles produce hip abduction |
gluteus medius gluteus minimus TFL (flexion and medial rotation) sartorius (flexion and lateral rotation) |
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what muscles produce hip adduction? |
Adductor brevis, longus, magnus Gracilis Pectineus |
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what muscles produce knee extension? |
rectus femoris
vastus lateralis, intermedius, medialis |
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what muscles produce knee flexion? |
biceps femoris semitendinosus semimembranosus gastrocnemius plantaris |
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what muscles produce dorsiflexion? |
Extensor Hallucis longus Extensor Digitorum longus Tibialis anterior (inversion also) |
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what muscles produce plantarflexion? |
Gastrocnemius Soleus Plantaris Flexor hallucis longus Flexor digitorum longus Tibialis posterior (inversion) Fibularis longus + brevis (eversion) |
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what muscles produce eversion of the ankle? |
fibularis longus and brevis |
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what muscles produce inversion of the ankle? |
tibialis anterior and posterior |
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what is an agonist? |
An agonist is the prime mover. contracts actively to produce force in the line of pull of the muscle. no secondary movements. |
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what is an antagonist? |
Opposite anatomical direction to agonist muscle. non-contracting - passively lengthening or shortening does not assist or resist movement |
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what is a synergist? |
works at the same time as the agonist and assists in movement production. works to stabilise or counteract unwanted movement - commonly isometric contraction. may have secondary movements. |
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concentric contraction |
shortening of a muscle muscle force exceeds resistance |
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eccentric contraction |
lengthening of a muscle resistance exceeds muscle force (e.g. lowering heavy object) |
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how is the range of muscle length divided? ROML |
it is divided into thirds - inner, mid or outer inner = when muscle is shortest mid = muscle is in mid-length outer = muscle is longest |
