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Muscles 3rd Quiz Liz

Liz's 3rd Muscle Quiz (O,I,A)

QuestionAnswer
Antagonist Muscle capable of performing the OPPOSITE action to that of the agonist (& its synergists)Passive Muscle
Isotonic Contraction ('same tension') length of muscle changes during contraction.
Concentric Contraction muscle SHORTENS during contraction (insertion moves toward origin)
Eccentric Contraction muscle LENGTHENS during concentration (origin & insertion move further apart)
Slack Passively do the muscle action.(You do it for them)
Synergist A muscle that ASSIST the agonist in a given action at a giving joint; Usually weaker than the agonist Active Muscle
Isometric Contraction ('same length') muscle length does NOT change while muscle contracts. (there is tension <work>, but length stays the same)
Agonist or Prime Movers The muscle that is STRONGER in a given action at a given joint Active Muscle (strongest muscles)
Stretch Perform actions that are opposite the muscle's action.
Fixator These muscles STABILIZE the joint during movement.
Flexors Muscles that cross the long axis of a joint anteriorly (except knee, which crosses the joint posteriorly) will most likely flex that joint.
Extensors Muscles that cross a joint posteriorly (except knee, which crosses the joint anteriorly)
Abductors muscles that cross a joint laterally
Adductors muscles that cross a joint medially
Rotators muscles that cross a joint obliquely
Soleus Origin soleal line and posterior, proximal fibula
Soleus Insertion achilles tendon to the calcaneus
Soleus Action PM: planterflexion
Flexor Digitorium Longus (Dick) Origin posterior tibia (just below soleal line)
Flexor Digitorium Longus (Dick) Insertion distal phalanges of digits 2-5, plantar surface(4 lateral toes)
Flexor Digitorium Longus (Dick) Action flexion of toes 2-5, slight inversion, SYN: planterflexion
Tibialis Posterior (Tom) Origin posterior tibia, fibula, interosseous membrane (inferior to soleal line)
Tibialis Posterior (Tom) Insertion navicular and adjacent tarsals and metatarsals - plantar surface (no toes)
Tibialis Posterior (Tom) Action PM: inversion SYN: plantarflexion
Flexor Hallucis Longus (Harry) Origen posterior fibula
Flexor Hallucis Longus (Harry) Insertion distal phalanx of big toe - plantar surface
Flexor Hallucis Longus (Harry) Action flex IP,MP of big toeSYN: plantarflexion, slight inversion
Tibialis Anterior Origin lateral shaft of tibia
Tibialis Anterior Insertion medial cuneiform, base of #1 metatarsal - plantar surface
Tibialis Anterior Action PM: doriflexionPM: inversion
Externsor Hallucis Longus Origin anterior fibula and interosseous membrane- mid-shaft
Externsor Hallucis Longus Insertion distal phalanx of big toe (dorsal surface)
Externsor Hallucis Longus Action extension big toeSYN: doriflexion, slight inversion
Extensor Digitorum Longus Origin anterior shaft of fibula, lateral tibial condyle
Extensor Digitorum Longus Insertion distal phalanges of digits 2-5
Extensor Digitorum Longus Action extension digits 2-5SYN: doriflexion, slight inversion
Pernoeous (Fibularis) Tertius Origin distal, anterior fibula
Pernoeous (Fibularis) Tertius Inserttion dosal surface of base of 5th metatarsal
Pernoeous (Fibularis) Tertius Action PM: eversion SYN: dorsiflexion
Pernoeous (Fibularis) Longus Origin upper half of the lateral fibula
Pernoeous (Fibularis) Longus Insertion medial cuneiform, base of 1st metatarsal- plantar surface
Pernoeous (Fibularis) Longus Action PM: eversion SYN: plantarflexion
Pernoeous (Fibularis) Brevis Origin distal half of lateral fibula
Pernoeous (Fibularis) Brevis Insertion base of 5th metarsal, lateral surface
Pernoeous (Fibularis) Brevis Action PM: eversion SYN: plantarflexion
Intrinsic Muscles of foot: Location deep plantar surface of foot
Intrinsic Lumbricals flexion of the MP jts and extension of the PIPs and DIPs
Interosseous Muscles Located in between the toes
Dorsal Introssei abduct digits (DAB)
Plantar Introssei adduct digits (PAD)
Created by: 1636851386
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