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41 Cards in this Set
- Front
- Back
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Origin of trapezius |
Spinous process of c1-t12 |
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Insertions of trapezius |
Spine of scapula Acromion Lateral clavicle |
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Action of trapezius |
(Lower fibers) depress scapula (Mid fibers) addiction scapula (Upper fibers) elevate scapula |
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Origin of latissimus dorsi |
Spines if sacral, Lumbar Lower thoracic Iliac crest Lower 4 ribs |
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Insertion of latissimus dorsi |
Intertubercular groove of the humerus |
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Action of latissimus dorsi |
Extends, adducts, and rotates humerus medially, retracts shoulder. |
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Origin of lavator scapulae |
Posterior tubercles of transverse process of c1-c4 |
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Insertion of levator scapulae |
Superior part of vertebral border of scapula |
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Action of levator scapulae |
Elevated scapula Tilts glenoid cavity inferiorly by rotating scapula |
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Origin of rhomboid minor |
Inferior portion of nuchal ligament Spinous process of c7-t1 |
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Insertion of rhomboid minor |
Vertebral border of scapula near or at the level of the spine |
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Action of rhomboid minor |
Adducts scapula and rotates it to depress glenoid cavity. |
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Origin of rhomboid major |
Spinous process of t2-t5 |
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Insertion of rhomboid major |
Inferior aspect of vertebral border of the scapula to the inferior angle of the scapula. |
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Action of rhomboid major |
Adducts scapula Rotates it to depress glenoid cavity |
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Origin of erector spinae |
Posterior part of ilium |
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Insertion of erector spinae |
T12-C2 and posterior skull |
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Action of erector spinae |
Contraction of one side flexes the vertebral column laterally Contraction of both sides extends the vertebral column. |
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Primary tissue type that makes up most skeletal muscles |
Skeletal muscle |
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Characteristics of muscle tissue |
Excitability Contractability Elasticity Extensibility |
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Another term for skeletal muscle cell |
Muscle fibers |
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Five functions of muscle tissue |
Body movement Maintain of posture Temperature regulation Storage and regulation of materials Support |
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Expansion of dense irregular connective tissue that binds together muscles, forms sheaths to distribute nerves, blood vessels, and lo lymphatic vessels, and to full spaces between muscles |
Deep fascia |
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Tissue composed of areolar connective tissue and adipose . Separates muscle from the skin |
Superficial fascia |
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Cord like structures that attach muscle to bone or skin or something |
Tendons |
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Sheets of tissue that connect muscle to bone and stuff |
Aponeuroses |
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Bands of connective tissue that hold tendons in place |
Retinacula (retinaculum-singular) |
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Name of muscle attachment point that usually remains stationary |
Origin |
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Part of muscle attachment that usually moves when muscle contracts |
Insertion |
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Enlarged middle part of muscle |
Belly |
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Muscle producing a particular movement |
Agonist, or prime mover |
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Muscle whose action opposes that of another muscle |
Antagonist |
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Muscle that assists prime movers in action |
Synergist |
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Six ways muscles are named |
Muscle action Body regions Attachments Orientation Shape and size Heads/tendons of origin |
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Muscles that have both origin and insertion on axial skeleton |
Axial muscles |
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Three muscles of erector spinae |
I.L.S (I love spines) Iliocostalis Longissus Spinalis
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Muscle that holds the lumber vertebrae erect |
Quadratics lumborum |
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Origin of quadratics lumborum |
Iliac crest |
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Origin of quadratics lumborum |
Iliac crest |
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Insertion of quadratics lumborum |
Transverse process of lumber vertebrae and 12th rib |
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Action of quadratics lumborum |
Contraction of one side produces lateral flexion, and contraction of both produces extension of spinal column |
