Term
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Definition
Origin: Coccyx, posterior sacrum & Posterior Iliac Crest (Sacroillia ligaments
Insertion: Gluteal tuberosity of femur and IT band
Action: Extends and laterally rotates, abducts hip (lower fibers adduct hip |
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Term
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Definition
Origin: Ischial tuberosity and Linea aspera of femur
Insertion: Head of fibula
Action: Flexes knee/extends hip/tilt pelvis posteriorly, laterally rotates hip |
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Term
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Definition
Origin: ischial tuberosity
Insertion: Proximal medial tibia at pes anserinus tendon
Action: Flexes knee/extends hip/tilt pelvis posteriorly, medially rotates hip |
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Term
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Definition
Origin: Ischial tuberosity
Insertion: Medial condyle of tibia (posterior aspect)
Action: Flexes knee/extends hip/tilt pelvis posteriorly: medially rotates hip |
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Term
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Definition
Origin: Posterior lateral and medial condyles of femur
Insertion: Calcaneous via calcaneal tendon (Achilles)
Action: Plantar flexes the ankle: flexes the knee |
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Term
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Definition
Origin: AIIS
Insertion: Proximal border of patella (via the patellar ligament, into the tibial tuberosity)
Action: Extension of knee; assists flexion of hip |
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Term
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Definition
Origin: Lateral surface of tibia and interosseous membrane
Insertion: 1st metatarsal of foot and 1st cuneiform (medial)
Action: dorsal flexion of ankle and inverts foot |
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Term
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Definition
Origin: generally between metatarsal
Insertion:
Action: |
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Term
| Erector Spinae (sacrospinalis) |
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Definition
Origin: Posterior sacrum, Iliac crest. General Sacral region to ribs, upper vertebrae, Spinous/transverse process thoracic, neck and head (Mastoid)
Insertion: Base of skull (Mastoid)
Action: Bilaterally: extends spine and unilaterally: lateral flexion of spine to same side |
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Term
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Definition
Origin: Occiput, nuchal ligament and spinous processes C7-T-12
Insertion: Spine of scapula, acromion and lateral 3rd of clavicle
Action: Upper: bilaterally extend head/neck. Unilaterally: extend, laterally flex, rotate head/neck to opposite side, rotate scapula up
Middle: Stabilize and retract (adduct)
Lower: Upward rotate and depress scapula |
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Term
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Definition
Origin: Spinous processes of the 7th cervical and 1st thoracic
Insertion: Root (base) of spine of scapula
Action: adducts (retracts), elevates, downwardly rotates scapula (lowers its lateral angle) |
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Term
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Definition
Origin: Spinous processes of the 2nd thru 5th thoracic vertebrae
Insertion: Medial border of scapula below spine of scapula (IA)
Action: Adducts (retracts), elevates, downwardly rotates scapula (lowers its lateral angel) |
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Term
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Definition
Origin: Outer surface of upper 8 or 9 ribs
Insertion: Anterior sur. Medial border for scapula
Action: Abducts (protracts) the scapula stabilizes scapula against chest wall (depress the scapula) |
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Term
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Definition
Origin: Pubic crest, pubic symphysis
Insertion: Xiphoid process & the costal cartilages of the 5th thru 7th ribs
Action: Flexes the vertebral column, compresses the abdominopelvic cavity |
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Term
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Definition
Origin: Xiphoid process
Insertion: Pubis symphysis
Action: insertion point abdominal muscles |
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Term
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Definition
Origin: Medial half of clavicle, the sternum, the costal cartilages of the upper 6 ribs (and the aponeruosis of the external oblique muscle)
Insertion: Crest Greater tubercle of the humerus (Lat. Lip of bicipital or intertubercle groove)
Action: Adduction, horizontal adduction, medial rotation of humerus; flexion of shoulder; extension of flexed shoulder. |
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Term
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Definition
Origin: Lateral 3rd clavicle, acromion and spine of scapula
Insertion: Deltoid tuberosity of the humerous
Action: All: abducts shoulder joint; Posterior: extends, laterally rotates, horizonatally abducts. Anteriorly: Flexes, medially rotates, horizontally adducts. |
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Term
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Definition
Origin: Short: corocoid process & Long head: superglenoid tubercle of scapula
Insertion: Tuberosity of the radius & aponeurosis of biceps brachii
Action: Flexes the elbow; flex shoulder joint, supinates forearm |
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Term
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Definition
Origin: 2 heads (lateral & medial) posterior humerus. Long: infraglenoid tubercle scapula
Insertion: Olecranon process of ulna
Action: all: extend the elbow. Long: extends and adducts shoulder joint |
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Term
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Definition
Origin: Xiphoid process & costal cartilage of last 6 ribs and upper 2 or 3 lumbar vertebrae
Insertion: Central Tendon
Action: Major muscle of inspiration; increases volume of the chest (thoracic cavity) draw central tendon down |
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Term
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Definition
Origin: spinous & transverse processes of atlas/axis
Insertion: Nuchal line of occiput and transverse & transverse process of atlas
Action: rock/tilt back into extension; rotate head to same side |
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Term
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Definition
Origin: Nuchal ligament; spinous
process of C7 thru T3
Insertion: Mastoid process, lateral nuchal line
Action: Bilaterally extends, hyperextends head and neck; unilaterally: rotates head to same side |
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Term
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Definition
Origin: Transverse process of cervical vertebrae
Insertion: 1st two ribs
Action: Bilaterally: flexes head & neck; elevates ribs (inhalation) Unilaterally: Lateral flex neck same side, rotate head/neck to opposite side |
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Term
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Definition
Origin: Transverse processes C1-4
Insertion: Medial border and superior angle of scapula
Action: unilateral: elevates & downward rotates scapula: Laterally flex & rotate head/neck same side. Bilaterally: extends head and neck |
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Term
| Sternocleidomastoid (SCM) |
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Definition
Origin: Sternum & clavicle (medial 3rd)
Insertion: Mastoid process of temporal bone
Action: Bilaterally: Flexes head to chest, assists in inhalation. Unilaterally: rotate head to opposite side: laterally flex head to same side |
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Term
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Definition
Origin: Galea Aponeruotica
Insertion: Skin and muscle of the fore head (brow)
Action: raises the eyebrows; wrinkles the skin of the forehead |
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Term
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Definition
Origin: Zygomatic arch
Insertion: angle and ramus of the mandible
Action: Raises the mandible, closing the jaw |
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