Term
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Definition
| medial 3rd of superior nuchal line, external occipital protuberance, ligamentum nuchae, spinous process of 7th cervical and all thoracic vertebrae. |
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Term
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Definition
| lateral 3rd of clavicle, acromion process and spine of scapula |
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Term
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Definition
| stabilizes, raises, retracts and rotates the scapula. |
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Term
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Definition
| spinoaccessory (C11) and ventral rami of C3, C4 |
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Term
| origin of latissimus dorsi |
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Definition
| indirect attachment through lumbodorsal fascia into spinous process of lower six thoracic and lumbar vertebrae, lower three to four ribs, and iliac crest |
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Term
| insertion latissimus dorsi |
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Definition
| in floor of intertubercular groove of humerus |
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Term
| action of latissimus dorsi |
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Definition
| extends, adducts, and medially rotates the arm; draws the shoulder backward and downward |
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Term
| innervation of latissimus dorsi |
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Definition
| thoracodorsal never (C6-C8) |
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Term
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Definition
| spinous process of 2nd-5th thoracic vertebrae |
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Term
| insertion of rhomboid major |
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Definition
| medial border of scapula between the spine and the inferior angle |
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Term
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Definition
| adducts, retracts, elevates, and rotates the scapula so that the glenoid cavity faces downward and stabilizes the scapula |
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Term
| innervation of rhomboid major |
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Definition
| dorsal scapular never (C5) |
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Term
| origin of levator scapulae |
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Definition
| transverse processes of the 1st four cervical vertebrae |
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Term
| insertion of levator scapulae |
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Definition
| vertebral border of the scapula between the superior angle and the spine |
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Term
| action of levator scapulae |
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Definition
| raises scapula and draws it medially. With the scapula fixed, bends the neck laterally and rotates it to the same side |
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Term
| innervation of levator scapulae |
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Definition
| 3rd and 4th cervical spinal nevers and dorsal scapular nerve (C3-C5) |
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Term
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Definition
anterior portion-superior surface of lateral 3rd of clavicle
middle portion-lateral border of acromion process of scapula
posterior portion-lower border of the crest of the spine of the scapula |
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Term
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Definition
| deltoid tuberosity of the humerus |
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Term
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Definition
anterior portion-flexion and medially rotates the arm
middle portion-abducts the arm
posterior portion-extends and laterally rotates the arm |
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Term
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Definition
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Term
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Definition
| lower 3rd of the posterior surface of the lateral border of the scapula |
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Term
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Definition
| medial lip of the bicipital (intertubercular) groove of the humerus |
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Term
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Definition
| medially rotates and adducts the arm |
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Term
| innervation of teres major |
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Definition
| lower subscapular nerve (C6,C7) |
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Term
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Definition
| upper two thirds of the dorsal surface of the axillary border of the scapula |
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Term
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Definition
| the capsule of the shoulder joint and the inferior part of the greater tubercle of the humerus |
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Term
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Definition
| laterally rotates the arm and draws the humerus toward the glenoid cavity |
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Term
| innervation of teres minor |
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Definition
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Term
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Definition
| supraspinous fossa of the scupla |
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Term
| insertion of suprspinatus |
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Definition
| superior part of the greater tubercle of the humerus and the capsule of the shoulder joint |
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Term
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Definition
| abducts the arm and acts to stabilize the humeral head in the glenoid cavity during movements of the shoulder joint. |
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Term
| innervation of suprapinatus |
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Definition
| suprascapular nerve (C5,C6) |
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Term
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Definition
| subscapular fossa of the scapula |
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Term
| insertion of subscapularis |
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Definition
| lesser tubercle of the humerus and the ventral part of the capsule of the shoulder joint |
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Term
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Definition
| medially rotates and stabilizes the head of the humerus in the glenoid cavity |
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Term
| innervation of subscapularis |
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Definition
| upper and lower subscapular nerves |
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Term
| origin of serratus anterior |
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Definition
| outer surfaces and superior borders of the first 8 or 9 ribs |
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Term
| insertion of serratus anterior |
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Definition
| anterior surface of the medial border of the scapula |
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Term
| action of serratus anterior |
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Definition
| abducts and protracts the scapula, rotates it so that the glenoid cavity faces cranially. It also holds the scapula firmly against the thorax |
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Term
| innervation of serratus anterior |
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Definition
| long thoracic nerve (C5-C7) |
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Term
| origin of serratus posterior inferior |
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Definition
| spinous process of the last two thoracic and upper three lumbar vertebrae (T11-L3) |
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Term
| insertion of serratus posterior inferior |
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Definition
| inferior borders and outer surfaces of lower four ribs just lateral to the angles |
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Term
| action of serratus posterior inferior |
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Definition
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Term
| innervation of serratus posterior inferior |
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Definition
| the 9th through 12th spinal nerves (S9-S12) |
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Term
| origin of splenius capitis |
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Definition
| fascia and spinous processes of 7th cervical and first 4 thoracic vertebrae (C7-T4) |
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Term
| insertion of splenius capitis |
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Definition
| lateral one third of the superior nuchal line and the mastoid process of the temporal bone |
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Term
| action of splenius capitis |
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Definition
| extends and hyperextends the head. Contraction of only one side laterally flexes and rotates the head and neck |
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Term
| innervation of splenius capitis |
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Definition
| dorsal rami of the middle cervical nerves (C4-C8) |
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Term
| origin of iliocostalis cervicis |
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Definition
| angles of the 3rd-6th ribs |
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Term
| insertion of iliocostalis cervicis |
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Definition
| posterior tubercles of the transvers processes of the 4th-7th cervical vertebrae (C4-C7) |
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Term
| action of iliocostalis cervicis |
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Definition
| extension, lateral flexion of the vertebral column |
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Term
| innervation of iliocostalis cervicis |
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Definition
| dorsal rami of the lower cervical and thoracic spinal nerves |
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Term
| origin of iliocostalis thoracis |
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Definition
| angles of lower six ribs medial to the iliocostalis lumborum |
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Term
| insertion of iliocostalis thoracis |
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Definition
| superior border at the angles of the upper six ribs |
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Term
| action of iliocostalis thoracis |
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Definition
| extension, lateral flexion of vertebral column |
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Term
| innervation of iliocostalis thoracis |
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Definition
| dorsal rami of the thoracic spinal nerves |
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Term
| origin of iliocostalis lumborum |
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Definition
| medial and lateral sacral crests and medial part of the iliac crest |
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Term
| insertion of iliocostalis lumborum |
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Definition
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Term
| action of iliocostalis lumborum |
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Definition
| extension, lateral flexion of vertebral column, lateral movement of pelvis |
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Term
| innervation of iliocostalis lumborum |
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Definition
| dorsal rami of the thoracic and lumbar spinal nerves |
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Term
| origin of longissimus cervicis |
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Definition
| transverse processes of upper five thoracic vertebrae |
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Term
| insertion of longissimus cervicis |
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Definition
| posterior tubercles of the transverse processes of the second through sixth cervical vertebrae (C2-C6) |
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Term
| action of longissimus cervicis |
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Definition
| extension and lateral flexion of vertebral column |
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Term
| innervation of longissimus cervicis |
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Definition
| dorsal rami of thoracic spinal nerves |
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Term
| origin of longissimus capitis |
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Definition
| transverse processes of upper five thoracic vertebrae (T1-T5) and articular processes of lower four cervical vertebrae |
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Term
| insertion of longissimus capitis |
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Definition
| posterior aspect of mastoid process of temporal |
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Term
| action of longissimus capitis |
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Definition
| extends and rotates the head |
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Term
| innervation of longissimus capitis |
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Definition
| dorsal rami of middle and lower cervical nerves |
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Term
| origin of longissimus thoracis |
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Definition
| aponeurosis and transverse processes of lumbar and lower thoracic vertebrae |
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Term
| insertion of longissimus thoracis |
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Definition
| transverse processes of all thoracic vertebrae and between tubercles and angles of lower ten ribs |
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Term
| action of longissimus thoracis |
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Definition
| extension and lateral flexion of vertebral column |
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Term
| innervation of longissimus thoracis |
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Definition
| dorsal rami of thoracic and lumbar spinal nerves |
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Term
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Definition
| transverse processes of upper seven thoracic (T1-T7) and articular processes of fourth through seventh cervical vertebrae (C4-C7) |
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Term
| insertion of spinalis capitis |
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Definition
| between superior and inferior nuchal lines of the occipital bone |
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Term
| action of spinalis capitis |
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Definition
| extends the vertebral column |
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Term
| innervation of spinalis capitis |
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Definition
| dorsal rami of lower cervical and thoracic spinal nerves |
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Term
| origin of spinalis cervicis |
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Definition
| spinous process of first and second thoracic (T1,T2) and seventh cervical vertebrae (C7) |
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Term
| insertion of spinalis cervicis |
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Definition
| spinous processes of second and third cervical vertebrae (C2,C3) |
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Term
| action of spinalis cervicis |
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Definition
| extends the vertebral column |
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Term
| innervation of spinalis cervicis |
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Definition
| dorsal rami of lower cervical and thoracic spinal nerves |
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Term
| origin of spinalis thoracis |
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Definition
| spinous processes of the lower two thoracic and upper two lumbar vetebrae (T1-L2) |
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Term
| insertion of spinalis thoracis |
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Definition
| spinous process of upper eight thoracic vertebrae (T1-T8) |
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Term
| action of spinalis thoracis |
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Definition
| extends the vertebral column |
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Term
| innervation of spinalis thoracis |
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Definition
| dorsal rami of thoracic and lumbar spinal nerves |
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Term
| origin of semispinalis capitis |
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Definition
| transverse process of the upper six thoracic (T1-T6) and seventh cervical (C7) and articular processes of the fourth through six cervical vertebrae (C4-C6) |
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Term
| insertion of semispinalis capitis |
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Definition
| between the superior and inferior nuchal lines of the occipital bone |
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Term
| action of semispinalis capitis |
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Definition
| extension of the head and rotation to the opposite side |
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Term
| innervation of semispinalis capitis |
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Definition
| dorsal rami of the first six cervical spinal nerves (C1-C6) |
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Term
| origin of semispinalis cervicis |
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Definition
| transverse processes of upper six thoracic (T1-T6) and articular processes of lower four cervical vertebrae (C4-C7) |
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Term
| insertion of semispinalis cervicis |
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Definition
| spinous process of second through fifth cervical vertebrae (C2-C5) |
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Term
| action of semispinalis cervicis |
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Definition
| extension and rotation of vertebral column |
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Term
| innervation of semispinalis cervicis |
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Definition
| dorsal rami of lower three cervical spinal nerves (C4-C7) |
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Term
| origin of semispinalis thoracis |
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Definition
| transverse processes of lower six thoracic vertebrae (T7-T12) |
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Term
| insertion of semispinalis thoracis |
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Definition
| spinous processes of the lower two cervical and upper four thoracic vertebrae (T1-T4) |
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Term
| action of semispinalis thoracis |
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Definition
| extension and rotation of vertebral column |
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Term
| innervation of semispinalis thoracis |
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Definition
| dorsal rami of upper six thoracic spinal nerves (T1-T6) |
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Term
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Definition
| articular processes of the last four cervical, transverse processes of all thoracic, and mammillary processes of lumbar vertebrae, the posterior superior iliac spine, posterior sacroiliac ligaments, and dorsal surface of sacrum adjacent to sacral spinous processes |
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Term
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Definition
| spinous process of the vertebra above the vertebra of origin |
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Term
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Definition
| extend and rotate vertebral column |
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Term
| innervation of multifidus |
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Definition
| dorsal rami of spinal nerves |
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Term
|
Definition
| transverse processes of each vertebrae |
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Term
|
Definition
short head: base of spinous process of next vertebrae above
long head: base of spinous process of second vertebra above |
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Term
|
Definition
| extend and rotate the vertebral column |
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Term
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Definition
| dorsal rami of spinal nerves |
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Term
| origin of obliquus capitis superior |
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Definition
| superior surface of transverse process of atlas |
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Term
| insertion of obliquus capitis superior |
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Definition
| occipital bone between inferior and superior nuchal lines |
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Term
| action of obliquus capitis superior |
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Definition
| bends the head backward and laterally to the same side |
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Term
| innervation of obliquus capitis superior |
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Definition
| dorsal ramus of the first cervical (suboccipital) nerve (C1) |
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Term
| origin of rectus capitis posterior minor |
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Definition
| posterior tubercle of atlas |
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Term
| insertion of rectus capitis posterior minor |
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Definition
| median portion of inferior nuchal line of occipital bone |
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Term
| action of rectus capitis posterior minor |
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Definition
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Term
| innervation of rectus capitis posterior minor |
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Definition
| dorsal ramus of first cervical (suboccipital) nerve (C1) |
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Term
| origin of gluteus maximus |
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Definition
| posterior gluteal line of ilium, adjacent posterior surface of sacrum and coccyx, sacrotuberous ligament and aponeurosis of erector spinae muscles |
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Term
| insertion of gluteus maximus |
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Definition
| iliotibial tract of fascia lata and gluteal tuberosity of femur |
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Term
| action of gluteus maximus |
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Definition
upper part-extends and laterally rotates thigh
lower part-extends, laterally rotates thigh and assists in raising the trunk from a flexed position. Also assists in adduction of the hip |
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Term
| innervation of gluteus maximus |
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Definition
| inferior gluteal nerve (L5-S2) |
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Term
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Definition
| pelvic surface of the sacrum between the 1st through 4th sacral foramina and sacrotuberous ligament |
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Term
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Definition
| superior border of the greater trochanter of the femur |
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Term
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Definition
| laterally rotates thigh at the hip joint and abducts thigh |
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Term
| innervation of piriformis |
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Definition
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Term
|
Definition
| between anterior and posterior gluteal lines on lateral surface of ilium |
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Term
| insertion of gluteus medius |
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Definition
| lateral surface of the greater trochanter of the femur |
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Term
|
Definition
| abducts the hip joint and medially rotates the thigh |
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Term
| innervation of gluteus medius |
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Definition
| superior gluteal nerve (L5,S1) |
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