Term
| Obliquus Capitis Superior |
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Definition
Origin--Transverse process of atlas
Insertion--Inferior nuchal line of occipital bone
Action--rotates head laterally, extends head
Innervation--suboccipital nerve |
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Term
| Obliquus Capitis Inferior |
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Definition
Origin-Spine of axis
Insertion-Transverse process of atlas
Action-Rotates atlas, skull around dens, Extends head (bilateral)
Innervation-Suboccipital n. |
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Term
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Definition
Origin-Spine of axis
Insertion-Inferior nuchal line of occ bone
Action-Rotates head laterally Extends head (bilateral)
Innervation-Suboccipital n. |
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Term
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Definition
Origin-Posterior tubercle of atlas
Insertion-Below inf nuchal line
Action-Flexes head laterally Extends head (bilateral)
Innervation-Suboccipital n. |
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Term
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Definition
Origin-Manubrium, medial 1/3 of
Clavicle
Insertion-Mastoid process and lateral half
Of superior nuchal line
Action-Draws head to shoulder, turns face to
Opposite side; flexes neck (bilateral)
Innervation-Spinal accessory n, APR of C3,C4 |
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Term
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Definition
Origin-Spines of all C & T vert, Ligamentum nuchae, inion
And superior nuchal line
Insertion-Spine and acromion of scapula
Lateral third of clavicle
Action-Head: extends head, tilts chin to side
Limb: rotates, adducts scapula, elevates
Scapula and clavicle
Innervation-Spinal accessory APR of C3, C4 |
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Term
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Definition
Origin-Lower part of lig. nuchae lower cervical spines
Insertion-Mastoid process Superior nuchal line
Action-Flexes head laterally, rotates head Ipsilaterally; extends head bilaterally
Innervation-Segmented PPR of cervical spinal n. |
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Term
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Definition
Origin-Transverse processes of C1-4
Insertion-Superior portion of vertebral Border of scapula
Action-Elevates and rotates scapula
Innervation-Dorsal scapular nerve |
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Term
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Definition
Origin-Spines of T6-T12, os coxae, Iliac crest, lumbodorsal fascia Lower 3-4 ribs
Insertion-Humerus, floor of intertubercular sulcus
Action-Adducts, extends arm; rotates arm medially
Innervation-Thoracodorsal nerve |
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Term
| Rhomboids (major and minor) |
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Definition
Origin-Spinous processes C7-T5
Insertion-Vertebral border of scapula
Action-Retracts and rotates scapula medially (glenoid
fossa down)
Innervation-Dorsal scapular nerve |
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Term
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Definition
Origin-Inf lateral 1/3 of clavicle, Acromion, spine of scapula
Insertion-Deltoid tuberosity of humerus
Action-Arm: abduction, flexion, Medial and lateral rotation, extension
Innervation-Axillary |
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Term
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Definition
Origin-Inferior angle of scapula
Insertion-Humerus: intertubercular sulcus
Action-Extends, adducts, medially rotates arm
Innervation-Lower subscapular |
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Term
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Definition
Origin-Supraspinous fossa - scapula
Insertion-Greater tubercle of humerus
Action-Abducts arm, stabilizes shoulder joint
Innervation-Suprascapular |
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Term
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Definition
Origin-Infraspinous fossa – scapula
Insertion-Greater tubercle of humerus
Action-Rotates arm laterally, adduction, Stabilizes shoulder joint
Innervation-Suprascapular |
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Term
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Definition
Origin-Inferior lateral border of scapula
Insertion-Greater tubercle of humerus
Action-Rotates arm laterally, extends, adducts
Arm, stabilizes arm at shoulder
Innervation-Axillary |
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Term
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Definition
Origin-Subscapular fossa – scapula
Insertion-Lesser tubercle of humerus
Action-Rotates arm medially stabilizes shoulder joint
Innervation-Upper and lower subscapular |
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Term
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Definition
Origin-Medial 1/3 – clavicle, body of sternum, costal cartilage of ribs 1-6
Insertion-Greater tubercle of humerus
Action-Flexes, adducts arm, rotates arm medially, elevates ribs in forced Inspiration
Innervation-Lateral and medial pectoral nerves |
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Term
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Definition
Origin-Anterior surfaces of ribs 3-5
Insertion-Coracoid process of scapula
Action-Protracts, depresses and rotates scapula laterally, elevates ribs during insp.
Innervation-Medial pectoral nerve |
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Term
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Definition
Origin-Rib 1 and its costal cartilage
Insertion-Inferior aspect of clavicle
Action-Depresses and protracts scapula
Innervation-Nerve to subclavius |
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Term
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Definition
Origin-Anterosuperior surfaces of ribs 1-9
Insertion-Anterior aspect of vertebral border of scapula
Action-Protracts, rotates scapula medially elevates ribs during forced inspiration
Innervation-Long thoracic nerve |
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Term
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Definition
Origin-Coracoid process(short), supraglenoid tubercle (long)
Insertion- Radial tuberosity (both)
Action-Flexor of forearm at elbow, supinator of forearm, flexor of arm at shoulder
Innervation- musculocutaneous |
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Term
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Definition
Origin- Coracoid process
Insertion- medial mid shaft of humerus
Action- Flexes arm, adducts arm
Innervation-Musculocutaneous |
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Term
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Definition
Origin- anterior distal aspect of humerus
Insertion- Coronoid process
Action- flexor of forearm at elbow
Innervation- musculocutaneous |
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Term
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Definition
Origin-infraglenoid tubercle
Insertion- olecrenon
Action- Extends forearm at elbow
Innervation- radial n. |
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Term
| Triceps brachii (lateral) |
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Definition
Origin- Posterolateral surface of humerus
Insertion- Olecrenon
Action- Extends forearm
Innervation- radial |
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Term
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Definition
Origin-Posterior surface of humerus below radial groove
Insertion- Olecrenon
Action- Extends forearm
Innervation- Radial |
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Term
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Definition
Origin-lateral epicondyle of humerus
Insertion- Olecrenon
Action- extends and pronates forearm
Innervation- Radial |
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Term
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Definition
Origin- medial epicondyle of humerus
Insertion- palmar aponeurosis of hand, flexor retinaculum
Action- flexes hand at wrist
Innervation- median |
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Term
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Definition
Origin- median epicondyle of humerus
Insertion- 2nd and 3rd metacarpals
Actions- Flexes and abducts hand at wrist
Innveration- Median |
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Term
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Definition
Origin- medial epicondyle of humerus
Insertion- 5th metacarpal, pisiform, hamate
Action- Flexes and adducts hand at wrist
Innervation- Ulnar |
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Term
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Definition
Origin- medial epicondyle of humerus, coronoid process
Insertion- lateral aspect of midshaft of radius
Action- pronates forearm
Innervation- median |
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Term
| Flexor digitorum superficialis |
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Definition
Origin- medial epicondyle of humerus, upper anterior shaft of radius
Insertion- palmar aspects of all phalanges except thumb
Action- Flexes middle phalanges at proximal interphalangeal joints
Innervation- median |
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Term
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Definition
Origin- coronoid process, interosseous membrane, anterior shaft of radius
Insertion- Distal phalanx of thumb, palmar side of base
Action- Flexes thumb
Innervation- median |
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Term
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Definition
Origin- anterior distal surface of shaft of ulna
Insertion- distal anterior aspect of radius
Action- pronates forearm and provides power when pronating against resistance
Innervation- median |
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Term
| Flexor digitorum profundus |
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Definition
Origin- medial and anterior aspect and adjacent interosseous membrane of ulna
Insertion- distal phalanges of all digits except thumb: bases
Action- Flexes distal phalanges at distal interphalangeal joints
Innervation- Ulnar and median |
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Term
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Definition
Origin- lateral epicondyle of humerus
Insertion- styloid process of radius
Action- Flexes forearm at elbow
Innervation- Radial |
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Term
| Extensor carpi radialis longus |
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Definition
Origin-lateral supracondylar ridge and lateral epicondyle of humerus
Insertion- 2nd metacarpal
Action-Extends and abducts hand at wrist
Innervation- Radial |
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Term
| Extensor carpi radialis brevis |
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Definition
Origin- lateral epicondyle of humerus
Insertion- 3rd metacarpal
Action- Extends and abducts hand at wrist
Innervation- radial |
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Term
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Definition
Origin- lateral epicondyle of humerus
Insertion- 5th metacarpal
Action- Extends and adducts had at wrist
Innervation- radial |
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Term
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Definition
Origin- lateral epicondyle of humerus
Insertion- lateral and distal aspects of phalanges
Action- Extends the fingers, aids in extending wrist
Innervation- radial |
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Term
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Definition
Origin- lateral epicondyle of humerus
Insertion- proximal phalanx of 5th finger
Action- Extends pinky finger
Innervation- radial |
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Term
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Definition
Origin-lateral epicondyle of humerus, proximal aspect of ulna below the radial notch
Insertion- lateral aspect of proximal end of radius
Action- supinates forearm and turns palm forward in anatomical position, or up as in accepting change when should and/or elbow are flexed
Innervation- radial |
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Term
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Definition
Origin- middle third posterior aspect of ulna and radius, interosseous membrane
Insertion- 1st metacarpal (radial side)
Action-Abducts thumb and wrist
Innervation- radial |
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Term
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Definition
Origin- middle third of posterior aspect of ulna
Insertion- distal phalanx of thumb
Action-Extends distal phalanx of thumb
Innervation- radial |
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Term
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Definition
Origin- Posterior aspect of radius, interosseous membrane
Insertion- Proximal phalanx of thumb
Action- extends proximal phalanx of thumb
Innervation- radial |
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Term
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Definition
Origin-Posterior aspect of ulna, interosseous membrane
Insertion- Proximal phalanx of index finger: dorsal aspect
Action- extends index finger
Innervation- radial |
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Term
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Definition
Origin- flexor retinaculum, scaphoid, and trapezium
Insertion- proximal phalanx of thumb
Action- abducts thumb at right angles to palm through movement at metacarpophalangeal and carpometacarpal joints
Innervation- median |
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Term
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Definition
Origin- flexor rentinaculum, trapezium
Insertion- proximal phalanx of thumb
Action- Flexes proximal phalanx of thumb
Innervation- median and ulnar |
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Term
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Definition
Origin- flexor rentinaculum, trapezium
Insertion- 1st metacarpal
Action- Draws tip of thumb to each tip of other digits
Innervation- median |
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Term
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Definition
Origin- pisiform, tendon of flexor carpi ulnaris
Insertion-Proximal phalanx of 5th digit
Action- abducts 5th digit
Innervation- ulnar |
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Term
| Flexor digiti minimi brevis |
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Definition
Origin-Flexor rentinaculum, hook of hamate
Insertion- Proximal phalanx of 5th digit
Action- Flexes 5th digit
Innervation- ulnar |
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Term
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Definition
Origin- Flexor retinaculum, hook of hamate
Insertion- 5th metacarpal (ulnar aspect)
Action- draws 5th metacarpal and little finger toward thumb
Innervation- ulnar |
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Term
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Definition
Origin- flexor retinaculum, medial aspect
Insertion- skin: ulnar side of palm
Action- creases of skin of palm on ulnar side
Innervation- Ulnar |
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Term
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Definition
Origin- transverse head of 3rd metacarpal, oblique head, capitate, 2nd and 3rd metacarpals
Insertion- proximal phalanx of thumb: ulnar aspect of base
Action- adducts thumb, active in oppostion
Innervation- ulnar |
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Term
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Definition
Origin-flexor digitorum profundus tendons
1)radial aspect of index and middle finger
2)radial aspect of index and middle finger
3)adjacent sides of tendons of middle and ring fingers
4)adjacent sides of tendons of middle and ring fingers
Insertion- distal phalanges of the four fingers: bases and joins the extensor expansions of the extensor digitorum muscle
Action- flex fingers at metacarpophalangeal joints, extend fingers at interphalangeal joints
Innervation- median nerve to two lateral muscles, ulnar nerve to two medial muscles |
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Term
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Definition
Origin- metacarpals: each muscle arises as two heads from adjacent or facing sides and dorsal aspects
Insertion-
1) proximal phalanx of index finger (radial side)
2) proximal phalanx of middle finger (radial side)
3) proximal phalanx of ring finger (ulnar side)
4) proximal phalanx of pinky finger (ulnar side)
Action- abducts fingers from median plane
Innervation- ulnar |
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Term
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Definition
Origin-
1) 2nd metacarpal (ulnar side)
2) 4th metacarpal (radial side)
3) 5th metacarpal (radial side)
Insertion-
1) Ulnar side of proximal phalanx of index finger
2) radial side of proximal phalanx of ring finger
3) radial side of proximal phalanx of pinky finger
Action- adduct digits toward median plane of hand
Innervation- Ulnar |
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