O & I Flashcards
(34 cards)
Adductor Pollicis
O: oblique hd: capitate and bases of metacarpals 2&3
transverse hd: 3rd metacarpal (ant surface)
I: medial side of proximal phalanx of thumb
N: ulnar
A: add of thumb and assists with flex at the MCP and CMC joint
Flexor Pollicis Longus
O: ant surface of radius (middle 1/2) and interosseus membrane
I: base of distal phalanx
N: median
A: felx of PIP and MCP jt
Sartorius
O: ASIS
I: Pes anserine
N: femoral
A: flex, abd and lat rot thigh at hip joint and flexes and assists w/ med rot of kn
Abductor digiti minimi
O: pisiform
I: base of prox phalanx of the 5th
N: ulnar
A: abd 5th at MCP jt
abductor digit minimi
O: medial and lateral tubercles of calcaneus
I: lateral side of base of proximal phalanx
N: lateral plantar n
A: abd 5th digit at MTP jt and assists in flex
Gastrocnemius
O: lat hd: lat aspect of lat condyle of femur and jt capsule
med hd: popliteal surface of femur above the medial condyle and jt capsule
I: Achilles tendon (post calcaneus)
N: tibial
A:PF and assists w/ kn Flex
Serratus Anterior
O: ribs 1-8 or 9
I: ant surface of medial border and inf angle of scap
N: long thoracic
A: protracts scap, sup rot of scap, elevates ribs when scap is fixed
Anterior Scalene
O: ant tubercles of TVP C3-C6
I: 1st rib (tubercle and ridge- ant to groove for subclavian v.)
N: ventral rami C4-C6
A: ipsil lat flex and contralat flex, elevates first rib during forced inspiration
Gluteus medius
O: ilium b/w anterior and posterior gluteal line
I: posterolateral surface of greater trochanter
N: superior gluteal
A: abd hip (ant portion- med rot and lat portion- lat rot) (may help with hip extension
Semitendinosus
O: isch tube
I: Pes anserine
N: sciatic (tibial portion)
A: flexs and med rot the leg at the kn jt and extends hip and assists in med rot of thigh at the hip joint
Brachioradialis
O: lateral supracondylar ridge
I: styloid process of radius
N: radial
A: flex elbow and rot forearm into mid-neutral position
Gracilis
O: body and inf ramus of pubis and ramus of the ischium (only small portion)
I: pes anserine
N: obturator
A: abd hip, assists in flex and med rot at kn
Rhomboid Major
O: SP T2-T5
I: vertebral border of scap below spine
N: dorsal scapular
A: retracts, elevates and inf rot of scap
Biceps Femoris
O: long hd: isch tube and sacrotuberous lig
short hd: lateral lip of linea aspera and prox 2/3 of lat supra condylar ridge
I: hd of fib
N: sciatic
-long hd: tibial
-med hd: common peroneal
A: flexes and lat rot leg at kn jt and long hd assists with hip ext and lat rot
Infraspinatus
O: infraspinous fossa
I: middle facet of greater tubercle and jt capsule
N: suprascapular
A: ER & stabilizes GH jt
Spinalis Thoracis
O: SPs T11-L5, sacrum, PSIS, post iliac crest (common origin)
I: SPs T1-T8
N: Dorsal Rami of spinal nerves
A:extension and ipsil lat flex
Coracobrachialis
O: coracoid process
I: medial of middle shaft of humerus
N: musculocutaneous
A: flex and abd of humerus
Latissimus Dorsi
O: SP T7-S5, thoracolumbar fascia, iliac crest, ribs 10-12 and inf angle of scap
I: floor of bicipital groove and medial lip of intertubercular sulcus
N: thoracodorsal
A: extends, adducts and med rots GH and assists in forced inpiration
Splenius Capitis
O: SPs C7-T3 and inf 1/2 of ligamentum nuchae
I: Mastoid process and lat 1/3 of sup nuchal line
N: Dorsal Rami of spinal nerves
A: Ext, Lat flex, ipsil rot (hd and cspine)
Extensor Hallucis Longus
O: middle 1/2 of ant surface of shaft of fibula and interosseus membrane
I: base of distal phalanx of big toe
N: deep peroneal
A: ext big toe at MTP and IP jts, assists w/ DF and INV
Levator Scapulae
O: posterior tubercles of C1-C4
I: vertebral border of scap above the spine (including sup angle)
N: dorsal scapular and cervical C3-4
A: elevates and inf rot of scap- if scap is fixed ext and lat flex of cspine
Sternocleidomastoid
O: sternal hd: ant. surface of manubrium
Clavicular hd: medial 1/3 of clavicle
I: mastoid process and lat 1/3 of sup nuchal line
N: accessory n. and ventral rami C2-C3
A: flex, ipsil lat flex, contralateral rot.
capital extension, elevates sternum and clavicle during forced inspiration
Extensor digitorum
O: CET
I: middle and distal phalanx 2-5
N: radial
A: ext of PIP, MCP and assists in wrist flex
Middle Deltoid
O: lat 1/3 of clavicle, acromion process and spine of scapula
I: deltoid tuberosity
N: axillary
A: abd GH
ant: flx, med rot
mid: abd
post: ext, latrot
