Lab Practical Exam #1 Flashcards by Leanna Robinson

Trapezius- O, I, A

O: Spinous processes of C1-T12, occipital bone
I: Spine of scapula, acromion, lateral clavicle
trapezius
A: Upper Traps: elevation & rotation of scapula Lower Traps: depression & rotation of scapula Medial: adduction (retraction of scapula) Extension of head/neck

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rhomboid major- O, I, A

O: Spinous processes of T2-T5
rhomboid
trapezius
I: Medial (vertebral) border of scapula
major
A: main fixator of scapula, adduction of scapula

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rhomboid minor- O, I, A

O: Spinous processes of C7 & T1
trapezius
I: Vertebral (medial) border of rhomboid
scapula
major
A: main fixator of scapula, adduction

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levator scapulae- O, I, A

O: Transverse processes of C1 -C4
I: Vertebral (medial) border of scapula
A: Elevates scapula

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pectoralis minor- O, I, A

O: Anterior surface of ribs 3-5
I: Coracoid process
A: Abducts (protracts) scapula

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serratus anterior- O, I, A

O: Ribs
I: Scapula
A: Abducts (protracts) scapula

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pectoralis major- O, I, A

O: medial clavicle &
sternum
I: humerus
A: flexion, adduction & medial rotation of humerus (shoulder)

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latissimus dorsi- O, I, A

O: spinous processes of T6 – L5, sacrum, iliac crest
I: anterior humerus
A: extension, adduction & medial rotation of humerus

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coracobrachialis- O, I, A

O: coracoid process
I: humerus
A: flexion of humerus (shoulder)

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supraspinatus- O, I, A

O: supraspinous fossa
I: humerus (greater tubercle)
A: abduction of humerus (shoulder)

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infraspinatus- O, I, A

O: infraspinous fossa
supraspinatus
I: humerus (greater tubercle)
A: lateral rotation & adduction of
humerus (shoulder)

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teres minor- O, I, A

O: lateral border of scapula
I: humerus (greater tubercle)
A: lateral rotation & adduction of
humerus (shoulder)
infraspinatus

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teres major- O, I, A

O: inferior angle (scapula)
I: humerus
A: medial rotation, extension & adduction
of humerus (shoulder)

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subscapularis- O, I, A

O: subscapular fossa
I: humerus (lesser tubercle)
subscapularis
A: medial rotation of humerus
(shoulder)

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deltoid (anterior, middle, posterior)- O, I, A

O: lateral clavicle, acromion & spine of scapula
I: deltoid tuberosity
A: Abduction of humerus (shoulder) (middle)
Anterior: flexion & medial rotation of shoulder
Posterior: extension & lateral rotation of shoulder

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triceps brachii (long, medial, lateral heads)- O, I, A

O: long head: scapula
medial head: medial humerus
lateral head: lateral humerus
I: olecranon process
A: extension of elbow; long head also extends shoulder

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biceps brachii (long and short heads)- O, I, A

O: long head: scapula (supraglenoid
tubercle)
short head: coracoid process
I: radial tuberosity
A: flexion of elbow, supination
flexion of shoulder
long head, biceps brachii

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brachialis- O, I, A

O: anterior humerus
I: ulna
A: flexion of elbow
“workhorse”

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brachioradialis- O, I, A

O: anterior humerus
I: distal radius
A: flexion of elbow

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pronator teres- A

pronates wrist

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flexor carpi radialis- A

flexes wrist

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flexor carpi ulnaris- A

flexion and adduction of wrist

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palmaris longus- A

flexes wrist

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flexor digitorum superficialis- A

flexes wrist and fingers

extensor digitorum- A

extends wrist and fingers

extensor carpi radialis longus- A

extends and abducts wrist

extensor carpi radialis brevis- A

extends and abducts wrist

extensor carpi ulnaris- A

extends wrist

iliopsoas muscle group is known as the

hip flexors

psoas major and iliacus- A

flexion of hip

gluteus maximus- A

extension and lateral rotation of hip

gluteus medius and gluteus minimus- A

Abduction & medial rotation of hip

tensor fascia latae (TFL)- O, I, A

O: iliac crest & ASIS I: IT band (iliotibial tract) A – tenses IT band to stabilize knee & abducts hip

piriformis- O, I, A

O: sacrum I: femur (greater trochanter) A – lateral rotation, extension & abduction of hip

superior and inferior gemellus- A

lateral rotation of hip

obturator internus- A

lateral rotation of hip

quadratus femoris- A

lateral rotation of hip

pectineus- O, I, A

O: pubis I: femur (proximal) A – flexion, adduction & medial rotation of hip

adductor magnus- O, I, A

O: pubis & ischium I: linea aspera & adductor tubercle A – adduction of hip

adductor longus- O, I, A

O: pubis I: femur (linea aspera) A – adduction of hip

adductor brevis- O, I, A

O: pubis I: femur (linea aspera) A – adduction of hip

gracilis- O, I, A

O: pubis I: tibia A – flexion of knee, adduction of hip

sartorius- O, I, A

O: A.S.I.S. I: medial surface of tibia A – flexion & lateral rotation of hip, flexion of knee

quadriceps femoris muscles group

rectus femoris, vastus lateralis, vastus medialis, vastus intermedius

insertion of rectus femoris, vastus lateralis, vastus medialis, vastus intermedius

All insert on tibial tuberosity via quadriceps (patellar) tendon & ligament

rectus femoris- O, I, A

O: A.l.I.S. I: tibial tuberosity via patellar tendon/ligament A – flexion of hip, extension of knee

vastus lateralis- O, I, A

O: lateral femur I: tibial tuberosity via patellar tendon/ligament A – extension of knee

vastus medialis- O, I, A

O: medial femur I: tibial tuberosity via patellar tendon/ligament A – extension of knee

vastus intermedius- O, I, A

O: femur I: tibial tuberosity via patellar tendon/ligament A – extension of knee

posterior thigh: hamstring muscle group

biceps femoris, semitendinosus, semimembranosus

biceps femoris- O, I, A

O: long head: ischial tuberosity short head: femur I: lateral surface of tibia, fibula A –flexion of knee, long head: extension of hip

semitendinosus and semimembranosus- O, I, A

O: ischial tuberosity I: tibia A –flexion of knee, extension of hip semimembranosus

tibialis anterior- A

dorsiflexion and inversion of foot (ankle)

tibialis posterior- A

A –inverts & plantar flexes foot

peroneus longus and peroneus brevis- A

A –plantar flexion & eversion of foot (ankle)

gastrocnemius- O, I, A

O: medial & lateral heads: femur medial & lateral condyles I: Achille’s (calcaneal) tendon to calcaneus A – flexion of knee & plantar flexion

soleus- O, I, A

O: fibula & tibia I: Achille’s (calcaneal) tendon to calcaneus A – plantar flexion

extensor digitorum longus- A

extension of toes