Week 9: OIA Lower extremity

Question 1

Origin of Adductor Magnus

Answer 1

Inferior Ramus of Pubis, ramus of ischium, ischial tuberosity

Question 2

Insertion of Adductor Magnus

Answer 2

Medial lip of aspera and adductor tubercle

Question 3

Action of Adductor Magnus

Answer 3

Add, med rot of hip. Assist in hip flex
Post: extension of the hip

FADIR

Question 4

Origin of adductor longus

Answer 4

pubic tubercle

Question 5

Insertion of adductor longus

Answer 5

Medial lip of linea aspera

Question 6

Action of adductor longus

Answer 6

Add, med rot hip. Assist in hip flexion

Question 7

Origin of adductor brevis

Answer 7

Inferior ramus of pubis

Question 8

Insertion of adductor brevis

Answer 8

Pectineal line and medial lip of linea aspera

Question 9

Action of adductor brevis

Answer 9

Add, med rot of hip. Assist in hip flexion

Question 10

Origin of Pectineus

Answer 10

Superior ramus of pubis

Question 11

Insertion of pectineus

Answer 11

Pectineal line of femur

Pectineus = Pectineal

Question 12

Action of pectineus

Answer 12

Add, med rot of hip. Assist in hip flexion

Question 13

Origin of gracilis

Answer 13

Inferior ramus of pubis

Question 14

Insertion of Gracilis

Answer 14

Prox, med shaft of tibia and pes anserine

PMT at Pes anterine

Question 15

Action of gracilis

Answer 15

Add, med rot of hip, flex knee, med rot flexed knee

Question 16

Origin of gastrocnemius

Answer 16

Post condyles of femur

Back medial and lateral condyles

Question 17

Insertion of gastrocnemius

Answer 17

Calcaneus via calcaneal tendon

Question 18

Action of gastrocnemius

Answer 18

Flexion of knee. Planter flexion of ankle

Two flexes of knee and ankle

Question 19

Origin of soleus

Answer 19

Soleal line and post tibia, post head fibula

Question 20

Insertion of soleus

Answer 20

Calcaneus via calcaneal tendon

Question 21

Action of soleus

Answer 21

Plantar flexion of ankle

Question 22

Origin of plantaris

Answer 22

lat supracondylar line of femur

Question 23

Insertion of plantaris

Answer 23

calcaneus via calcaneal tendon

Question 24

Action of plantaris

Answer 24

Assist in plantar flexion and knee flexion

Question 25

Origin of popliteus

Answer 25

Lat condyle femur

Question 26

Insertion of popliteus

Answer 26

Proximal and posterior aspect of tibia ## Footnote PPT

Question 27

Action of popliteus

Answer 27

flexion of knee and med rot of flexed knee ## Footnote FMR = Fuck me

Question 28

Origin of fibularis longus

Answer 28

Head and proximal 2/3 lat fibula

Question 29

Insertion of fibularis longus

Answer 29

Base of 1st met and medial cuneiform

Question 30

Action of fibularis longus

Answer 30

Evert foot, assist plantar flexion

Question 31

Origin of fibularis brevis

Answer 31

Distal 2/3 lat fibula

Question 32

Insertion of fibularis brevis

Answer 32

Tuberosity of 5th

Question 33

Action of fibularis brevis

Answer 33

Evert foot, assist in plantar flexion

Question 34

Origin of Fibularis tertius

Answer 34

Distal 1/3 lat fibula

Question 35

Insertion of Fibularis tertius

Answer 35

Tuberosity of 5th

Question 36

Action of Fibularis Tertius

Answer 36

Evert foot, assist plantar flexion

Question 37

Origin of Tibialis Anterior

Answer 37

Lat condyle, prox lat surface of tibia, interosseous membrane ## Footnote LPT

Question 38

Insertion of Tibialis Anterior

Answer 38

Med cuniform, base of 1st metacarpal

Question 39

Action of Tibialis Anterior

Answer 39

Invert foot and dorsiflex the ankle

Question 40

Origin of Extensor Digitorum Longus

Answer 40

Lat condyle tibia, proximal and anterior fibula, interosseous membrane ## Footnote LT and FAP and IM Longus = lateral condyle

Question 41

Insertion of extensor digitorum longus

Answer 41

Medial and distal phalange 2-5th toes ## Footnote MD and 2-5

Question 42

Action of extensor digitorum longus

Answer 42

Extend toes 2-5 dorsiflexion ankle, evert foot

Question 43

Origin of extensor hallucis longus

Answer 43

Middle and anterior fibula, interosseous membrane ## Footnote MAF and IM

Question 44

Insertion of extensor hallucis longus

Answer 44

Distal phalange 1 toe

Question 45

Action of extensor hallucis longus

Answer 45

Extend 1st toe, dorsiflexion ankle, invert foot