LAB quiz femur

Question 1

what is the fovea capitis

Answer 1

dimple on end of femur

attachment for ligamentum teres
intra articular ligament

provides stability to hip and is taut when slightly flexed, abducted and externally rotated

contains acetabular branch of obturator artery

Question 2

what 3 tendons sit in the malleolar groove

Answer 2

flexor digitorum longus
flexor hallucis longus
tibialis posterior

Question 3

what does the ACL reisst

Answer 3

anterior translation and medial rotation of tibia
taut in hyperextension

Question 4

what does the PCL reisst

Answer 4

posterior translation

taut in HYPERFLEXION

Question 5

what does the MCL resist

Answer 5

VALGUS (valgum) forces

inward bowing

Question 6

what does the LCL resist

Answer 6

varus (varum) forces

(outward bowing)

Question 7

what ligament would be tense with flexion of knee

Answer 7

PCL

Question 8

what ligament would be tense with extension

Answer 8

ACL

Question 9

what does a meniscus do

Answer 9

distributes weight evenly and reduces friction w movement

transverse ligament attaches menisci

Question 10

bursas of the knee and where they are

Answer 10

suprapatellar - superior to patella
infrapatellar - inferior / anterior to patella

prepatellar - anteriorly on top of patella

semimembranosus - posterior patella between knee and femur

Question 11

explain quads group muscle test

Answer 11

sitting

full extension of knee joint

pressure against leg above ankle and pushing down into flexion

stabilizing top of quads - same side u are mm testing

Question 12

which mm’s attach to linea aspera

Answer 12

vastus lateralis / intermedius/ medialis
adductor longus / brevis / magnus
short head biceps femoris

Question 13

mm test biceps femoris

Answer 13

prone

examiner holds thigh down on table

flexion of knee (50-70) degrees
thigh is slight LATERAL rotation

pressure against leg proximal to ankle

Question 14

mm test semimembranosus / tendinosus

Answer 14

prone

examiner holds thigh down on table

flexion of knee (50-70 degrees)
thigh in slight MEDIAL rotation

pressure against leg proximal to ankle

Question 15

screw home mechanism

Answer 15

tibia glides anteriorly on femur, PCL ELONGATES

during last 20 degrees, anterior tibial glide persists on medial condyle

prolonged anterior tibial glide produces EXTERNAL TIBIAL ROTATION

Question 16

which way does the tibia rotate during swing phase (flexion)

Answer 16

internally

Question 17

actions of glute max

Answer 17

extends, laterally rotates hip

upper fibres - abduct
lower fibres - adduct

Question 18

mm test of glute max

Answer 18

prone, leg in 90 degrees

fixation - posterior back muscles
laterally - lateral abdominal muscles
anteriorly - opposite hip flexors

hip extension w knee flexed

pressure against lower part of posterior thigh

Question 19

actions of glute med

Answer 19

abduct

ant fibres - medially rotate
post - laterally rotate

Question 20

mm test glute med

Answer 20

side lying
bottom leg flexed @ hip and knee
pelvis rotated slightly forward

stabilize pelvis

abduction of hip w slight extension and slight external rotation

pressure against leg near ankle

Question 21

mm test glute min

Answer 21

side lying
abduction of hip
stabilize pelvis
pressure against leg

Question 22

iliopsoas actions

Answer 22

flexion and lateral rotation of hip
assist in anterior pelvis tilt

Question 23

mm test for iliopsoas

Answer 23

supine

stabilize opposite iliac crest

hip flexion in slight abduction and slight lateral rotation

pressure against anteromedial aspect of leg