FINAL EXAM - spine,ribs,trunk Flashcards
where is our center of gravity/ center of mass
anterior of S2
anterior pelvic tilt weak muscles
abs
glutes
hamstrings
what bones make up the greater sciatic notch
ilium
ischium
SI joint type
synovial, diarthrosis, plane
fibrous, syndesmosis, amphiarthrosis
FISH
NUTATION
inferiorly / anteriorly
pelvic outlet enlarges
ischial tubs. seperate
pubic symp approximates
iliac crest approximates
PSIS separates
ASIS flares in
bones serve as levers
joints serve as fulcrums
where is the fulcrum in first class lever
in between effort and load
where is the load in second class lever
in between fulcrum and effort
where is the effort in 3rd class lever
between the fulcrum and load
example of first class lever (seesaw)
atlanto occipital joint
axis = fulcrum
weigh of head = load
neck extensor muscles = effort
example of second class lever
standing on balls of feet - calf raise
MTP joint = axis
body weight = load
calf mm contracting = effort
example of third class lever **most common lever in the body*
biceps curl
elbow joint = axis
weight of arm = load
biceps mm contracting = effort
open chain
what is an example of all 3 types of movement - rolling, gliding, spinning
knee
as the knee extends the tibia externally rotates or spins on the femur and rolls and glides
if moving joint surface is concave, sliding is in what direction?
same direction as movement of the bone
concAve = sAme
isometric
mm contraction with NO LENGTH CHANGE
isotonic
mm contraction WITH LENGTH CHANGE
concentric
muscle shortens
eccentric
muscle lengthens
agonist
primary mover
produces concentric, eccentric, isometric contractions
what forms the iliopectineal line
arcuate line of ilium
pectineal line of pubic bone
facet/ apophyseal joint type
plane
uniaxial
intervertebral joint type
cartilaginous
symphysis
amphiarthrosis
triaxial
sacrococcygeal & pubic joint type
cartilaginous
symphysis
amphiarthrosis
uniaxial
genu varum
outward bowing