Homework Questions for midterm (ch.1,2,4) Flashcards
motion created by forces that incorporates factors of time, space, & mass moving system is described by which term?
osteokinematics
biomechanics
mechanics
kinematics
kinematics
a scalar quantity describes what characteristic(s) of an object?
velocity
distance
direction
magnitude
magnitude
the moment arm (MA) is the perpendicular distance bt. the application of force & the ?
resistance
axis
magnitude
pulley
axis
putting a wheelchair in motion, the individual must overcome which of Newton’s laws of motion?
Law of action-reaction
law of acceleration
law of inertia
None of the above
Law of Inertia
force that pushes body segments together creates:
traction
mobility
distraction
compression
compression
increasing the length of the force arm results in?
less resistance for the force to move
more resistance for the force to move
less force needed to move resistance
more force needed to move resistance
less force needed to move resistance
forces in the same plane & in the same or opposite directions are?
parallel forces
angular forces
perpendicular forces
concurrent forces
parallel forces
stability is increased by?
increasing BOS & raising the COM
narrowing the BOS & lowering the COM
Increasing the BOS & lowering the COM
narrowing the BOC & raising the COM
Increasing the BOS & lowering the COM
when resistance is bt the axis & the force, which class of lever is created?
1st
2nd
3rd
none
2nd class lever
movement of adjacent joint surface is termed?
arthrokinematic motion
osteokinematic motion
linear motion
angular motion
arthokinematic motion
an example of fibrous joint is?
cost sternal joint
suture of the skull
proximal tibiofibular joint
proximal distal radioulnar joint
sutures of the skull
when performing osteokinematic flexion of the shoulder, the arthrokinematic glide is the ____ as the roll
opposite direction
perpendicular direction
concurrent direction
same direction
opposite direction
synovial fluid provides?
blood supply to synovial membrane
resistance to arthrokinematics motion
nutrients to articular cartilage
all of the above
all of the above
is a condyloid joint also a synovial joint?
yes
another term to indicate diarthrodial joint is
synarthrodial
cartilaginous
fibrous
synovial
synovial
which type of cartilage is articular cartilage?
fibrocartilage
elastic
dense
hyaline
hyaline
the arthrokinematic motion of spin is defined as?
1 joint surface moving parallel to the plane of an adjacent joint surface
rotation of 1 point of 1 joint surface on the adjacent joint surface
1 joint surface rolling & gliding on an adjacent joint surface
1 part of a joint rolling on an adjacent joint surface
rotation of a single point of one joint surface on the adjacent joint surface
which type of joint provides the most mobility?
fibrous
synovial
cartilaginous
uniaxial
synovial/diarthrosis
the closed pack position of a joint:
has the least joint congruency
has the greatest joint play
provides stability
provides mobility
provides stability
&
has the greatest joint congruency
the anatomical position is
supine
prone
the starting position for movements
the position of ideal posture
the starting position for movements
an individual sitting on a high stool swinging their feet is an example of
closed kinetic chain
contralateral movement
open kinetic chain
anatomical position
open kinetic chain
the frontal axis passes ___ through the ___ plane
top to bottom, horizontal
front to back, frontal
side to side, frontal
side to side, sagittal
side to side, sagittal
osteokinematic motion includes:
roll
spin
flexion
glide
