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Science
Physics
Biomechanics
Functional Anatomy Quiz 1
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Terms in this set (32)
locomotion
body transport
postural control
maintenance of posture in static and dynamic settings
manipulation of objects and grasping
type of motion
striking/throwing
type of motion
fusiform
spindle shaped
pennate
feather shaped; fascicles insert obliquely on a tendon that runs the length of the muscle
vertical orientation
upper and lower location
horizontal orientation
medial and lateral location
saggital plane
divides the body right to left
frontal plane
divides the body front and back
transverse plane
dives the body into top and bottom
sagittal plane corresponds with
mediolateral axes of rotation
frontal plane corresponds with
anteroposterior axes of rotation
transverse plane corresponds with
longitudinal axes of rotation
percentage of rest length
optimal length at which the muscle can generate max force
synovial joint
freely moveable joint
amphiarthrodial joint
slightly moveable
synarthrodial joint
immovable joint
six synovial joints
plane, hinge, pivot, condylar, saddle, ball and socket
motive force
causes a limb segment to speed up or change direction
resistive force
causes a limb segment to slow down or resists motion
concentric
muscle generates force while shortening
eccentric
muscle generates force while lengthening
isometric
muscle generates force, but no segmental motion
muscles can cause segmental motion
causes flexion, extension; against an external force
muscles can control segmental motion
an external force causes the segmental motion; muscles control extension or flexion
muscles prevent segmental motion
prevents flexion or extension
antagonistic muscles
the muscles on either side of the joint that cause back and forth reciprocal movement; muscles that perform the opposite segmental motion in the same plane
antagonistic muscle example
biceps and triceps
agonist muscle
muscle that contracts (shortens) to produce a movement
agonist muscle example
bicep curl
agonist vs antagonist
agonist is causing segmental motion and the antagonist is not contracting or is relaxed
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