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Muscle Contractions
Joint Movement
Sliding Filament Theory
Biomechanics
Biomechanics II
100
The muscle shortens during the contraction.
What is a concentric contraction?
100
The joint movement on the up phase of a biceps curl.
What is flexion?
100
The neurotransmitter released that begins muscular contraction.
What is acetylcholine?
100
Examines forces caused by the human body and forces on the body from outside and the effects they have on the body's motion.
What is biomechanics?
100
A body or object that changes its position from one place to another.
What is displacement?
200
The muscle elongates during muscular contraction.
What is eccentric contraction?
200
Joint movement on the up phase during the squat.
What is extension?
200
Released from the sarcoplasmic reticulum.
What are calcium ions? Ca++
200
A measurement that has both size and direction.
What is a vector?
200
Bodies or objects stay where they are or keep moving unless acted on by an unbalanced force.
What is the law of inertia? or What is Newton's first law?
300
The muscle doesn't shorten or lengthen during contraction.
What is isometric contraction?
300
Circular motion.
What is circumduction?
300
Aids in exposing actin binding sites.
What is troponin?
300
A measurement that only has size.
What is a scalar?
300
Height of release, angle of release, & speed of release.
What are factors that affect projectile motion during take off or release?
400
Both eccentric and concentric.
What is isotonic contraction?
400
Lateral rotation of the ankle joint. Also known as supination.
What is inversion?
400
Attaches to actin and pulls inward.
What is myosin? What are myosin heads?
400
Motion in a straight line.
What is linear motion?
400
Angular velocity increases.
What is the impact of the moment of inertia decreasing?
500
Delayed onset muscle soreness (DOMS) is related to this type of contraction.
What is eccentric contraction?
500
Standing on the toes.
What is plantar flexion?
500
Neurotransmitter that removes acetylcholine, thus stopping muscular contraction.
What is acetylcholine esterase or cholinesterase?
500
Motion around an axis.
What is angular motion?
500
The pressure exerted by a fluid is inversely related to its velocity.
What is Bernoulli's principle?