summation

• a motor neuron

• a muscle contraction during latent period

• increased force of contraction when a twitch occurs before the previous twitch relaxes

• part of the whole

hyper

• above, over

• below

• to the side

• to the opposite side

agonist

• assist the prime mover

• prime mover

• the muscle that is bigger

• it is not involved in muscle contraction

twitch

• double contraction followed by relaxation

• triple contraction followed by stress

• single contraction followed by relaxation

• any number of contractions followed by relaxation

extension

• decrease of angle

• increase of angle

• prime mover

• against action

myo-

• neuron

• movable end

• protein, hemoglobin

• muscle

fiber

• skin cell

• muscle cell

• bone cell

• epithelial cell

-troph

• undernourished

• well fed

• stable in strength

• muscle cell

cardiac

• heart, involuntary, branching, striations

• heart, voluntary, branching, striations

• heat, smooth, involuntary

• heart, striations, voluntary

involuntary, no striations

• skeletal muscle

• cardiac muscle

• smooth muscle

• hypertrophy of muscles