Muscle Types
What type of muscle has rhythmic and continuous contractions?
Cardiac
What are myofibers?
Muscle Cells
what is the contractile unit of the cell
Movement away from the midline of the body
abduction
Muscles are attached to bones by what two structures
Tendon, Aponeurosis
Where is smooth muscle found?
Hollow Organs
What does it mean when a muscle chooses to move on its own?
involuntary
what is the specialized plasma membrane that releases calcium?
Rotation toward the midline (inward)
medial rotation
bare zone that lacks actin
H zone
which type of muscle is uninucleated?
smooth and cardiac
muscle tone wasting away
atrophy
What essential nutrient is released during muscle contractions?
Calcium
circular movement of a limb at the far end
circumduction
A layer of connective tissue that is underneath the fascia and surrounds the muscle.
epimysium
what type of muscle is voluntary?
skeletal
Muscle contracts but there is no movement, muscle stays the same length
provides anchorage for thin filaments and elastic filaments
Z disc
pointing toes (bending down toward the ground)
plantar flexion
bundle of muscle fibers
fascicle
muscle or muscle group that has the action opposite to a particular agonist muscle
antagonist
attachment of a muscle that remains relatively fixed during muscular contraction - attached to the immovable bone
origin
Which muscle fiber is thick and which is thin?
actin:thin, myosin:thick
turning the sole of the foot outward (laterally)
Eversion
part of the muscle fiber that contains thin filaments only (light part)
I band