Myocyte Might
Multi-nucleate cell with striations
What are skeletal muscle cells
Muscles produce movement by _________ and ___________
What is contracting and shortening?
Decreasing the angle of a joint to bring two bones closer together
What is Flexion
Muscle that opposes or reverses a prime mover
What is an antagonist?
Calf Muscle
what is Gastrocnemius
Aerobic exercise requires ________ for muscles during endurance activities like running, swimming,& biking
What is O2 (oxygen)
Connective tissues that attaches muscle to bone
what are tendons
In doing a jumping jack, this is the movement of a limb AWAY from the midline
What is abduction?
“Helper” Muscle
What is a synergist muscle?
"Kissing Muscle"
What is Orbicularis Oris
The immediate source of energy for a muscle contraction
What is ATP
Type of muscle contraction where there is no movement (i.e. Planks)
What are isometric contractions?
Pointing the foot upward towards the shin
What is dorsiflexion?
Muscle with the major responsibility
What is a prime mover?
The forehead muscle
What is Frontalis
DAILY DOUBLE
This theory describes Ca binding to regulatory proteins on muscle filaments (myosin/actin crossbridge)
What is the Sliding Filament Theory(model)?
Exercise increases muscle size, strength, and ________
What is the endurance?
The main functions of our muscles is to produce movement, maintain posture, stabilize joints, and ________________
What is generate heat
Muscle that stabilizes the origin of a prime mover
What is a fixator muscle?
The "smiling muscle"
What is zygomaticus
This layer of connective tissue covers the entire skeletal muscle
What is epimysium
Type of muscle that’s controlled voluntarily or consciously
What is Skeletal Muscle?
Combination of extension, flexion, abduction, and adduction
What is circumduction?
The Deltoid and Trapezius muscle are not named for their size but for their _________
What is their SHAPE?
DAILY DOUBLE
The name of the 4 Quadricep muscles
What is the
Rectus femoralis
Vastus medialis,
Vastus intermedius, &
Vastus lateralis ?