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Skeletal muscle fibers contain numerous nuclei. This is used to produce large amounts of the enzymes and structural proteins needed for muscle contraction.
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The action potential is conducted into a skeletal muscle fiber by?
neuromuscular junctions Action potentials conduct down T tubules into skeletal muscles
WHAT type of cell does the skeletal muscle have?
Actually, Skeletal muscle in and of itself is a TYPE of muscle. There are three types of muscle.1.) Skeletal - the muscles that help us move around daily and are under voluntary control2.) Cardiac- the heart muscle basically3.) Smooth- these muscles are under involuntary nervous control. For example, the muscles in your digestive tract contract to move food downward. You don't have to think to initiate contractions do you? :)Skeletal Muscle can further more be broken down into fiber types I, II( IIa, IIb, IIx)type I muscles are slow twitch- highly resistant to fatigue. Type II are fast-twitch and have a low resistance to fatigue.
Which is smaller a myofibril or a myofiber?
Short Answer:A myofibril is smaller than a myofiber (muscle fiber).Long Answer:Skeletal Muscle Hierarchy:Muscle OrganPerimysium = white fibrous connective tissue & areolar connective tissue that surrounds each fascicleFascicle = bundle of skeletal muscle fibersEndomysium = areolar connective tissue that surrounds each muscle fiberMuscle Fiber ( Myofiber) = a muscle cellMyofibrils = contractile protein organellesMyofilaments = contractile proteins composed of:thick filaments = made of myosinthin filaments = made of actin
Each muscle fiber is also called a?
muscle cell
Unrefined plant foods contain a mix of fiber types?
Yes they do contain a mix of fiber types
A skeletal muscle fiber contains many nuclei?
Skeletal muscle fibers contain numerous nuclei. This is used to produce large amounts of the enzymes and structural proteins needed for muscle contraction.
Most skeletal muscles contain?
muscle fiber
Which subtype of muscle tissue does a fiber with cross striations and many peripherally located nuclei belong?
skeletal
What is the smallest contractile unit of the muscle fiber?
sarcomere
A skeletal muscle fiber contains many nuclei true or false?
True, each cell has many nuclei just beneath its cell membrane
What is the advantage of having many nuclei in a skeletal muscle fiber?
The ability to produce large amounts of the enzymes and structural proteins needed for contraction.
What is the multinucleate muscle fiber?
Skeletal
What are the structures within the muscle fiber that shorten to cause skeletal muscle fiber contraction?
Myofibrils
How relaxation in a skeletal muscle fiber occurs?
Relaxation of a skeletal muscle usually involves the Golgi tendon proprioceptors.
A specialized cell found in a skeletal muscle is called a muscle fiber?
true
How many nuclei in each cardiac muscle fiber?
1
The cytoplasm of a skeletal muscle fiber is called the?
Sarcoplasm
