A&P CHP. 8 Flashcards
The bulk of the heart is made up of?
Cardiac muscle
Thread like cylindrical cells that appear in bundles is?
Skeletal muscle
Skeletal tissue has three names
1) Skeletal muscle
2) Striated muscle
3) Voluntary muscle
Fibers that are tapered at each end and have a single nucleus is called
smooth muscle
What muscles are involuntary?
smooth and cardiac
What muscle is voluntary?
Skeletal
Muscle cells and called
fibers
what muscle is striated
skeletal and cardiac
what muscle has cells that branch frequently
cardiac
what muscle moves food into the stomach
Smooth Muscle
What muscle is non-striated
Smooth muscle
What muscle is voluntary
skeletal
What muscle is increases efficiency of the heart muscle in pumping blood
cardiac muscle
What muscle is involuntary
cardiac and smooth
What muscle attaches to the bone
Skeletal
what attaches muscle to bone
Tendon
what muscle is found in hollow organs
smooth muscle
`What muscle is also called visceral muscle
Smooth muscle
What encloses some tendons
tendon sheaths
The muscles attachment to this more stationary bone is called
its origin
what contraction is needed for energy?
A.T.P.
The muscle unit, excluding the ends
body
attachment to the more moveable bone
insertion
fluid filled sacs that lie between some tendons
bursae
what secretes a slippery lubricating fluid that fills the bursae
the synovial membrane
what are two kinds of thread like microfilaments called
thick and thin myofilaments
The thick myofilament are formed from a protein called
myosin
the thin myofilament are mainly composed of the protein?
actin
what is the basic functional or contractile unit of the skeletal muscle
sarcomere
Microscopic threadlike structures found in skeletal muscle fibers
myofilament
elongated contractile cells of muscle tissue
muscle fibers
muscles move bones by doing what
pulling against them
What encloses some tendons
tendon sheaths
We are able to maintain our body position because of continuous, low-strength muscle contraction called muscle tone or
tonic contraction
muscle tone maintains what
posture
how is fatigue caused
if muscle fibers are stimulated repeatedly without adequate periods of rest, the muscle contraction decreases
what is oxygen debt
the continually increasing metabolism that must occur in a call to remove the excess lactic acid that accumulates during prolonged exercise (labored breathing // pay the debt)