exam 3 chapter 9
which of the following connective tissue layers is outside all the others
epimysium
when skeletal muscle is producing co2 and water while making ATP, which chemical process
aerobic respiration
what is oxygen defecit
after excercise the 02 taken in exceends the o2 required for resting metabolism
smooth and cardiac muscle are similar in that they both
are under involuntary control
during resting conditions ...... is synthesized to store energy
creatine phosphate
Rigor mortis occurs after death because
cross-bridges form but can't release.
incomplete tetanus
muscle fibers partially relax between contraction
identify the statement concerning general functional characteristics of muscle that is true
muscle tissue shorten forcefully but lengthens passively
muscle hypertrophy results from increased numbers of?
myofilbrils and sarcomeres
complete tetanus
no relaxtion period
skeletal muscle fibers
possess striations
a myofilament is the
protein strand composed of actin or myosin
muscles exhibit the property of excitability. this means that the muscle....
responds to stimulation by the nervous system
T tubules are invaginations of the
sarcolemma
which type of muscle is multinucleated
skeletal muscle
which type of muscle tissue has neuromuscular junctions
skeletal muscle
which type of muscle tissue would cause flexion and extension of the arm
skeletal muscle
the model that describes the contraction of the muscle is called the
sliding filament model
Which muscle(s) can contract without the need for nervous stimulation?
smooth and cardiac muscle
Epimysium
surrounds individual muscles
which of the following would occur as the result of a single muscle contaction?
twitch
you are hired to work in a laboratory that measures the rate of human muscle contraction....
ATP
an isometric contraction is described as
a muscle produces an increasing tension as the length remains constant.
an isotonic contraction is described as
a muscle produces constant tension during contraction
T tubules
conduct action potentials deep into the muscle fiber
which of the following is not a function of skeletal muscle
constriction of organs
the capacity of a muscle cell to shorten forcfully is known as
contractiability
cardiac muscle cells are like skeletal muscle cells in that they both
have striations
tetanus of a muscle is thought to be caused by
high calcium ion concentrations in the sarcoplasm
anabolic steroids can do all of the following except?
increase the number of muscle fibers
As muscle activity increases, the body temperature _____.
increases
identify the statement concerning skeletal muscle that is true
it is responsible for locomotion
a sustained muscle contraction is known as a
tetanus
oxygen deficit
the amount of O2 that cells need to replenish ATP supplies after exercise
the type of muscle fatigue known as "osychological fatgue" is the result of
the emotional state of a person
which of the following is true concerning isotonic concentric contraction
the muscle shortens, but tension remains constant
myosin is also known as the
thick myofilament
