exam 3 chapter 9

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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


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