Every human body has an unaccountable number of this basic unit of a muscle as
a.)muscle fibers
b.)liagments
c.)tendons
d.)muscle
slow twitch muscles are needed for
a.)high intensity , quick , short bursts of energy
b.)endurance activities
c.)speed or power activites
d.)low endurance and short durations excerises
a group of muscle fiber responsible
when a muscle fiber contracts as much as it is called the
a.)maximum potiental
b.)contraction principle
c.)muscular capacity principle
d.)all or none principle
select the answer below that best fits the following description
-voluntary
-come in pairs
-attatch the bones through tendons
-made up of long , cylindrical fibers
a.)skeletal muscles
b.)cardiac muscles
c.)smooth muscles
d.)contracted muscles