Muscular System Flashcards
What is muscle tonus
when your muscles are contracting slightly
what are the fundamental units of contraction called?
myofibrils
what are myofibrils responsible for
increasing the muscle volume when you train.
fill in the blank.
training increases the number of____ which increases the volume of ______
training increases the number of myofibrilswhich increases the volume of muscle fibers
what is muscle atrophy?
the decrease in size and wasting of muscle tissue
what do muscles need to function?
food
where do your calories go when they can’t be used right away?
in ATP molecules (adenosine triphosphate)
why does the body have to renew ATP?
because the storage is limited
what systems feed the muscles?
- ATP-PC
- glycolytic system
- oxidative system
What is the difference between concentric and eccentric contraction?
concentric is when you bring weight towards your body and eccentric is when you move weights away from your body
