Author: saxmastasteve
Length: 04:45
i had to do a project in my bio class about muscle contraction so i decided to do somthing a little different from the norm. i described the whole process of how a muscle contracts in a rap by Kanye West's "Stronger".lyrics:n- n- now th- that will move memuscle contractions make me strongernervous system needs to hurry up nowCause muscles cant wait much longerI know they need to move right nowCause I cant get much wrongerbody is waitin till its the right time nowthat's where ill get startedthe muscle contraction the muscle contraction lets see how it starts all right?fuel by motor neuron were contraction startsstimulus leading is action potentialand this makes a synapse with the muscle fiberthe synaptic terminal release Achdiffuse through cleft and bind to fiber membraneit triggers, an action potentialaction potential moves down T tubulesSR releases calcium ionsTroponin is where calcium will then bindIt changes the shape of troponinremoves blocking action of tropomyosinthe myosin-binding sites are now exposedthis is how process goes down so fartheres alot that makes up all thisdon't think we are through yet, so much more, explaininn- n- now th- that will move memuscle contractions make me strongernervous system needs to hurry up nowCause muscles cant wait much longerI know they need to move right nowCause I cant get much wrongerbody is waitin till its the right time nowthat's where ill get startedthe muscle contractionthe muscle contractiongo againback to where we were then I will startso myosin is now exposedmyosin cross-bridges alternateback and forth attachin and detachin to actinactin filaments move toward sarcomere sliding of filaments by ATPby active transport calcium removedGoes to SR with end of action potentialThen block of myosin-binding siteThe contraction ends which is real tightMuscle fiber rests which is most likedWith stimulus present again which is all rightprocess starts over, contractions on sightthat's how contractions go down, we tight?Ugh, muscle contraction makin it (harder, faster, stronger)n- n- now th- that will move memuscle contractions make me strongernervous system needs to hurry up nowCause muscles cant wait much longerI know they need to move right nowCause I cant get much wrongerbody is waitin till its the right time nowthat's where ill get startedthe muscle contraction the muscle contraction now you know how it goes, don't ya?Muscle contraction is just another processNow explained no questions neededDon't act like I never told ya (5x)Muscle contraction makin it (harder, better, faster, stronger)n- n- now th- that will move memuscle contractions make me strongernervous system needs to hurry up nowCause muscles cant wait much longerI know they need to move right nowCause I cant get much wrongerbody is waitin till its the right time nowthat's where ill get startedthe muscle contraction (4x)now you know how it goes, don't ya?Muscle contraction is just another processNow explained no questions neededDon't act like I never told yanow you know how it goes, don't ya?Muscle contraction is just another processNow explained no questions neededDon't act like I never told yaNever told ya (4x)Never over (8x)well i hope you guys enjoy and learn a little somthin about muscle contraction.