unit 6

Question 1

Answer 1

mitchodria

Question 2

mitchodria

Answer 2

Question 3

synaptic cledft

Answer 3

Question 4

Answer 4

synaptic cleft

Question 5

sliding filament theory?

Answer 5

actin slides past myosin and increases overlap thi makes th emsucle fiber shorten

Question 6

what shortens during sliding filamen ttheory?

Answer 6

i band, distanc ebetween z lines , h zone disaperas

Question 7

muscle fiber contracts bc of?

Answer 7

nerve impulse

Question 8

neurotrasmitter junction?

Answer 8

where axopn tewrminal of neuron meets muscle fiber

Question 9

axon terminal?

Answer 9

distal end of motor neurons axon terminal branch

Question 10

motor neuron axon terminal has?

Answer 10

calcium channels

Question 11

synaptic cleft ?

Answer 11

space between axonm terminal and muscle fivber

Question 12

motor end plate?

Answer 12

portion of sarcolema that forms NMJ

Question 13

before muscle contraction, ??? goes down the motor neuiron ???, then the nerve impulse arrives at the ???, then calcium channels open and calcium is ???, then ach goes across ???, then ach binds to ???

Answer 13

acytion potential , axon , axon terminal , taken in , synaptic cleft, receptors

Question 14

during excitation contraction, ??? binds to receptors and ??? starts, then ??? and k are taken in, then ??? goes across sarcolema and ??? is released, then ca binds to ???

Answer 14

ach , depolorization , na, action potential, ca , troponin

Question 15

during contraction, ??? form cross bridges and myosin heads engage in a ???, then acltin slides across ???, then myosin head ???

Answer 15

myosin heads , power storke, myosin, detachges