HA block 3 misc.

step 1 of excitation-contraction process at NMJ

nerve action potential

step 2 of excitation-contraction process at NMJ

entry of ca2+

step 3 of excitation-contraction process at NMJ

fusion of vesicles & release of Ach

step 4 of excitation-contraction process at NMJ

binding of Ach to nicotinic receptor

step 5 of excitation-contraction process at NMJ

end plate potential

step 6 of excitation-contraction process at NMJ

muscle action potential

step 1 of excitation-contraction process in skeletal muscle

propagation of muscle action potential

step 2 of excitation-contraction process in skeletal muscle

binding of Ca2+ by troponin

step 3 of excitation-contraction process in skeletal muscle

troponin pulled off actin active sites

step 4 of excitation-contraction process in skeletal muscle

cross-bridge formation

step 5 of excitation-contraction process in skeletal muscle

tension & muscle shortening

step 6 of excitation-contraction process in skeletal muscle

Ca2+ pumped back into the SR and relaxation

ipsilateral or contralateral?

fasciculus gracilis

contralateral

ipsilateral or contralateral?

fasciculus cuneatus

contralateral

ipsilateral or contralateral?

dorsal spinal cerebellar tract

ipsilateral

ipsilateral or contralateral?

ventral spinocerebellar

ipsilateral

ipsilateral or contralateral?

cuneocerebellar

ipsilateral

ipsilateral or contralateral?

rostral spinocerebellar

ipsilateral

ipsilateral or contralateral?

spinal reflex

ipsilateral

ipsilateral or contralateral?

spinothalamic relay

contralateral

ipsilateral or contralateral?

quintothalamic reflex

ipsilateral

ipsilateral or contralateral?

quintothalamic relay

contralateral