Saltatory And Continuous Propagation

Front 1

_______ cannot occur along a _____, because myelin increase resistance to the flow of ions across the membrane

Back 1

continuous propagation
myelinated axon
(saltatory propagation 1)

Front 2

_____ can readily cross the membrane only at _____

Back 2

ions
nodes
(saltatory propagation 2)

Front 3

when an ______ appears at the _______ of a myelinated axon, the local current _____ the internodes and _______ the node closest to the threshold

Back 3

action potential
initial segment
skips
depolarizes
(saltatory propagation 3)

Front 4

_____ from node to node – saltatory propagation

Back 4

jumps
node
saltatory
(saltatory propagation 4)

Front 5

carries______ much more rapidly than _______ propagation

Back 5

impulses
continuous
(saltatory propagation 5)

Front 6

Myelination_____ coordination and control by decreasing the time between the _______ and the ______ of an appropriate response.

Back 6

improves
reception of a sensation
initiation
(saltatory propagation 6)

Front 7

_________ begins at the initial segment

Back 7

action potential
initial segment
(continuous propagation 1)

Front 8

the_______becomes ______ rather than negative

Back 8

transmembrane potential
positive
negative
(continuous propagation 2)

Front 9

a _______ then develops as ______ begin moving in the ______ and ______ – ________ propagation

Back 9

local current
sodium ions
cytosol and the extracellular fluid continuous
(continuous propagation 3)

Front 10

each time a local current develops, the ________ moves_______, not backward because the_____ is still in absolute refractory

Back 10

action potential
forward
backward
previous segment
absolute refractory
(continuous propagation 4)

Front 11

in _______ propagation, an action potential appears to _________ of a membrane in a series of______

Back 11

continuous
move across the surface
tiny steps
(continuous propagation 5)