In
the
stretch
reflex
,
sensory
receptors
are
____________________
____________________
____________________
.
They
are
a
____________________
muscle
fiber
.
Contractile
ends
are
innervated
by
____________________
____________________
____________________
.
These
neurons
can
contract
to
pull
on
the
____________________
of
the
fiber
.
This
maintains
____________________
of
____________________
portion
of
spindle
during
muscle
contraction
.
In
the
stretch
reflex
,
the
____________________
____________________
____________________
of
the
fiber
is
sensitive
to
tension
.
The
sensory
fiber
synapses
____________________
with
____________________
____________________
____________________
which
innervate
the
muscle
in
which
the
muscle
spindle
fiber
is
found
.
There
is
no
____________________
in
this
reflex
.
Stretching
of
muscle
will
ultimately
result
in
the
____________________
of
the
same
____________________
.
This
reflex
is
important
in
____________________
and
____________________
____________________
.
