Beta
____________________
receptors
are
located
in
the
____________________
.
It
causes
an
increase
in
the
____________________
producted
by
the
heart
muscle
.
This
____________________
heart
____________________
and
the
____________________
of
____________________
.
Beta
____________________
receptors
are
located
in
____________________
muscle
.
It
causes
____________________
and
____________________
.