Can shapes be incorporated into one drawing; as making the green rectangles appear as the red drawing, so no lines appear between them, and filling them as a one unit? and incorporating a circle into a series of lines to become one drawing, centered vertically to each other? Can text be added to different parts?

```
\documentclass{article}
\usepackage{tikz}

\begin{document}

% begin incorporate shapes centred vertically

\begin{tikzpicture}[rounded corners=8pt,ultra thick]
\draw[blue, outer color=green, ,inner color=green!35] (0,0)rectangle+(2.,.7);
\draw[blue, outer color=green, ,inner color=green!35,rotate=90] (0,-.6)rectangle+(4,.7);
\draw[blue, outer color=green, ,inner color=green!35] (-.1,3.3)rectangle+(2.,.9);
\draw[blue, outer color=green, ,inner color=green!35] (-.1,1.5)rectangle+(7.5,.8);
\draw[blue, outer color=green, ,inner color=green!35,rotate=90] (2,-4)rectangle+(1.5,.7);
\end{tikzpicture}

\vskip 2cm

\begin{tikzpicture}[rounded corners=8pt,ultra thick]
\draw[red, top color=red, bottom color=red, middle color=red!25]
(0,0)--(0,-1)--(3.5,-1)--(3.5,-1.45)--(-3.5,-1.45)--(-3.5,-2.5)--(-2.5,-2.5)--(-2.5,-3)--(-4,-3)--(-4.,2)--(-2.,2)--(-2.,1)--(-3.5,1)--(-3.5,-1)--(-.5,-1)--(-.5,0)--cycle;
\end{tikzpicture}
% end incorporate shapes

\vskip 2cm

% begin Nerve Cell2
\begin{minipage}[c]{1\textwidth}
\hskip 4cm
{
\begin{tikzpicture}[blue, rounded corners=8pt,ultra thick]
\draw[inner color=yellow, outer color=red] (0,0)circle(.5cm);
\end{tikzpicture}
\vskip -.18cm
\hskip .88cm
\begin{tikzpicture}[blue, rounded corners=8pt,ultra thick]
\draw[top color=red, bottom color=red, middle color=red!25]
(0,0)--(0,-1)--(3.5,-1)--(4.2,-.8)--(3.4,-1.12)--(4.2,-1.1)--(3.4,-1.22)--(4.2,-1.4)--(3.4,-1.34)--(4.2,-1.65)--(3.5,-1.45)--(-3.5,-1.45)--(-4.,-2)--(-3.54,-1.25)--(-4.,-.5)--(-3.5,-1)--(-.5,-1)--(-.5,0)--cycle;
\end{tikzpicture}
}
\end{minipage}
% end Nerve Cell2

\end{document}

```

[![incorporate shapes as a one drawing](https://i.stack.imgur.com/kaDS0.jpg)](https://i.stack.imgur.com/kaDS0.jpg)