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% Most of the following are not required for the majority
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% Document Info
\author{kkkklui}
\pdfinfo{
  /Title (biology-14-human-ears.pdf)
  /Creator (Cheatography)
  /Author (kkkklui)
  /Subject (Biology 14 Human ears Cheat Sheet)
}

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\begin{multicols}{3}
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\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Biology 14 Human ears Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{kkkklui} via \textcolor{DarkBackground}{\uline{cheatography.com/153917/cs/34757/}}}
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\noindent
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  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}kkkklui \\
  \uline{cheatography.com/kkkklui} \\
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  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 18th October, 2022.\\
   Updated 18th October, 2022.\\
   Page {\thepage} of \pageref{LastPage}.
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  Measure your website readability!\\
  www.readability-score.com
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\begin{document}
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% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
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\begin{multicols*}{4}

\begin{tabularx}{3.833cm}{x{2.0598 cm} p{1.3732 cm} }
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\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Structure}}  \tn
% Row 0
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3 regions & outer \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
 & middle \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
 & inner \tn 
% Row Count 3 (+ 1)
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\begin{tabularx}{3.833cm}{x{1.57918 cm} x{1.85382 cm} }
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\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{How we hear}}  \tn
% Row 0
\SetRowColor{LightBackground}
Sound waves & collected by pinna are directed to eardrum \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
 & causes eardrum to vibrate \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
Earbones & amplify and transmit vibration to oval window \tn 
% Row Count 7 (+ 3)
% Row 3
\SetRowColor{white}
Oval window & vibrates \tn 
% Row Count 8 (+ 1)
% Row 4
\SetRowColor{LightBackground}
 & cause perilymph in cochlea to vibrate \tn 
% Row Count 10 (+ 2)
% Row 5
\SetRowColor{white}
 & vibrations in perilymph is transmitted to endolymph of cochlea \tn 
% Row Count 13 (+ 3)
% Row 6
\SetRowColor{LightBackground}
Sensory hair cells (central canal) & stimulated \tn 
% Row Count 15 (+ 2)
% Row 7
\SetRowColor{white}
 & generate nerve impulses \tn 
% Row Count 17 (+ 2)
% Row 8
\SetRowColor{LightBackground}
produce sensation of hearing & nerve impulses travel along auditory nerves to auditory centre in brain \tn 
% Row Count 21 (+ 4)
% Row 9
\SetRowColor{white}
 & vibration in perilymph transmitted to round window \tn 
% Row Count 24 (+ 3)
% Row 10
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Round window & releases fluid pressure in the cochlea to the air in middle ear \tn 
% Row Count 27 (+ 3)
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% Row 0
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Pinna (ear flap) & flap of cartilage covered by skin \tn 
% Row Count 2 (+ 2)
% Row 1
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 & collects sound waves in surrounding \tn 
% Row Count 4 (+ 2)
% Row 2
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 & directs them along auditory canal to eardrum \tn 
% Row Count 6 (+ 2)
% Row 3
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Auditory canal & produces wax \tn 
% Row Count 8 (+ 2)
% Row 4
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wax & lubricates canal \tn 
% Row Count 9 (+ 1)
% Row 5
\SetRowColor{white}
 & traps dirt and bacteria to prevent them entering the middle ear \tn 
% Row Count 12 (+ 3)
% Row 6
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Eardrum & thin, elastic membrane at the end of auditory canal \tn 
% Row Count 14 (+ 2)
% Row 7
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 & convert sound waves to vibrations \tn 
% Row Count 16 (+ 2)
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\begin{tabularx}{3.833cm}{x{0.99557 cm} x{2.43743 cm} }
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\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Middle ear}}  \tn
% Row 0
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Ear bones & 3 tiny ear bones \tn 
% Row Count 1 (+ 1)
% Row 1
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 & smallest bones in body \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
 & amplify and transmits vibration from eardrum to oval window \tn 
% Row Count 5 (+ 3)
% Row 3
\SetRowColor{white}
Oval window & flexible membrane \tn 
% Row Count 6 (+ 1)
% Row 4
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 & transmits vibration from ear bones to inner ear \tn 
% Row Count 8 (+ 2)
% Row 5
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Round window & releases fluid pressure in cochlea into the air \tn 
% Row Count 10 (+ 2)
% Row 6
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Eustachian tube & tube connecting middle ear to pharynx \tn 
% Row Count 12 (+ 2)
% Row 7
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 & normally closed \tn 
% Row Count 13 (+ 1)
% Row 8
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 & swallowing to open it to allow air to enter or leave middle ear \tn 
% Row Count 16 (+ 3)
% Row 9
\SetRowColor{white}
 & equalised the pressure on either side of eardrum \tn 
% Row Count 18 (+ 2)
% Row 10
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Unequal pressure & eardrum will bulge \tn 
% Row Count 20 (+ 2)
% Row 11
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 & bulging eardrum cannot vibrate freely \tn 
% Row Count 22 (+ 2)
% Row 12
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 & cannot hear clearly \tn 
% Row Count 23 (+ 1)
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% Row 0
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Cochlea & for hearing \tn 
% Row Count 1 (+ 1)
% Row 1
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 & coiled tube with three parallel canals separated by membranes \tn 
% Row Count 4 (+ 3)
% Row 2
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perilymph & fluid in upper and lower canal \tn 
% Row Count 6 (+ 2)
% Row 3
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endolymph & fluid in central canal \tn 
% Row Count 7 (+ 1)
% Row 4
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sensory hair cells & in central canal \tn 
% Row Count 9 (+ 2)
% Row 5
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 & detects vibrations of endolymph \tn 
% Row Count 11 (+ 2)
% Row 6
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endolymph vibrates & sensory hair cell hairs are bent \tn 
% Row Count 13 (+ 2)
% Row 7
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 & sensory hair cells generate nerve impulses \tn 
% Row Count 15 (+ 2)
% Row 8
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 & nerve impulses travels along auditory nerves to auditory centre in brain \tn 
% Row Count 18 (+ 3)
% Row 9
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\seqsplit{Semicircular} canals & not involved in hearing \tn 
% Row Count 20 (+ 2)
% Row 10
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sensory hair cells & detection of head movements \tn 
% Row Count 22 (+ 2)
% Row 11
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 & stimulated, send nerve impulse to brain \tn 
% Row Count 24 (+ 2)
% Row 12
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 & brain coordinate muscled to maintain body balance \tn 
% Row Count 26 (+ 2)
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% That's all folks
\end{multicols*}

\end{document}