Re: A question on B=?utf-8?Q?=C3=A9k=C3=A9sy.?= (Harriet B Jacobster )


Subject: Re: A question on B=?utf-8?Q?=C3=A9k=C3=A9sy.?=
From:    Harriet B Jacobster  <hjacobster@xxxxxxxx>
Date:    Fri, 19 Mar 2010 12:01:14 -0400
List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>

----------MB_8CC95948982D370_460_37F61_webmail-m051.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Yes, AKA the membrana tectoria. =20 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~=20 Harriet B. Jacobster, Au.D., CCC-A, FAAA=20 Board Certified in Audiology=20 hjacobster@xxxxxxxx -----Original Message----- From: reinifrosch@xxxxxxxx <reinifrosch@xxxxxxxx> To: AUDITORY@xxxxxxxx Sent: Fri, Mar 19, 2010 9:20 am Subject: A question on B=C3=A9k=C3=A9sy. Dear colleagues, At the bottom of page 475 of his book "Experiments in Hearing", cGraw-Hill, New York, von B=C3=A9k=C3=A9sy (1960) has written: "[...] It was further established that the gelatinous mass in the ochlear duct increased the rigidity of the partition, especially ear the helicotrema. [...]" What is that "gelatinous mass"? I seem to remember that he viscosity of endolymph is about equal to that of water.=20 A wild guess: "gelatinous mass" =3D tectorial membrane (??) Your (on- or off-line) suggestions would be very welcome,=20 f course, even if you are not absolutely sure ! Reinhart. Reinhart Frosch, r. phil. nat., . PSI and ETH Zurich, ommerhaldenstr. 5B, H-5200 Brugg. hone: 0041 56 441 77 72. obile: 0041 79 754 30 32. -mail: reinifrosch@xxxxxxxx . ----------MB_8CC95948982D370_460_37F61_webmail-m051.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="utf-8" <font color=3D'black' size=3D'2' face=3D'Arial, Helvetica, sans-serif'><WB= R>Yes, AKA the membrana tectoria.&nbsp; <br> <br> <div style=3D"CLEAR: both"><FONT face=3D"Arial, Helvetica, sans-serif" col= or=3Dblack size=3D2><FONT face=3D"Arial, Helvetica, sans-serif" color=3Dbl= ack size=3D2><FONT face=3D"Arial, Helvetica, sans-serif" color=3Dblack siz= e=3D2><FONT face=3D"Arial, Helvetica, sans-serif" color=3Dblack size=3D2><= FONT face=3Darial color=3Dblack size=3D2>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~= <br> Harriet B. Jacobster, Au.D., CCC-A, FAAA <br> Board Certified in Audiology <br> hjacobster@xxxxxxxx</FONT></FONT></FONT></FONT></FONT></div> <br> <br> <div style=3D"FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: arial,helvetica"= >-----Original Message-----<br> From: reinifrosch@xxxxxxxx &lt;reinifrosch@xxxxxxxx&gt;<br> To: AUDITORY@xxxxxxxx<br> Sent: Fri, Mar 19, 2010 9:20 am<br> Subject: A question on B=C3=A9k=C3=A9sy.<br> <br> <div id=3DAOLMsgPart_0_49915377-0cc1-4f51-a656-ed21c20c3ec0 style=3D"FONT-= SIZE: 12px; MARGIN: 0px; COLOR: #000; FONT-FAMILY: Tahoma, Verdana, Arial,= Sans-Serif; BACKGROUND-COLOR: #fff"><PRE style=3D"FONT-SIZE: 9pt"><TT>Dea= r colleagues, At the bottom of page 475 of his book "Experiments in Hearing", McGraw-Hill, New York, von B=C3=A9k=C3=A9sy (1960) has written: "[...] It was further established that the gelatinous mass in the cochlear duct increased the rigidity of the partition, especially near the helicotrema. [...]" What is that "gelatinous mass"? I seem to remember that the viscosity of endolymph is about equal to that of water.=20 A wild guess: "gelatinous mass" =3D tectorial membrane (??) Your (on- or off-line) suggestions would be very welcome,=20 of course, even if you are not absolutely sure ! Reinhart. Reinhart Frosch, Dr. phil. nat., r. PSI and ETH Zurich, Sommerhaldenstr. 5B, CH-5200 Brugg. Phone: 0041 56 441 77 72. Mobile: 0041 79 754 30 32. E-mail: <A __removedLink__167321104__href=3D"mailto:reinifrosch@xxxxxxxx= ">reinifrosch@xxxxxxxx</A> . </TT></PRE></div> <!-- end of AOLMsgPart_0_49915377-0cc1-4f51-a656-ed21c20c3ec0 --></div> </font> ----------MB_8CC95948982D370_460_37F61_webmail-m051.sysops.aol.com--


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