cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Hirowati Ali
Contact Email
hirowatiali@med.unand.ac.id
Phone
+6281276163526
Journal Mail Official
mka@med.unand.ac.id
Editorial Address
Faculty of Medicine, Universitas Andalas
Location
Kota padang,
Sumatera barat
INDONESIA
Majalah Kedokteran Andalas
Published by Universitas Andalas
ISSN : 01262092     EISSN : 24425230     DOI : https://doi.org/10.25077
Core Subject : Health,
Health Professions Medicine & Pharmacology Public Health
Majalah Kedokteran Andalas (MKA) (p-ISSN: 0126-2092, e-ISSN: 2442-5230) is a peer-reviewed, open-access national journal published by Faculty of Medicine, Universitas Andalas and is dedicated to publish and disseminate research articles, literature reviews, and case reports, in the field of medicine and health, and other related disciplines
Arjuna Subject : Kedokteran - Kedokteran (Lain-Lain)
Articles 11 Documents
 1   2 
Search results for , issue "Vol 36, No 2 (2012): Published in August 2012" : 11 Documents clear
FISIKA MEDIK PROSES PENDENGARAN Lili Irawati
Majalah Kedokteran Andalas Vol 36, No 2 (2012): Published in August 2012
Publisher : Faculty of Medicine, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (388.817 KB) | DOI: 10.22338/mka.v36.i2.p155-162.2012

Abstract

AbstrakSuara yang didengar telinga manusia mengalami perubahan dari sinyal akustik yang bersifat mekanik menjadi sinyal listrik yang diteruskan saraf pendengaran ke otak. Proses mendengar tentunya tidak lepas dari organ pendengaran manusia yakni telinga.Telinga terdiri atas tiga bagian dasar, yaitu telinga bagian luar, telinga bagian tengah dan telinga bagian dalam. Setiap bagian telinga bekerja dengan tugas khusus untuk mendeteksi dan menginterpretasikan bunyi.Telinga bagian luar fungsi utamanya adalah mengumpulkan dan menghubungkan suara menuju meatus akustikus eksterna. Telinga bagian tengah terdiri dari 3 buah tulang (ossicle) yang akan mengamplifikasikan tekanan 20 kali dari gelombang suara untuk menghasilkan getaran cairan pada koklea. Pada telinga bagian dalam terdapat koklea, membran basilaris membentuk dasar duktus koklear. Membran basilaris ini sangat penting karena di dalamnya terdapat organ korti yang merupakan organ perasa pendengaran. Organ corti, yang terletak di atas membran basilaris di seluruh panjangnya, mengandung sel rambut yang merupakan reseptor suara. Sel rambut menghasilkan sinyal saraf jika rambut permukaannya mengalami perubahan bentuk secara mekanik akibat gerakan cairan di telinga dalam. Resonansi frekuensi tinggi dari membran basilaris terjadi dekat basis, tempat gelombang suara memasuki koklea melalui jendela oval dan resonansi frekuensi rendah terjadi dekat apeks. Sel rambut dalam yang mengubah gaya mekanik suara (getaran cairan koklea) menjadi impuls listrik pendengaran (potensial aksi yang menyampaikan pesan pendengaran ke korteks serebri).Kata kunci: Proses pendengaranAbstractSound heard by human ears undergo change from mechanical accustic signal to electrical signal continued by hearing nerves to brain. Of course the hearing process do not get out from human hearing organs in this case is ear.Ear comprise the three principle portions, external ear, middle ear, and internal ear. Each portion work with special task to detect and interpret the sound.The main function of the external ear is collecting and connecting sound toward the meatus acusticus externa. Middle ear consist three bones (ossicle) that will amplify pressure of 20 times than sound wave to yield fluid vibrationin the cochlear. In internal ear there are cochlear, basillary membrane establish cochlear duct base. The basillary membrane is most important because in it internal portion there are corti organs which is hearing sense organ. The corti organ, located on basillary membrane in entire its length, contain hair cells which is the soundTINJAUAN PUSTAKA156receptors. The hair cells yield nerve signal if surface hair undergo mechanically transformation result from fluid movement in internal ear. The high resonance frequency from basillary membrane take place near the base, sound wave site enter cochlear via oval window and low resonance frequency take place near the apex. The inner hair cells change mechanical sound style (the cochlear fluid vibration) become electrical impulse of hearing (potential act delivering hearing messenger to cerebral cortex).Key word : hearing process

Page 2 of 2 | Total Record : 11

 1   2 

Filter by Year

2012 2012


Reset
Filter By Issues
All Issue Vol. 48 No. 4 (2025): MKA October 2025 Vol. 48 No. 3 (2025): MKA July 2025 Vol. 48 No. 2 (2025): MKA April 2025 Vol. 48 No. 1 (2025): MKA January 2025 Vol 46, No 12 (2024): Online Oktober 2024 Vol 46, No 11 (2024): July 2024 Vol 46, No 10 (2024): Online May 2024 Vol 46, No 10 (2024): Supplementary April 2024 Vol. 47 No. 4 (2024): MKA October 2024 Vol. 47 No. 3 (2024): MKA July 2024 Vol. 47 No. 2 (2024): MKA April 2024 Vol. 47 No. 1 (2024): MKA Januari 2024 Vol 46, No 9 (2024): Supplementary Januari 2024 Vol 46, No 8 (2024): Online Januari 2024 Vol 46, No 7 (2023): Supplementary December 2023 Vol 46, No 5 (2023): Supplementary July 2023 Vol 46, No 4 (2023): Online Juli 2023 Vol. 46 No. 3 (2023): Online Juli 2023 Vol. 46 No. 3 (2023): Supplementary July 2023 Vol 46, No 3 (2023): Supplementary May 2023 Vol 46, No 2 (2023): Online April 2023 Vol 46, No 1 (2023): Online Januari 2023 Vol 46, No 6 (2023): Online Oktober Vol. 46 No. 4 (2023): Online Oktober Vol 45, No 4 (2022): Online October 2022 Vol 45, No 3 (2022): Online July 2022 Vol 45, No 2 (2022): Online April 2022 Vol 45, No 1 (2022): Online Januari 2022 Vol 44, No 7 (2021): Online Desember 2021 Vol 44, No 6 (2021): Online November 2021 Vol 44, No 5 (2021): Online Oktober 2021 Vol 44, No 4 (2021): Online September 2021 Vol 44, No 3 (2021): Online August 2021 Vol 44, No 2 (2021): Online July 2021 Vol 44, No 1 (2021) Vol 43, No 2 (2020): Online Mei 2020 Vol 43, No 1 (2020): Published in January 2020 Vol 42, No 3 (2019): Published in September 2019 Vol 42, No 3S (2019): Published in November 2019 Vol 42, No 2 (2019): Published in May 2019 Vol 42, No 1 (2019): Published in January 2019 Vol 41, No 3 (2018): Published in September 2018 Vol 41, No 2 (2018): Published in May 2018 Vol 41, No 1 (2018): Published in January 2018 Vol 40, No 2 (2017): Published in September 2017 Vol 40, No 1 (2017): Published in May 2017 Vol 39, No 2 (2016): Published in August 2016 Vol 39, No 1 (2016): Published in April 2016 Vol 38, No 3 (2015): Published in December 2015 Vol 38, No 2 (2015): Published in September 2015 Vol 38 (2015): Supplement 1 | Published in September 2015 Vol 38, No 1 (2015): Published in May 2015 Vol 37, No 3 (2014): Published in December 2014 Vol 37, No 2 (2014): Published in September 2014 Vol 37 (2014): Supplement 2 | Published in December 2014 Vol 37 (2014): Supplement 1 | Published in March 2014 Vol 37, No 1 (2014): Published in May 2014 Vol 36, No 2 (2012): Published in August 2012 Vol 36, No 1 (2012): Published in April 2012 Vol 35, No 2 (2011): Published in August 2011 Vol 35, No 1 (2011): Published in April 2011 Vol 34, No 2 (2010): Published in August 2010 Vol 34, No 1 (2010): Published in April 2010 Vol 33, No 2: Agustus 2009 Vol 33, No 1: April 2009 Vol 32, No 2: Agustus 2008 Vol 32, No 1: April 2008 More Issue