NGHE KÉM
KHOA
TMH-CR
BS.Nguyễn Thị Mỹ Thắm
BS NT.Trần Quang Phúc
www.company.com
MỤC TIÊU
•Xác định bệnh nhân nghe kém
•Phân loại, mức độ nghe kém
•Nguyên nhân nghe kém
KHOA TMH
BV CR
www.company.com
SINH LÝ NGHE
KHOA
TMH-CR
KHOA TMH
BV CR
www.company.com
SINH LÝ NGHE
•Dẫn truyền âm thanh: tai ngoài, tai giữa, ngoại
dịch, nội dịch Tiếp nhận âm thanh: cơ quan
Corti của tai trong các xung thần kinh lên
các trung khu và vỏ não (hồi hải mã thùy thái
dương hai bên): phân tích và tổng hợp.
KHOA TMH
BV CR
www.company.com
ĐỊNH NGHĨA
•Giảm sức nghe trên 20dB xảy ra 1 hay
nhiều tần số.
KHOA TMH
BV CR
![Bài giảng Tai Mắt ThS. BS. Võ Thành Nghĩa [Tài liệu đầy đủ]](https://cdn.tailieu.vn/images/document/thumbnail/2025/20250428/vihizuzen/135x160/2711745806198.jpg)
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