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Examen
His Pre-Licensing Exam Study Guide 2025/2026 – Ear Canal Anatomy, Pinna, Isthmus, External Canal Functions & Acoustical Signals || Verified Questions & Answers
HIS PRE-LICENSING EXAM STUDY GUIDE 2025/2026 – EAR CANAL ANATOMY, PINNA, ISTHMUS, EXTERNAL CANAL FUNCTIONS & ACOUSTICAL SIGNALS || VERIFIED QUESTIONS & ANSWERS 
 
Description: Complete HIS Pre-Licensing exam study guide updated for 2025/2026. Covers detailed anatomy of the ear canal, pinna, isthmus, external canal functions, and acoustical signals. Includes verified practice questions and correct answers to guarantee success for students preparing for the Hearing Instrument Specialist licensin...
Examen
His Pre-Licensing Final Exam Study Guide 2025/2026 Complete Questions And Correct Detailed Answers || 100% Guaranteed Pass <Recent Version>
PopularHIS Pre-Licensing FINAL EXAM STUDY GUIDE 
2025/2026 COMPLETE QUESTIONS AND CORRECT 
DETAILED ANSWERS || 100% GUARANTEED PASS 
<RECENT VERSION> 
 
 
1. The adult ear canal: - ANSWER Rises upward and forward then descends 
to the drum 
 
2. The isthmus is: - ANSWER Where the canal narrows to enter the 
temporal bone 
 
3. The pinna and the external canal together: - ANSWER -Gather and 
reinforce accoustical signals -With the irregular shape of the auricle, cause increases and...