Activity 5A: Anatomy of the Human Ear

 

Topic: Hearing Part of: Unit: Challenges and Changes: Sensitivity to Vision & Hearing Compromises Lesson: Anatomy of the Human Ear

Entire Activity Download (3 pages)

 

Individual Downloads

Anatomy of the Human Ear Labeled Teacher Handout

Anatomy of the Human Ear Unlabeled Student Worksheet

Glossary Student Handout

 

Keywords

anatomy, ear, anatomical defect, function

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Activity Description

Pass out the unlabeled line drawing of the ear to each student. Using the labeled handout of the drawing have the students name the parts of the ear and label them on their picture. Ask the students to determine what the function is of each part of the ear. For each function, ask the students what hearing problems might occur if there was a defect in each individual anatomic area.

 

Examples of anatomic lesions, associated defects,
and hearing problems

Anatomic Site	Defect	Hearing Problem
External Auditory Canal	Becomes blocked with wax (cerumen)	Muffled hearing
Tympanic Membrane (Ear Drum)	Has a hole in it (perforation)	Decreased hearing until perforation healed
Middle Ear	Infection (otitis media)	Decreased hearing while infected
Inner Ear	Loss of hair cells (presbycusis)	Decreased ability to hear high pitched sounds

 

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