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Activity 5A: Anatomy of the Human Ear
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.
| 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 |
Keywords:
Anatomy, ear, anatomical defect, function
Activity Code:
5AUnit Reference:
Challenges and Changes: Sensitivity to Vision & Hearing CompromisesLesson Reference:
Lesson 5: Anatomy of the Human Ear