Grade 12 Ear Anatomy Worksheet
This worksheet covers the anatomy and physiology of the human ear, including its structures and functions, suitable for Grade 12 Biology students.
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Grade 12 Ear Anatomy Worksheet
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Read each question carefully and provide your best answer. Refer to the provided diagram where necessary.
Refer to the diagram of the human ear below for questions 1-3.
1. Which part of the ear is responsible for amplifying sound vibrations and transmitting them to the inner ear?
Pinna
Cochlea
Ossicles
Auditory nerve
2. The Eustachian tube connects the middle ear to the .
Outer ear
Pharynx
Vestibule
Semicircular canals
3. The three tiny bones in the middle ear are collectively known as the , and they include the malleus, incus, and stapes.
4. The is a spiral-shaped cavity of the inner ear that contains the organ of Corti, which is responsible for hearing.
5. Balance and spatial orientation are primarily maintained by the and the semicircular canals located in the inner ear.
6. The tympanic membrane is also known as the eardrum.
True
False
7. The outer ear primarily functions to funnel sound waves into the ear canal.
True
False
8. Describe the pathway of a sound wave as it travels from the outer ear to the auditory nerve.
9. Explain the role of the semicircular canals in maintaining balance.
Match each ear structure with its primary function.
10. Cochlea
a. Collects and directs sound waves
11. Pinna
b. Converts sound vibrations into electrical signals
12. Stapes
c. Transmits vibrations to the oval window
13. Vestibule
d. Contains structures important for static equilibrium
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