Middle Ear Anatomy Quiz

What are the three ossicles found in the middle ear?

• Malleus, Incus, Stapes

• Oval window, Round window, Sinus tympani

• Tympanic membrane, Eustachian tube, Chorda tympani

• Tensor tympani, Stapedius, Promontory

Which muscle is NOT found in the middle ear?

• None of the above

• Sternocleidomastoid

• Stapedius

• Tensor tympani

What structure separates the tympanic cavity from the middle cranial fossa?

• Chorda tympani

• Eustachian tube

• Tegmen tympani

• Tympanic membrane

Which wall of the middle ear is formed by a thin plate of bone separating it from the internal carotid artery?

• Lateral wall

• Medial wall

• Posterior wall

• Anterior wall

What is the function of the Eustachian tube?

• Protects the inner ear

• Supports the tympanic membrane

• Transmits sound vibrations

• Equalizes pressure in the middle ear

Which of the following structures is located in the medial wall of the middle ear?

• Fossa incudus

• Aditus

• Promontory

• Pyramid

What is the role of the stapedius tendon in the middle ear?

• None of the above

• Supports the Eustachian tube

• Connects to the tympanic membrane

• Attaches to the neck of the stapes

How does the chorda tympani nerve relate to the ossicles?

• It is attached to the stapes

• It passes lateral to the long process of incus

• It is found in the anterior wall

• It connects to the tympanic membrane

What is the significance of the jugular bulb in relation to the middle ear?

• It is a common site for infections

• It separates the hypotympanum from the dome of the jugular bulb

• It connects to the Eustachian tube

• It is a part of the auditory pathway

What is the primary function of the tympanic plexus?

• To equalize pressure

• To provide sensory innervation

• To transmit sound vibrations

• To protect the inner ear