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Chapter 23: The Eye & Ear: Special Sense Organs

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Which of the following is the thickest component of the cornea?

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a. Corneal epithelium

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b. Stroma

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c. Descemet membrane

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d. Bowman membrane

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e. Corneal endothelium

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Which description is accurate for lens fibers?

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a. Are terminally differentiated fibroblasts

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b. Consist of specialized type I collagen

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c. Derived from epithelial cells that produce proteins called crystallins

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d. Consist of type III collagen

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e. Have the same embryonic origin as the neural retina

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Which structure is the most anterior extension of the eye’s vascular layer?

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a. Ciliary body

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b. Cornea

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c. Lens

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d. Iris

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e. Zonule

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Which cells transmit visual signals from the retina to the brain?

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a. Bipolar cells

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b. Amacrine cells

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c. Ganglion cells

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d. Horizontal cells

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e. Müller cells

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The epithelial cells within the organ of Corti are supported by which of the following structures?

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a. Spiral limbus

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b. Tectorial membrane

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c. Vestibular membrane

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d. Basilar membrane

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e. Spiral ligament

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The middle ear contains which of the following structures?

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a. The labyrinth

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b. The modiolus

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c. The perilymph

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d. The vestibular apparatus

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e. The ossicles

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Which structure in the cochlea is analogous in composition and function to the cupola of each semicircular canal?

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a. Tectorial membrane

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b. Pillar cells

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c. Inner tunnel

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