Question

tophi are small, white yellow, non - tender nodules located at the helix or antihelix of the ear, which are most closely associated with? darwins tubercle otitis externa mastoiditis gout question 18 (mandatory) (2 points) accommodation refers to: pupillary dilation when looking at a near object pupillary constriction when looking at a near object involuntary blinking in the presence of bright light changes in peripheral vision in response to light

Explanation:

• Tophi and Gout: Tophi are deposits of monosodium urate crystals. Gout is a metabolic disorder characterized by hyperuricemia (high uric acid levels), which leads to the formation of these crystals. Tophi are a classic manifestation of chronic gout, often seen in areas like the ear (helix or antihelix).
• Darwin's tubercle: It is a congenital, harmless, small thickening on the ear, not related to tophi.
• Otitis externa: It is an inflammation of the external ear canal, presenting with pain, redness, and swelling, not nodules like tophi.
• Mastoiditis: It is an infection of the mastoid air cells (behind the ear), with symptoms like post - auricular pain, swelling, and fever, not tophi.

• Accommodation: Accommodation in the eye refers to the process of changing the shape of the lens to focus on near objects. Along with accommodation, the pupillary light reflex causes pupillary constriction when looking at a near object (as part of the near triad: accommodation, convergence, and miosis).
• Pupillary dilation when looking at a near object: Incorrect. Dilation (mydriasis) is more associated with low - light conditions or certain drugs, not accommodation.
• Involuntary blinking in the presence of bright light: That is the blink reflex (photophobia - related blinking), not accommodation.
• Changes in peripheral vision in response to light: Peripheral vision changes are not the definition of accommodation. Accommodation is about focusing on near objects through lens - shape change and associated pupillary constriction.

Answer:

• First question: Gout
• Second question: pupillary constriction when looking at a near object