The Distance to a Reflector in Soft Tissue Is 15

question 100

Multiple Choice

The distance to a reflector in soft tissue is 15 cm.What is the round-trip time to this depth?

• A) 19.5 µs
• B) 195 µs
• C) 1.15 µs
• D) 11.5 µs

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Definitions:

Merkel Cells

Specialized skin cells that function as mechanoreceptors for touch sensation, located in the epidermis.

Proprioceptors

are sensory receptors found in muscles, tendons, and joints, providing information about body position and movement.

Dermis

The thick layer of living tissue below the epidermis that forms the true skin, containing sweat glands, hair follicles, and blood vessels.

Glossopharyngeal

The ninth cranial nerve, which is involved in tasting, swallowing, and the gag reflex, as well as controlling some muscles and salivary glands.