Which of the Following Describes Why Ultrasound Is Not Useful

question 36

Multiple Choice

Which of the following describes why ultrasound is not useful when imaging the skull, lungs, or intestines?

• A) Ultrasound does not penetrate bone.
• B) Ultrasound does not penetrate air-filled spaces.
• C) Ultrasound may not undergo reverse photoelectric absorption.
• D) Both a and b are correct.
• E) Both a and c are correct.

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Definitions:

Bipolar Cells

Neurons present in the retina of the eye that play a crucial role in transferring visual signals from photoreceptor cells to ganglion cells.

Photoreceptors

Cells in the retina of the eye that respond to light, crucial for vision.

Ganglion Cells

Neurons located in the retina that receive visual information from photoreceptors via intermediate bipolar cells and transmit it to the brain.

Optic Nerve

The nerve that transmits visual information from the retina to the brain.