Which anatomical structure houses the malleus, incus and stapes?
Skull
Lungs
Ear
Mouth
The Correct Answer is C
The malleus, incus, and stapes are three small bones, collectively known as the ossicles, located in the middle ear. These bones work together to transmit sound waves from the eardrum to the inner ear, where they are converted into nerve impulses that are then sent to the brain. The malleus is atached to the eardrum, the incus is in between the malleus and the stapes, and the stapes is connected to the inner ear. Together, they form a chain that amplifies the sound waves and transmits them efficiently to the inner ear.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Eating large amounts of turnips and beets can lead to a condition called beeturia, which causes the urine and skin to turn a reddish or purplish color. This condition is harmless and is caused by the betalain pigments present in these vegetables. As a strict vegetarian, it is possible that the client consumes large amounts of these vegetables, which could explain the unusual skin color.
Rice and eggs, carrots and squash, spinach and mustard greens are not known to cause unusual skin color. However, it is important for the nurse to ask the client about her diet and any supplements she may be taking to beter understand the cause of the unusual skin color.
Correct Answer is B
Explanation
The urethra is a tube that connects the bladder to the external environment and serves as a passageway for urine to exit the body during urination. In males, the urethra also serves as a passageway for semen to exit the body during ejaculation, making it a part of both the male reproductive system and the urinary system.
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