The nursing student is taking an anatomy and physiology class. What anatomical structure equalizes air pressure in the middle ear?

Eustachian tube.

The malleus.

The pinna.

The meatus.

Answer and Explanation

The Correct Answer is A

Eustachian tube. The Eustachian tube is a narrow tube that connects the middle ear to the back of the nose and equalizes air pressure in the middle ear.

B. The malleus is a bone in the middle ear that transmits sound vibrations.

C. The pinna is the visible part of the ear that collects and directs sound waves.

D. The meatus is a passage or opening leading to the ear or nose.

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Correct Answer is C

Explanation

The fracture is on the diaphysis. The femur, which is the thigh bone, is made up of three parts: the head, neck, and diaphysis. The diaphysis is the long, cylindrical part of the bone between the proximal and distal ends. When reporting the location of a fracture on the femur, it is most accurate to describe the location as being on the diaphysis.

Choice A, the fracture is on the epiphyses, is incorrect because the epiphyses are the rounded ends of the bone and are not typically involved in long bone fractures.

Choice B, the fracture is on the tuberosity, is incorrect because the tuberosity is a bony prominence where muscles attach and is not typically involved in long bone fractures.

A. Tumor is confined to the prostate gland. B. Tumor has expanded to the bladder. C. Cancer is small with no symptoms. D. Tumor has spread beyond the prostate.

Correct Answer is A

Explanation

The tumor is confined to the prostate gland. Stage I prostate cancer means that the tumor is localized to the prostate gland and has not spread to other parts of the body.

B: This option is incorrect because it indicates that the tumor has expanded to the bladder, which is not indicative of stage I prostate cancer.

C: This option is partially correct, but it does not provide a complete picture of stage I prostate cancer.

D: This option is incorrect because it indicates that the tumor has spread beyond the prostate, which is not indicative of stage I prostate cancer.

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The nursing student is taking an anatomy and physiology class. What anatomical structure equalizes air pressure in the middle ear?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is C

Explanation

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Correct Answer is A

Explanation

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