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Which of the following structures contains the vocal cords?

A.

Trachea

B.

Pharynx

C.

Larynx

D.

Epiglottis

Answer and Explanation

The Correct Answer is C

a. Trachea: The trachea is the windpipe, a tube that carries air from the larynx to the bronchi in the lungs. It does not contain vocal cords.

b. Pharynx: The pharynx is a muscular passageway at the back of the throat that connects the nasal cavity, oral cavity, and larynx. It does not contain vocal cords.

c. Larynx: The larynx, also known as the voice box, is located in the throat and contains the vocal cords. These are two folds of muscle that vibrate when air passes over them, producing sound for speech.

d. Epiglottis: The epiglottis is a small flap of cartilage that covers the opening of the larynx during swallowing. It does not contain vocal cords.


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Related Questions

Correct Answer is B

Explanation

a. Stratum granulosum: This layer is composed of keratinocytes that are in the process of dying and forming a barrier of keratin.

b. Stratum basale: This is the deepest layer of the epidermis, where keratinocytes are actively dividing. This layer contains stem cells that produce new keratinocytes to replace those shed from the surface.

c. Stratum lucidum: This layer is only present in thick skin, such as on the palms and soles, and consists of dead keratinocytes that have a translucent appearance.

d. Stratum spinosum: This layer contains keratinocytes that are beginning to produce keratin and other proteins but are not rapidly dividing.

Correct Answer is B

Explanation

a. Formation of polar bodies: Formation of polar bodies occurs only in oogenesis, not in spermatogenesis.

b. Meiosis: Correct. Both oogenesis and spermatogenesis involve meiosis, the process of cell division that reduces the chromosome number by half.

c. Development of a Graafian follicle: This is specific to oogenesis. The Graafian follicle is the mature ovarian follicle.

d. Fertilization: Fertilization is the union of sperm and egg, not a process that occurs during the development of either gamete.

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