Question Video: Identifying the Male Reproductive Organ That Secretes Testosterone | Nagwa Question Video: Identifying the Male Reproductive Organ That Secretes Testosterone | Nagwa

Question Video: Identifying the Male Reproductive Organ That Secretes Testosterone Biology • Third Year of Secondary School

The figure shows a side view of the organs of the male reproductive system. Which label represents the organ that secretes testosterone?

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Video Transcript

The figure shows a side view of the organs of the male reproductive system. Which label represents the organ that secretes testosterone?

To work out which of these organs secretes testosterone, let’s review the different organs that have been labeled in the diagram and their functions.

The primary function of the male reproductive system is to produce, store, and release mature sperm cells that would be capable of fertilizing a biological female’s egg cell. Sperm cells are produced in organs called the testes. A singular testis has been labeled on this diagram with the letter E. When the mature sperm cells are ready to be released, they are transported along a duct called the vas deferens which has been labeled with the letter A. The letter B is labeling the prostate gland, and the letter C is labeling one of the two seminal vesicles. These glands secrete fluids to make up the liquid semen that sperm travels through. Eventually, semen and the sperm cells within it will typically be released from the biological male’s body through the penis, which has been labeled with the letter D.

A hormone called testosterone controls the growth and development of many of these sexual organs and of secondary sex characteristics that are related to, but not directly involved in, reproduction. Testosterone, which also plays a significant role in regulating the process of sperm production, is produced and secreted by specific cells in the testes.

Now we know the correct answer to our question. The label that represents the organ that secretes testosterone is E, the testis.

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