Question Video: Identifying the Adrenal Glands from a Diagram of the Human Body | Nagwa Question Video: Identifying the Adrenal Glands from a Diagram of the Human Body | Nagwa

Question Video: Identifying the Adrenal Glands from a Diagram of the Human Body Biology • Third Year of Secondary School

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Which letter on the diagram indicates an adrenal gland?

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Video Transcript

Which letter on the diagram indicates an adrenal gland?

Let’s quickly review the key points about the roles of the adrenal glands and what their name means so we can answer this question correctly.

The adrenal glands, sometimes called suprarenal glands, are endocrine glands. The definition of an endocrine gland is a group of specialized cells that secrete hormones into the blood. A hormone is a chemical messenger that travels, usually through the bloodstream, to target cells, where they bring about a response. The adrenal glands release many different hormones with many different functions. Some of the hormones are involved in the fight-or-flight response to help protect us from danger. Others regulate food metabolism, water balance in our cells, and some even contribute to the development of our sexual characteristics.

This question is asking us to identify where the adrenal glands are found in our body. If we look at the name “adrenal” and break it down, it actually tells us where they are positioned. Renal is the Latin word for kidney, and ad- is the Latin for near to. As mentioned previously, the adrenal glands can also be called suprarenal glands. Supra- means above. If you combine all this information, it tells us that the adrenal glands are on top of the kidneys, near to them. They actually look a little bit like a hat on top of each kidney. We have two kidneys, each about the size of a fist. And they are found on each side of the vertebral column just below the rib cage.

If we now return to the diagram in the question and locate the kidneys, we will see the adrenal glands on top. This means the correct answer to the question “Which letter on the diagram indicates an adrenal gland?” is X.

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