Quiz about A Guide to the Thyroid
Quiz about A Guide to the Thyroid

A Guide to the Thyroid Trivia Quiz


You can't see it and you can't feel it, but the thyroid has many important roles to play in the body. You can test your knowledge about it by taking this quiz.
This is a renovated/adopted version of an old quiz by author evadiva12329

A multiple-choice quiz by rossian. Estimated time: 2 mins.
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Author
rossian
Time
2 mins
Type
Multiple Choice
Quiz #
51,676
Updated
Nov 21 22
# Qns
10
Difficulty
Easy
Avg Score
8 / 10
Plays
289
Awards
Top 5% quiz!
Last 3 plays: Guest 78 (7/10), mazza47 (10/10), James25 (5/10).
This quiz has 2 formats: you can play it as a or as shown below.
Scroll down to the bottom for the answer key.
1. Where is the thyroid gland located? Hint

At the base of the brain
Just above the gall bladder
Behind the stomach
Low on the front of the neck

2. The shape of the thyroid most resembles which of these? Hint

An oval
A butterfly
A lightbulb
The letter U

3. What is the main function of the hormones T3 and T4 produced by the thyroid? Hint

Produce healthy blood cells
To create insulin
Release digestive enzymes
To control metabolism

4. Which element is essential for the thyroid to function properly? Hint

Iron
Sodium
Iodine
Magnesium

5. Which of these glands in the body is involved in the process in which the thyroid produces hormones? Hint

Pineal body
Adrenal
Pituitary
Thymus

6. Hashimoto's disease affects the thyroid and is classed as what kind of illness? Hint

Bacterial
Cancer
Autoimmune
Viral

7. Which of these is an illness caused by an over-active thyroid gland? Hint

Pick's disease
Tombs disease
Graves disease
Bright's disease

8. What is the name for swelling or enlargement of the thyroid gland? Hint

Goitre
Cyst
Oedema
Tumour

9. Low levels of the hormone thyroxine can be treated by a synthetic version. What four letter prefix goes in front of thyroxine in this medication? Hint

Levo
Para
Syno
Phen

10. The thyroid also produces calcitonin, which regulates the levels of which mineral when it is carried in the blood? Hint

Magnesium
Potassium
Calcium
Zinc


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Quiz Answer Key and Fun Facts
1. Where is the thyroid gland located?

Answer: Low on the front of the neck

The thyroid gland straddles the windpipe at the front of the neck. In men it is positioned just below the Adam's apple. It is a small gland, only about two inches (51 mm) across, but has important functions in the human body.
2. The shape of the thyroid most resembles which of these?

Answer: A butterfly

The thyroid has two lobes which are shaped rather like a pair of open butterfly wings. The lobes are usually, although not always, connected by a narrow strip of tissue known as an isthmus. During development of an embryo, the thyroid is located near the tongue, moving downwards to its location by around week seven.
3. What is the main function of the hormones T3 and T4 produced by the thyroid?

Answer: To control metabolism

Metabolism is the process of converting food into energy. The hormones produced by the thyroid are vital to produce the energy for all the processes of the body. These include breathing, controlling body temperature, circulation of the blood and digestion. The hormones also contribute to repairing damaged cells.

T0, T1 and T2 do exist but are considered to be inert and are described as by-products of the process of creation of the main hormones.
4. Which element is essential for the thyroid to function properly?

Answer: Iodine

The thyroid needs sufficient quantities of iodine to produce its hormones. In the developed world, most people obtain iodine from a varied diet and iodine is routinely added to table salt in some countries, like the USA although not the UK. Taking iodine supplements is not necessary for most people and can cause more harm than good.
5. Which of these glands in the body is involved in the process in which the thyroid produces hormones?

Answer: Pituitary

The process works on a loop involving the hypothalamus, the pituitary gland and the thyroid itself. The hypothalamus emits a thyroid releasing hormone which then prompts the pituitary gland to produce the thyroid stimulating hormone which tells the thyroid to produce T3 and T4.

When sufficient levels have been created, the hypothalamus stops releasing its hormone until levels drop again and the whole process restarts.
6. Hashimoto's disease affects the thyroid and is classed as what kind of illness?

Answer: Autoimmune

The disease was first identified by a Japanese doctor named Hakaru Hashimoto in 1912, hence the name, although it took until 1957 for it to be recognised as an autoimmune reaction. The disease causes the body's own immune system to destroy the cells of the thyroid as if they were a threat. It is slow to develop and is difficult to diagnose because of this. The thyroid is gradually destroyed so cannot produce sufficient hormones, a situation called hypothyroidism.

The causes are unknown and it is a disease that affects more women than men.
7. Which of these is an illness caused by an over-active thyroid gland?

Answer: Graves disease

Graves disease is also an autoimmune condition, but this causes the thyroid to become overactive and produce too many hormones, a condition known as hyperthyroidism. It is the most common kind of hyperthyroidism and causes symptoms which include anxiety, fatigue, heart palpitations and bulging eyes.

Treatment usually focuses on reducing the hormone production via radioactive iodine, taken orally (which will destroy part of the thyroid, reducing its output), or medications designed to reduce levels of the hormones the thyroid produces.
8. What is the name for swelling or enlargement of the thyroid gland?

Answer: Goitre

Goitre is caused by a swelling of the thyroid and is an indicator that something is not right. It is an externally visible swelling to the neck region and may involve the whole neck or just one side. The cause could be any of the diseases of the thyroid, discussed elsewhere in this quiz, with additional potential causes being nodules on the gland or hormonal changes, perhaps during menopause or pregnancy.

Goitre is rarely a serious issue, but it could indicate cancer, so consulting your doctor is advisable.
9. Low levels of the hormone thyroxine can be treated by a synthetic version. What four letter prefix goes in front of thyroxine in this medication?

Answer: Levo

Thyroxine was first extracted, using glands from pigs, in 1914 at the Mayo Clinic in the USA. The synthetic version was developed in the UK in 1927 by two British chemists, Charles Harington and George Barger. It is usually administered in tablet form, although injections and intravenous options are also available.

The drug comes in varying strengths, with blood tests being used to judge the levels required by an individual. Brand names include Synthroid and Euthyrox among many others, with Levothyroxine being the generic name.
10. The thyroid also produces calcitonin, which regulates the levels of which mineral when it is carried in the blood?

Answer: Calcium

The thyroid produces calcitonin, which acts to reduce the amounts of calcium in the blood. The reasons for the production of calcitonin aren't fully understood. Science knows what the hormone does but not why - studies show that a fluctuation in the levels of calcitonin seems to have no discernible effect on human health.

Calcitonin is specific to the calcium in blood, so has no impact on bones or teeth. The parts of the body for which this calcium is needed are the muscles (contraction) and nerves. It also has an impact on blood clotting the and the heart.
Source: Author rossian

This quiz was reviewed by FunTrivia editor WesleyCrusher before going online.
Any errors found in FunTrivia content are routinely corrected through our feedback system.
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