The Thyroid Gland

Q.

What is the role of thyroxine in the body?

1. Digestive function

2. Brain development

3. Osmoregulation

4. Bone health

Q. Identify the parts labelled A-C in the image given below. Use the hints given below the image for correct identification.


A - cells that form the thyroid follicles
B - cells that secrete calcitonin
C - contains thyroglobulin

1. A - Cuboidal follicular cells, B - C cells, C - Colloid
2. A - Cuboidal follicular cells, B - Colloid, C - C cells
3. A - Cuboidal follicular cells, B - Parafollicular cells, C - C cells
4. A - Cuboidal follicular cells, B - Parafollicular cells, C - Colloid

Q.

The hormone which regulates the basal metabolism of our body is secreted from the

1. Hypothalamus

2. Pituitary gland

3. Thyroid

4. Pineal body

Q.

Question 3
How does our body respond when adrenaline is secreted into the blood?

Q.

Question 13
Iodine is necessary for the synthesis of which hormone?

(a) Adrenaline
(b) Thyroxine
(c) Auxin
(d) Insulin

Q.

Toxic agents present in food that interfere with thyroxine synthesis lead to the development of:

1. Toxic goitre

2. Cretinism

3. Thyrotoxicosis

4. Simple goitre

Q.

Name one function of thyrocalcitonin.

Q. Which of the following is not regulated by thyroxine?

1. Carbohydrate and fat metabolism
2. Protein metabolism
3. Calcium level in blood
4. Heart rate

Q.

What causes goitre? Mention one of the symptoms.

Q. Calcitonin is produced by the . The function of calcitonin is to the amount of calcium in blood.

1. thyroid gland
2. parathyroid gland
3. increase
4. decrease

Q. Thyroxine is secreted by _____ gland.

1. thyroid
2. adrenal
3. pineal
4. pituitary

Q. Thyroxine hormone regulates the of the body.

1. calcium absorption
2. water absorption
3. basal metabolism
4. blood glucose

Q.

Calcitonin is produced by the _____ gland.

Q. Write briefly the symptoms and causes of [4 MARKS]
(a) Exophthalmic goitre
(b) Diabetes mellitus

Q. Thyroxine is secreted by _____ gland.

1. thyroid
2. adrenal
3. pineal
4. pituitary

Q.

why is insulin not taken orally

Q. Which gland swells up due to goitre?

Q.

Name the hormone that regulates the rate of basal metabolism.

Enter 1 word only.

Q. One of the following statements is not true about thyroxine. This is:​

1. Thyroid gland can enlarge due to lack of thyroxine​
2. It regulates carbohydrate, protein and fat metabolism ​
3. Thyroid gland requires iron to synthesise thyroxine ​
4. Iodine is essential for the synthesis of thyroxine ​

Q.

Thyroid gland is located in which body part?

1. Brain

2. Neck

3. Stomach

4. Kidney

Q. Which statement is correct about the thyroid gland ?

1. Thyroid hormones are essential for the early development and maturation of the central nervous system.
2. $T_3$ and $T_4$ stimulate the secretion of TSH by the anterior pituitary
3. People who have an over active thyroid gland have a low BMR
4. Low plasma levels of thyroid hormones leads to thyrotoxicosis

Q.

which is the largest endocrine and exocrine gland in human? which is smallest exocrine and endocrine gland in humans?

areall those glands the same in males and females?

Q.

Give reason for the following:

People living in hilly regions usually suffer from goitre.

Q. Identify the gland which swells due to goitre.

1. 
2. 
3. 
4. 

Q. A pregnant female delivers a baby who suffers from stunted growth, mental retardation, low intelligence quotient and abnormal skin. This is the result of:

1. Deficiency of iodine in diet
2. Cancer of the thyroid gland
3. Low secretion of growth hormone
4. Over secretion of pars distalis

Q.

Graves' disease is caused due to

1. Hypersecretion of adernal gland
2. Hyposecretion of adrenal gland
3. Hyposecretion of thyroid gland
4. Hypersecretion of thyroid gland

Q. Which of the following disease occurs due to endocrine disorder?

1. Typhoid
2. Jaundice
3. Goitre
4. Pneumonia

Q.

Amino acid which takes part in the formation of thyroxine is

1. Thyroglobulin

2. Lysine

3. Iodine

4. Tyrosine

Q. Synthesis of thyroxine needs , and its deficiency leads to a condition known as .

1. iron
2. iodine
3. goitre
4. gigantism

Q.

Identify the glands in the image.

1. I – Parathyroid gland, II – Thyroid gland

2. I – Thyroid gland, II – Parathyroid gland

3. I – Thyroid gland, II – Pituitary gland

4. I – Pituitary gland, II – Parathyroid gland