Biology ยท General Awareness

Human Endocrine System

1,395 Questions

The human endocrine system comprises glands that secrete hormones to regulate bodily functions like metabolism, growth, and reproduction. Competitive exams frequently test the specific roles of hormones such as adrenaline, insulin, and progesterone. Use these questions to master the locations and functions of different hormones.

Hormone functionsIslets of LangerhansFight or flight responseBlood pressure regulationFemale sex hormonesWater soluble hormones

Human Endocrine System Questions

Multiple choice

Which hormone is produced by the adrenal glands?

  1. Epinephrine

  2. Insulin

  3. Thyroxine

  4. Progesterone
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The adrenal glands produce epinephrine, also known as adrenaline, which prepares the body for physical and emotional stress.

Multiple choice

Which hormone is produced by the pituitary gland?

  1. Epinephrine

  2. Insulin

  3. Thyroxine

  4. Growth Hormone
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The pituitary gland produces growth hormone, which regulates growth and development in the body.

Multiple choice

Which hormone is responsible for regulating blood sugar levels and is often affected by stress?

  1. Glucagon

  2. Insulin

  3. Epinephrine

  4. Progesterone
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Insulin, produced by the pancreas, is responsible for regulating blood sugar levels. Stress can disrupt insulin production and sensitivity, potentially leading to insulin resistance and an increased risk of type 2 diabetes.

Multiple choice

Which hormone is primarily responsible for regulating growth and development?

  1. Epinephrine

  2. Thyroxine

  3. Prolactin

  4. Glucagon
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Thyroxine, produced by the thyroid gland, is a crucial hormone involved in regulating metabolism, growth, and development.

Multiple choice

Which hormone is primarily responsible for regulating the body's response to stress and is often referred to as the 'fight-or-flight' hormone?

  1. Epinephrine

  2. Insulin

  3. Thyroxine

  4. Progesterone
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Epinephrine, also known as adrenaline, is the primary stress hormone released by the adrenal glands in response to stressful situations, preparing the body for the 'fight-or-flight' response.

Multiple choice

Chronic stress can lead to an imbalance in which hormone, potentially resulting in reproductive issues and menstrual irregularities?

  1. Estrogen

  2. Insulin

  3. Thyroxine

  4. Progesterone
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Chronic stress can disrupt the production of estrogen, a hormone crucial for reproductive health and menstrual regularity. This imbalance can lead to various reproductive issues, including menstrual irregularities and fertility problems.

Multiple choice

Which hormone is primarily responsible for regulating metabolism and energy expenditure?

  1. Thyroxine

  2. Insulin

  3. Epinephrine

  4. Progesterone
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Thyroxine, produced by the thyroid gland, is a hormone that plays a crucial role in regulating metabolism, energy expenditure, and growth.

Multiple choice

Chronic stress can lead to an imbalance in which hormone, potentially resulting in bone loss and osteoporosis?

  1. Estrogen

  2. Insulin

  3. Thyroxine

  4. Progesterone
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Chronic stress can disrupt the production of estrogen, a hormone crucial for bone health. This imbalance can lead to bone loss and an increased risk of osteoporosis, especially in postmenopausal women.

Multiple choice

Which hormone is produced by the adenohypophysis and is essential for growth and development?

  1. Growth hormone (GH)

  2. Prolactin (PRL)

  3. Adrenocorticotropic hormone (ACTH)

  4. Thyroid-stimulating hormone (TSH)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Growth hormone (GH), also known as somatotropin, is produced by the adenohypophysis and plays a crucial role in growth and development, particularly in children and adolescents.

Multiple choice

Which hormone is produced by the adenohypophysis and is responsible for stimulating the production of milk in lactating women?

  1. Growth hormone (GH)

  2. Prolactin (PRL)

  3. Adrenocorticotropic hormone (ACTH)

  4. Thyroid-stimulating hormone (TSH)
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Prolactin (PRL) is produced by the adenohypophysis and is essential for stimulating milk production in lactating women.

Multiple choice

Which hormone is produced by the adenohypophysis and is responsible for stimulating the production of cortisol by the adrenal glands?

  1. Growth hormone (GH)

  2. Prolactin (PRL)

  3. Adrenocorticotropic hormone (ACTH)

  4. Thyroid-stimulating hormone (TSH)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Adrenocorticotropic hormone (ACTH) is produced by the adenohypophysis and stimulates the production of cortisol by the adrenal glands, which is essential for stress response and energy metabolism.

Multiple choice

Which hormone is produced by the adenohypophysis and is responsible for stimulating the production of thyroid hormones by the thyroid gland?

  1. Growth hormone (GH)

  2. Prolactin (PRL)

  3. Adrenocorticotropic hormone (ACTH)

  4. Thyroid-stimulating hormone (TSH)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Thyroid-stimulating hormone (TSH), also known as thyrotropin, is produced by the adenohypophysis and stimulates the production of thyroid hormones by the thyroid gland, which are essential for metabolism and energy production.

Multiple choice

The neurohypophysis, also known as the posterior pituitary, is responsible for storing and releasing two hormones. Which of the following hormones is not stored in the neurohypophysis?

  1. Antidiuretic hormone (ADH)

  2. Oxytocin

  3. Growth hormone (GH)

  4. Prolactin (PRL)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Growth hormone (GH) is not stored in the neurohypophysis. It is produced and stored in the adenohypophysis.

Multiple choice

Antidiuretic hormone (ADH), also known as vasopressin, is produced by the hypothalamus and stored in the neurohypophysis. What is the primary function of ADH?

  1. Regulating blood pressure

  2. Stimulating milk production

  3. Promoting growth and development

  4. Conserving water in the body
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Antidiuretic hormone (ADH) is primarily responsible for conserving water in the body by reducing urine output and increasing water reabsorption in the kidneys.

Multiple choice

Which test measures the level of thyroid-stimulating hormone (TSH) in the blood?

  1. Thyroid Function Test (TFT)

  2. Free Thyroxine (FT4) Test

  3. Triiodothyronine (T3) Test

  4. Thyroid-Stimulating Hormone (TSH) Test
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The TSH test is primarily used to assess thyroid function by measuring the level of TSH, which is produced by the pituitary gland to regulate thyroid hormone production.