Biology · General Awareness

Human Endocrine System

1,530 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

In man, PTH or parathyroid hormone

  1. reduces blood calcium level

  2. stimulates calcitonin release

  3. is produced by the thyroid gland

  4. is released when blood calcium level falls
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In man, PTH or parathyroid hormone is released when blood calcium level falls.

Multiple choice

The hormone produced in thyroid is ______.

  1. insulin

  2. oestrogen

  3. progesterone

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

The thyroid gland primarily produces thyroxine (T4) and triiodothyronine (T3), collectively called thyroid hormones. Insulin is produced by the pancreas, while estrogen and progesterone are produced by the ovaries.

Multiple choice

The hormone produced by the stomach is

  1. Ghrelin

  2. Cholecystokinin

  3. Peptide

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

Ghrelin is produced in the stomach and upper intestine in the absence of food in the digestive system and stimulates appetite.

Multiple choice

Which of the following hormones is important during emergency?

  1. Aldosterone

  2. Adrenaline

  3. Thyroxine

  4. Calcitonin

  5. -
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Adrenaline is released in the body of a person who is feeling strong emotions (such as excitement, fear or anger) and it causes the heart to beat faster. It is also called the stress hormone. It is secreted from adrenal medulla.

Multiple choice

Alloxan destroys which of the following?

  1. STH cells

  2. Beta cells of islets of Langerhans

  3. Cells of Sertoli

  4. Cells of Leydig

  5. -
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Alloxan is widely used to induce experimental diabetes in animals as it destroys beta cells of islets of Langerhans.