Biology · 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 zoology endocrine system and chemical co-ordination gastrointestinal tract and liver hormones of heart, kidney, liver and gastrointestinal tract coordination in human beings- chemical control

Point out the odd one:

  1. Cortiocotropin

  2. vasopressin

  3. Noradrenaline

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

Corticotropin, vasopressin, and prolactin are peptide hormones produced by the pituitary gland, whereas noradrenaline is an amine hormone secreted by the adrenal medulla and sympathetic nervous system.

Multiple choice zoology endocrine system and chemical co-ordination gastrointestinal tract and liver hormones of heart, kidney, liver and gastrointestinal tract coordination in human beings- chemical control

First discovered hormone

  1. Thyroxine

  2. Adrenaline

  3. Secretin

  4. Insulin
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Wm. M. Bayliss and Ernest H. Starling  discovered  secretin, the first hormone, in 1902. They discovered this hormone when they were studying the pancreatic secretion. Secretin hormone stimulates the pancreas to secrete digestive fluid.

Multiple choice

What is the primary mechanism of action of octreotide?

  1. Inhibits growth hormone production

  2. Stimulates growth hormone production

  3. Inhibits prolactin production

  4. Stimulates prolactin production
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Octreotide inhibits growth hormone production and is used to treat acromegaly.

Multiple choice

Which hormone, primarily produced during sleep, plays a crucial role in muscle growth and repair?

  1. Estrogen

  2. Testosterone

  3. Insulin

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

Testosterone, a hormone produced during sleep, is essential for muscle growth, repair, and maintenance.

Multiple choice

Which hormone, produced by the adrenal glands, is released in response to stress and can interfere with sleep?

  1. Estrogen

  2. Testosterone

  3. Insulin

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

Cortisol, released in response to stress, can disrupt sleep patterns and lead to sleep disturbances.

Multiple choice

What is the most important factor in determining the success of endocrine surgery?

  1. The skill of the surgeon

  2. The type of surgery

  3. The patient's overall health

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The success of endocrine surgery depends on a variety of factors, including the skill of the surgeon, the type of surgery, and the patient's overall health.

Multiple choice

Which hormone is responsible for regulating blood sugar levels in the body?

  1. Insulin

  2. Glucagon

  3. Estrogen

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

Insulin, produced by the pancreas, is responsible for regulating blood sugar levels by facilitating the uptake of glucose from the blood into cells.

Multiple choice

Which hormone is responsible for stimulating the production of milk in lactating women?

  1. Prolactin

  2. Estrogen

  3. Testosterone

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

Prolactin is the hormone responsible for stimulating the production of milk in lactating women.

Multiple choice

Which hormone is responsible for regulating growth and development in children?

  1. Estrogen

  2. Progesterone

  3. Thyroxine

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

Growth hormone, also known as somatotropin, is a hormone produced by the pituitary gland that plays a crucial role in regulating growth and development in children.

Multiple choice

Which hormone is responsible for regulating blood sugar levels in the body?

  1. Epinephrine

  2. Insulin

  3. Glucagon

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

Insulin, a hormone produced by the pancreas, plays a crucial role in regulating blood sugar levels by allowing glucose to enter cells for energy production.

Multiple choice

Which brain structure is responsible for producing hormones that regulate growth, metabolism, and reproduction?

  1. Pituitary Gland

  2. Hypothalamus

  3. Pineal Gland

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

The pituitary gland, located at the base of the brain, produces hormones that regulate various bodily functions, including growth, metabolism, and reproduction.

Multiple choice

Which brain structure is responsible for producing melatonin, a hormone that regulates sleep-wake cycles?

  1. Pituitary Gland

  2. Hypothalamus

  3. Pineal Gland

  4. Thyroid Gland
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The pineal gland, located deep within the brain, produces melatonin, a hormone that regulates sleep-wake cycles and helps maintain the body's circadian rhythm.

Multiple choice

Which hormone is responsible for the release of triglycerides from adipose tissue?

  1. Insulin

  2. Glucagon

  3. Epinephrine

  4. Thyroxine
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Epinephrine is a hormone that stimulates the release of triglycerides from adipose tissue into the bloodstream.

Multiple choice

Which hormone is primarily responsible for maintaining the corpus luteum and supporting the early stages of pregnancy?

  1. Estrogen

  2. Progesterone

  3. Human Chorionic Gonadotropin (hCG)

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

Progesterone plays a crucial role in maintaining the corpus luteum, which produces progesterone and estrogen necessary for the early stages of pregnancy.

Multiple choice

Which hormone is responsible for stimulating milk production in the mammary glands?

  1. Estrogen

  2. Progesterone

  3. Prolactin

  4. Oxytocin
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Prolactin is the primary hormone responsible for stimulating milk production in the mammary glands during pregnancy and after childbirth.