About Endocrine System

Following are some of the multiple choice questions on the Endocrine System with answers that will help the students in developing their knowledge.

Endocrine System MCQ

1. The hormone secreted by the adrenal medulla in response to a stressor is:

  • Aldosterone
  • Cortisol
  • Epinephrine
  • ACTH

2. Which of the following is a unique function of Cortisol?

  • Reduce Inflammation
  • Increase blood glucose
  • Dilate air passage ways
  • Increase heart beat

3. Hormones that enter cells directly to cause changes are usually:

  • Steroids
  • Proteins

4. Which of the following is the function of the endocrine system?

  • Control all the other body systems
  • Exchange carbon dioxide and oxygen
  • Transport nutrients, hormones and wastes through the body
  • Help the nervous system maintain homeostasis in the body.

5. Which of the following is NOT a major endocrine gland.

  • pituitary
  • hypothalymus
  • sweat gland
  • ovaries

6. Which gland is the connection between the nervous system and endocrine system?

  • pineal
  • pituitary
  • hypothalamus
  • adrenal

7. Which gland controls the rate at which the body produces energy from nutrients (metabolism)?

  • Thyroid
  • Parathyroid

8. Which gland increases immune response?

  • Thymus
  • Pancreas

9. Which gland helps to react to danger with a fight or flight response?

  • Adrenal
  • Pancreas

10. Which gland lowers blood glucose levels?

  • Pancreas
  • Adrenal

11. Which gland makes insulin?

  • Pancreas
  • Thymus

12. What is the main function of the endocrine system?

  • It creates chemicals, or hormones, that are sent around the body to maintain homeostasis.
  • It creates electrical messages that are sent around the body to maintain homeostasis.
  • It maintains the correct level of oxygen in the body to maintain homeostasis.
  • It releases waste from the body to maintain homeostasis.

13. A word that describes the normal, balanced, steady way your body works:

  • Hormones
  • Glands
  • Homeostasis
  • Melatonin

14. Which system does the pancreas help to break down food?

  • Respiratory
  • Nervous
  • Digestive
  • Endocrine

15. Controls glucose levels in blood

  • Parathyroid
  • Pancreas
  • Pituitary gland
  • Hypothalamus

16. Endocrine glands produce __________ which maintain the body in homeostasis

  • oils
  • neurotransmitters 
  • tears
  • hormones

17. Targets bone and muscle to promote growth and development

  • growth hormone
  • prolactin
  • oxytocin
  • ADH (antidiuretic hormone)

18. Targets the brain and make people sleepy when its dark

  • melanin
  • melanoma
  • melatonin
  • melons

19. A disease by which people cannot control sugar levels in the blood

  • hypertension
  • sleep apnea
  • diabetes
  • hyperthyroidism

20. Which of the following is a function of the Endocrine System?

  • growth and development
  • maintaining homeostasis
  • response to stress and injury
  • all of the above

21. What type of product is secreted by endocrine glands?

  • Sweat
  • Hormones
  • Saliva
  • Tears

22. Where are the adrenal glands located?

  • One on each side of the larynx
  • On top of the kidneys
  • Behind the orbital bone
  • The inner ear

23. Are chemicals that travel in the blood and cause changes in different parts of the body

  • Hormones
  • Glands
  • Parathyroid 
  • Adrenal Gland 

24. These release testosterone, which controls changes in a male's body and regulates sperm production.

  • Ovaries
  • Target Cells
  • Parathyroids
  • Testes

25. Produces the hormone insulin and glucagon, which controls the level of glucose in the blood.

  • Thyroid Gland
  • Pancreas
  • Thymus Gland
  • Pituitary Gland

26. If you have diabetes, you most likely have a problem with this hormone.

  • ADH
  • Glucagon
  • Insulin
  • PTH

27. An organ found in the neck that regulates metabolism is called:

  • Thymus
  • Thyroid
  • Hypothalamus
  • Testes

28. Adrenaline is secreted from which gland?

  • The Kidneys
  • The Adrenal Gland
  • The Pituitary Gland
  • The Parathyroid Gland

29. Glucose levels in the blood are controlled by the:

  • Pancreas
  • Thyroid
  • Parathyroids
  • Adrenal Glands

30. A _________________ is a chemical message sent by a gland in the endocrine system.

  • hormone
  • Lungs
  • Glands
  • none of the above

31. What is the function of the glands in the endocrine system?

  • Act as a messenger to the cell
  • Sends information through the nerves
  • Monitors the bloodstream for chemical imbalances and releases hormones
  • Removes liquid waste from the body

32. Which of the following terms means insufficient sugar in the blood?

  • hypercalcemia
  • hyponatremia
  • hyperkalemia
  • hypoglycemia

33. Which of the following hormones is NOT secreted by the anterior pituitary?

  • GH
  • oxytocin
  • TSH
  • PRL

34. Which hormone promotes the kidneys to reabsorb water?

  • oxytocin
  • LH
  • ADH
  • PRL

35. The thyroid gland uses which of the following elements to make its hormones?

  • calcium
  • potassium
  • idodine
  • sodium

36. Which of the following conditions is characterized by being abnormally short in height?

  • dwarfism
  • cretinism
  • acromegaly
  • gigantism

37. An enlargement of the thyroid gland is called:

  • insulinoma
  • goiter
  • adenocarcinoma
  • myxedema

38. What do parathyroids regulate in the body?

  • Growth hormone
  • Calcium
  • Antidiuretic
  • Sodium

39. What does FSH stand for?

  • Fat Shoe House
  • Fatigued Side Head
  • Follicle-Stimulating Hormone
  • Fear-Stimulating Hormone

40. Which is not a function of the endocrine system?

  • Filters blood to remove waste
  • Maintains mood
  • Controls metabolism
  • Regulates chemical levels in the bloodstream

41. How are hormones moved through the body?

  • Through airways
  • Through skin
  • Through the blood
  • none of the above

42. ______ are chemical messengers that communicate information with certain target cells.

  • Glands
  • Hormones
  • Tissues
  • Neurons

43. Which is not a part of the endocrine system?

  • Pancreas
  • Hormones
  • Glands
  • Lungs

44. Which of these activities is related to the endocrine system?

  • Filtering the blood to remove unwanted waste
  • Maintaining chemical balances within the body
  • Exchanging carbon dioxide for oxygen
  • Controlling and sending all electrical impulses to our nerves

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