Biology

Endocrine and Exocrine Glands

690 Questions

The endocrine and exocrine glands topic explores the human body's essential secreting structures, including the pituitary, thyroid, and salivary glands. Questions often focus on gland locations, their specific secretions, and crucial physiological functions. This subject is a core component of the general science syllabus across many highly competitive examinations.

Master endocrine glandsPituitary gland locationSalivary gland functionsThyroid and ductless glandsApocrine sweat glands

Endocrine and Exocrine Glands Questions

Multiple choice
  1. Parathyroid gland

  2. Adrenal gland

  3. Pituitary gland

  4. Pancreas

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Pituitary gland influences the growth and functioning of thyroid gland. About the size of a pea, the pituitary gland is found at the base of the brain, behind the bridge of your nose. The pituitary gland is very close to another part of the brain, called the hypothalamus.  

Multiple choice
  1. Zona glomerulosa, zona fasciculata, zona reticularis

  2. Zona reticularis, zona glomerulosa, zona fasciculata

  3. Zona fasciculata, zona glomerulosa, zona reticularis

  4. Zona reticularis, zona fasciculata, zona glomerulosa

  5. Zona glomerulosa, zona reticularis, zona fasciculata

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Zona glomerulosa is the outermost layer of adrenal cortex. It is the major site for aldosterone synthesis and secretion, which is responsible for regulation of blood pressure. Zona fasciculata is the middle layer, which is responsible for secretion of glucocorticoids like cortisole, corticosterone, etc. The innermost layer is zona reticularis, which is responsible for secretion of androgens.

Multiple choice
  1. Meibomian glands

  2. Lacrimal glands

  3. Krause glands

  4. Wolfring glands

  5. Zeis glands

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The meibomian glands or tarsal glands are a special kind of sebaceous gland at the rim of the eyelids inside the tarsal plate, responsible for the supply of meibum which is an oily substance that prevents evaporation of the eye's tear film.

Multiple choice
  1. Meibomian glands

  2. Lacrimal glands

  3. Krause glands

  4. Wolfring glands

  5. Zeis glands

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Ciaccio glands or wolfring glands are small, tubular, accessory lacrimal glands found in the lacrimal caruncle of the eyelid. They are located in the upper border of the tarsus approximately in the middle between the extremities of the tarsal glands. Sometimes, they are situated slightly above the tarsus.

Multiple choice
  1. Only a and c

  2. Only b and c

  3. Only a and b

  4. Only b and d

  5. Only a and d

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is the correct option. Adrenal glands and hypothalamus do not have both exocrine and endocrine functions. Adrenal glands function only as endocrine glands and secrete adrenal hormones. Hypothalamus functions only as endocrine gland and regulates the functioning of the pituitary glands.

Multiple choice
  1. theria

  2. utheria

  3. metatheria

  4. prototheria

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Prototherians (monotremes like platypus and echidna) have mammary glands that lack nipples. Milk is secreted onto specialized skin patches and the young lap it up. Theria includes all live-bearing mammals, Eutheria are placental mammals (with nipples), and Metatheria are marsupials (also have nipples). Option B has a typo ('utheria' should be 'eutheria').