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

Starting from the top and moving towards the bottom, which of the following is the correct sequence of glands in a human body?

  1. Pituitary gland, Thyroid gland, Thymus gland, Pancreas, Adrenal gland

  2. Pituitary gland, Thyroid gland, Thymus gland, Adrenal gland, Pancreas

  3. Pituitary gland, Thymus gland, Thyroid gland, Adrenal gland, Pancreas

  4. Thyroid gland, Pituitary gland, Thymus gland, Pancreas, Adrenal gland

  5. Pancreas, Thyroid gland, Thymus gland, Adrenal gland, Pituitary gland
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Yes, it is the correct answer. The correct sequence of glands in a human body from top to bottom is - Pituitary gland, Thyroid gland, Thymus gland, Adrenal gland, and Pancreas.

Multiple choice

Which of the following statements regarding pituitary gland is incorrect?

  1. It is divided anatomically into an adenohypophysis and a neurohypophysis.

  2. The pars distalis region of the pituitary, produces many hormones.

  3. Adenohypophysis consists of two portions, pars distalis and pars intermedia.

  4. Melanocyte and prolactin are secreted by Pars intermedia.

  5. The pars distalis region of the pituitary is commonly called the anterior pituitary.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is the incorrect statement and hence, the correct answer. Pars intermedia secretes only one hormone, i.e. melanocyte.

Multiple choice

Which of the following statements is/are incorrect regarding 'Islets of Langerhans'? (a) The exocrine pancreas consists of 'Islet of langerhans'. (b) There are about 1 to 2 million Islets of Langerhans in a normal human pancreas. (c) The two main types of cells in the Islet of Langerhans are called α-cells and β-cells. (d) The α-cells secrete a hormone called insulin, while the β-cells secrete glucagon.

  1. a, b, and d

  2. b, c, and d

  3. only d

  4. only a

  5. a and d
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Yes, it is correct. Statements a and d are incorrect. The endocrine pancreas consists of ‘Islets of Langerhans’. The α -cells secrete a hormone called glucagon, while the β-cells secrete insulin.

Multiple choice

Sublingual salivary gland lies

  1. superior to mylohyoid

  2. inferior to mylohyoid

  3. deep to geniohyoid

  4. in the vestibule
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The sublingual gland is the smallest of the main salivary glands. Each gland is narrow, flat, shaped like an almond and weighs 4 g. The sublingual gland lies on mylohyoid and is covered by the mucosa of the floor of the mouth, which is raised as a sublingual fold.