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CSS - PMS - CCE - PCS - General Science Practice

Human Organs – Major Organs, Functions, Systems & Important Facts MCQs

Study the major organs of the human body, their locations, functions and related organ systems. This topic covers the heart, brain, lungs, liver, kidneys, stomach, intestines, pancreas, spleen, skin and other important organs. Specially prepared for CSS, PMS, CCE, PCS, FPSC, PPSC and General Science competitive exams with exam-focused facts and MCQs.

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Human Organs – Major Organs, Functions, Systems & Important Facts

Human Organs – Major Organs, Functions, Systems & Important Facts MCQs With Answers

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CSS - PMS - CCE - PCS - General Science Organs
Which organ contains gastric glands?
A. Stomach
B. Liver
C. Spleen
D. Colon
Read Theory
Correct Answer: A
Gastric glands in the stomach mucosa produce acid, enzymes and other secretions.
CSS - PMS - CCE - PCS - General Science Organs
Which organ contains villi that greatly increase absorptive surface area?
A. Small intestine
B. Stomach
C. Esophagus
D. Large intestine
Read Theory
Correct Answer: A
Villi and microvilli greatly increase the surface area of the small intestine.
CSS - PMS - CCE - PCS - General Science Organs
Which organ contains glomeruli?
A. Kidney
B. Liver
C. Lung
D. Brain
Read Theory
Correct Answer: A
Glomeruli are capillary tufts within nephrons where blood filtration begins.
CSS - PMS - CCE - PCS - General Science Organs
Which organ has Kupffer cells that help remove microorganisms and debris from blood?
A. Liver
B. Kidney
C. Lung
D. Pancreas
Read Theory
Correct Answer: A
Kupffer cells are specialized macrophages in liver sinusoids.
CSS - PMS - CCE - PCS - General Science Organs
Which organ contains the islets of Langerhans?
A. Pancreas
B. Liver
C. Spleen
D. Kidney
Read Theory
Correct Answer: A
The islets of Langerhans are endocrine clusters within the pancreas.
CSS - PMS - CCE - PCS - General Science Organs
Which organ releases oxytocin into the bloodstream?
A. Posterior pituitary
B. Thyroid
C. Adrenal cortex
D. Pancreas
Read Theory
Correct Answer: A
Oxytocin is synthesized in the hypothalamus and released from the posterior pituitary.
CSS - PMS - CCE - PCS - General Science Organs
Which organ primarily produces growth hormone?
A. Pituitary gland
B. Thyroid gland
C. Adrenal gland
D. Pancreas
Read Theory
Correct Answer: A
Growth hormone is secreted by the anterior pituitary.
CSS - PMS - CCE - PCS - General Science Organs
Which organ primarily produces cortisol?
A. Adrenal cortex
B. Pancreas
C. Pituitary
D. Thyroid
Read Theory
Correct Answer: A
Cortisol is produced in the adrenal cortex.
CSS - PMS - CCE - PCS - General Science Organs
Which organ primarily produces the hormone thyroxine?
A. Thyroid gland
B. Pituitary gland
C. Adrenal gland
D. Thymus
Read Theory
Correct Answer: A
Thyroxine (T4) is produced by the thyroid gland.
CSS - PMS - CCE - PCS - General Science Organs
Which organ is a major reservoir for blood and platelets?
A. Spleen
B. Thyroid
C. Bladder
D. Pancreas
Read Theory
Correct Answer: A
The spleen can sequester platelets and acts as a blood reservoir to a limited extent.
CSS - PMS - CCE - PCS - General Science Organs
Which organ stores concentrated bile between meals?
A. Gallbladder
B. Liver
C. Pancreas
D. Duodenum
Read Theory
Correct Answer: A
The gallbladder stores and concentrates bile between meals.
CSS - PMS - CCE - PCS - General Science Organs
Which organ produces digestive bile salts?
A. Liver
B. Pancreas
C. Stomach
D. Spleen
Read Theory
Correct Answer: A
Bile salts are synthesized in the liver from cholesterol.
CSS - PMS - CCE - PCS - General Science Organs
Which organ plays the major role in oxygenating blood?
A. Lungs
B. Liver
C. Kidneys
D. Pancreas
Read Theory
Correct Answer: A
Blood becomes oxygenated as it passes through pulmonary capillaries surrounding the alveoli.
CSS - PMS - CCE - PCS - General Science Organs
Which organ removes carbon dioxide from the blood?
A. Lungs
B. Kidneys
C. Liver
D. Spleen
Read Theory
Correct Answer: A
The lungs excrete carbon dioxide during respiration.
CSS - PMS - CCE - PCS - General Science Organs
Cystitis affects which organ?
A. Urinary bladder
B. Kidney
C. Lung
D. Liver
Read Theory
Correct Answer: A
Cystitis is inflammation of the urinary bladder, commonly due to infection.
CSS - PMS - CCE - PCS - General Science Organs
Encephalitis primarily affects which organ?
A. Brain
B. Heart
C. Liver
D. Kidney
Read Theory
Correct Answer: A
Encephalitis is inflammation of brain tissue.
CSS - PMS - CCE - PCS - General Science Organs
Cholecystitis affects which organ?
A. Gallbladder
B. Kidney
C. Stomach
D. Spleen
Read Theory
Correct Answer: A
Cholecystitis is inflammation of the gallbladder.
CSS - PMS - CCE - PCS - General Science Organs
Appendicitis affects which structure?
A. Appendix
B. Gallbladder
C. Pancreas
D. Spleen
Read Theory
Correct Answer: A
Appendicitis is inflammation of the vermiform appendix.
CSS - PMS - CCE - PCS - General Science Organs
Pancreatitis affects which organ?
A. Pancreas
B. Spleen
C. Liver
D. Gallbladder only
Read Theory
Correct Answer: A
Pancreatitis is inflammation of the pancreas.
CSS - PMS - CCE - PCS - General Science Organs
Gastritis is inflammation of which organ?
A. Stomach
B. Liver
C. Spleen
D. Pancreas
Read Theory
Correct Answer: A
Gastritis is inflammation of the stomach lining.
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