Human Body Organs Mcqs Page 2

Human Body Organs Mcqs

21- The human heart has how many chambers ?

A. 1

B. 2

C. 3

D. 4

View Answer

Answer : D. 4

Description

22- The oxygen-rich blood is carried from the lungs to the heart by the ?

A. Vena cava

B. Aorta

C. Pulmonary artery

D. Pulmonary vein

View Answer

Answer : D. Pulmonary vein

Description

23- The largest artery in the human body is ?

A. Aorta

B. Carotid artery

C. Coronary artery

D. Pulmonary artery

View Answer

Answer : A. Aorta

Description

24- What is the function of red blood cells ?

A. Fight infections

B. Carry oxygen

C. Help in clotting

D. Transport hormones

View Answer

Answer : B. Carry oxygen

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25- Which blood vessels carry blood away from the heart ?

A. Lymphatic vessels

B. Capillaries

C. Veins

D. Arteries

View Answer

Answer : D. Arteries

Description

26- The primary function of the stomach is to ?

A. Absorb water

B. Digest proteins

C. Filter waste

D. Produce insulin

View Answer

Answer : B. Digest proteins

Description

27- The longest part of the digestive system is the ?

A. Stomach

B. Large intestine

C. Esophagus

D. Small intestine

View Answer

Answer : D. Small intestine

Description

28- The liver produces which digestive fluid ?

A. Mucus

B. Bile

C. Gastric juice

D. Saliva

View Answer

Answer : B. Bile

Description

29- Which organ stores bile before it is released into the small intestine ?

A. Gallbladder

B. Liver

C. Stomach

D. Pancreas

View Answer

Answer : A. Gallbladder

Description

30- The enzyme amylase, which helps digest carbohydrates, is found in ?

A. Stomach

B. Liver

C. Saliva

D. Pancreas

View Answer

Answer : D. Pancreas

Description

31- The primary function of the lungs is ?

A. Pumping blood

B. Producing hormones

C. Filtering waste

D. Exchanging oxygen and carbon dioxide

View Answer

Answer : D. Exchanging oxygen and carbon dioxide

Description

32- The trachea is also known as the ?

A. Food pipe

B. Windpipe

C. Voice box

D. Breathing sac

View Answer

Answer : B. Windpipe

Description

33- The diaphragm plays a key role in ?

A. Breathing

B. Digestion

C. Circulation

D. Excretion

View Answer

Answer : A. Breathing

Description

34- The exchange of gases in the lungs occurs in the ?

A. Trachea

B. Bronchi

C. Alveoli

D. Diaphragm

View Answer

Answer : C. Alveoli

Description

35- Oxygen is transported in the blood by ?

A. Platelets

B. Plasma

C. White blood cells

D. Red blood cells

View Answer

Answer : D. Red blood cells

Description

36- The main function of the kidneys is to ?

A. Produce insulin

B. Filter waste from the blood

C. Absorb nutrients

D. Pump blood

View Answer

Answer : B. Filter waste from the blood

Description

37- Urine is stored in which organ before excretion ?

A. Bladder

B. Kidney

C. Ureter

D. Liver

View Answer

Answer : A. Bladder

Description

38- The functional unit of the kidney is called ?

A. Nephron

B. Neuron

C. Alveolus

D. Villus

View Answer

Answer : A. Nephron

Description

39- Which waste product is excreted by the kidneys ?

A. Carbon dioxide

B. Bile

C. Urea

D. Oxygen

View Answer

Answer : C. Urea

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40- The skin helps in excretion by removing ?

A. Carbon dioxide

B. Sweat

C. Urine

D. Bile

View Answer

Answer : B. Sweat

Description