Human Body Organs Mcqs 1- Which is the largest internal organ in the human body ? A. HeartB. LiverC. LungsD. Brain View Answer Answer : B. Liver Description 2- The organ responsible for pumping blood throughout the body is ? A. BrainB. LungsC. KidneyD. Heart View Answer Answer : D. Heart Description 3- Which organ is known as the "control center" of the body ? A. BrainB. HeartC. LiverD. Kidney View Answer Answer : A. Brain Description 4- The human body has how many kidneys ? A. OneB. TwoC. ThreeD. Four View Answer Answer : B. Two Description 5- The function of the small intestine is to ? A. Store bileB. Absorb nutrientsC. Filter wasteD. Produce insulin View Answer Answer : B. Absorb nutrients Description 6- Which organ detoxifies harmful substances in the blood ? A. SpleenB. KidneyC. LiverD. Pancreas View Answer Answer : C. Liver Description 7- The largest bone in the human body is located in which organ system ? A. Nervous systemB. Muscular systemC. Skeletal systemD. Digestive system View Answer Answer : C. Skeletal system Description 8- The skin is considered the __________ organ of the human body. A. LargestB. WeakestC. Most sensitiveD. Smallest View Answer Answer : A. Largest Description 9- Which organ produces insulin ? A. LiverB. KidneyC. PancreasD. Spleen View Answer Answer : C. Pancreas Description 10- The lungs are primarily responsible for ? A. Filtering bloodB. Oxygen exchangeC. Pumping bloodD. Producing hormones View Answer Answer : B. Oxygen exchange Description 11- What is the main function of the kidneys ? A. Producing bileB. Filtering blood and removing wasteC. Breaking down foodD. Regulating body temperature View Answer Answer : B. Filtering blood and removing waste Description 12- The human brain is divided into how many main parts ? A. OneB. TwoC. ThreeD. Four View Answer Answer : C. Three (Cerebrum, Cerebellum, and Brainstem) Description 13- The stomach secretes which type of acid to help in digestion ? A. Hydrochloric acidB. Acetic acidC. Sulfuric acidD. Nitric acid View Answer Answer : A. Hydrochloric acid Description 14- Which organ is part of both the digestive and endocrine systems ? A. KidneyB. SpleenC. LiverD. Pancreas View Answer Answer : D. Pancreas Description 15- Which organ is responsible for producing red blood cells ? A. HeartB. LiverC. Bone marrowD. Spleen View Answer Answer : C. Bone marrow Description 16- Which part of the brain controls balance and coordination ? A. CerebrumB. CerebellumC. Medulla oblongataD. Hypothalamus View Answer Answer : B. Cerebellum Description 17- The central nervous system (CNS) consists of ? A. Brain and spinal cordB. Brain and nervesC. Spinal cord and nervesD. Heart and lungs View Answer Answer : A. Brain and spinal cord Description 18- The hypothalamus is responsible for regulating ? A. Blood circulationB. Body temperature and hungerC. Reflex actionsD. Oxygen supply View Answer Answer : B. Body temperature and hunger Description 19- Which part of the brain is responsible for memory and thinking ? A. MedullaB. CerebellumC. CerebrumD. Thalamus View Answer Answer : C. Cerebrum Description 20- The spinal cord is protected by ? A. SkullB. Vertebral columnC. RibsD. Pelvis View Answer Answer : B. Vertebral column Description 1 2 3