MCQs on the human body, along with their answers
- Which organ is responsible for pumping blood throughout the body?
a) Brain
b) Stomach
c) Heart
d) Liver
Answer: c) Heart - What is the largest organ in the human body?
a) Brain
b) Skin
c) Heart
d) Liver
Answer: b) Skin - Which part of the brain controls balance and coordination?
a) Cerebrum
b) Cerebellum
c) Medulla
d) Thalamus
Answer: b) Cerebellum - What is the primary function of red blood cells?
a) Fight infection
b) Carry oxygen
c) Clot blood
d) Produce hormones
Answer: b) Carry oxygen - Which part of the digestive system is responsible for absorbing nutrients?
a) Stomach
b) Small intestine
c) Large intestine
d) Esophagus
Answer: b) Small intestine - Which bone is the longest in the human body?
a) Femur
b) Tibia
c) Humerus
d) Radius
Answer: a) Femur - What is the primary function of the kidneys?
a) Digest food
b) Pump blood
c) Filter waste from the blood
d) Produce insulin
Answer: c) Filter waste from the blood - Which system of the body is responsible for producing hormones?
a) Nervous system
b) Digestive system
c) Endocrine system
d) Circulatory system
Answer: c) Endocrine system - What is the function of the lungs in the human body?
a) Pump oxygen into the body
b) Remove carbon dioxide from the body
c) Digestion of food
d) Production of blood cells
Answer: b) Remove carbon dioxide from the body - What is the largest artery in the human body?
a) Jugular vein
b) Aorta
c) Pulmonary artery
d) Femoral artery
Answer: b) Aorta - Which organ produces insulin?
a) Kidney
b) Pancreas
c) Liver
d) Stomach
Answer: b) Pancreas - Which type of muscle is responsible for voluntary movements?
a) Smooth muscle
b) Cardiac muscle
c) Skeletal muscle
d) Tendons
Answer: c) Skeletal muscle - How many bones are in the adult human body?
a) 206
b) 305
c) 200
d) 312
Answer: a) 206 - Which part of the brain controls basic functions such as heartbeat and breathing?
a) Cerebrum
b) Cerebellum
c) Medulla Oblongata
d) Pons
Answer: c) Medulla Oblongata - Which of the following is responsible for carrying electrical signals in the body?
a) Red blood cells
b) Nerves
c) Platelets
d) White blood cells
Answer: b) Nerves - Which blood type is known as the universal donor?
a) A
b) B
c) AB
d) O
Answer: d) O - What is the name of the pigment responsible for the color of human skin?
a) Hemoglobin
b) Keratin
c) Melanin
d) Collagen
Answer: c) Melanin - Which structure in the eye controls the amount of light entering?
a) Retina
b) Cornea
c) Pupil
d) Lens
Answer: c) Pupil - What is the main function of the lymphatic system?
a) Transport oxygen
b) Filter toxins
c) Defend the body against infection
d) Circulate blood
Answer: c) Defend the body against infection - Which part of the body is responsible for producing bile?
a) Liver
b) Stomach
c) Pancreas
d) Large intestine
Answer: a) Liver - Which part of the brain is responsible for reasoning and decision-making?
a) Cerebellum
b) Cerebrum
c) Hypothalamus
d) Medulla
Answer: b) Cerebrum - Which part of the human body produces sweat?
a) Sweat glands
b) Kidneys
c) Heart
d) Lungs
Answer: a) Sweat glands - Which body system is responsible for protecting the body from harmful substances and pathogens?
a) Nervous system
b) Immune system
c) Circulatory system
d) Respiratory system
Answer: b) Immune system - What is the function of platelets in the blood?
a) Carry oxygen
b) Fight infections
c) Help with blood clotting
d) Break down waste
Answer: c) Help with blood clotting - What is the smallest bone in the human body?
a) Stapes (ear bone)
b) Phalanges
c) Femur
d) Radius
Answer: a) Stapes (ear bone) - Which of the following organs is responsible for detoxifying harmful substances in the body?
a) Kidney
b) Brain
c) Liver
d) Heart
Answer: c) Liver - Which part of the human body contains the pituitary gland?
a) Brain
b) Neck
c) Abdomen
d) Pelvis
Answer: a) Brain - Which of the following is not a function of the skeletal system?
a) Provide support
b) Protect organs
c) Produce hormones
d) Store minerals
Answer: c) Produce hormones - Which of the following organs is part of both the digestive and endocrine systems?
a) Liver
b) Stomach
c) Pancreas
d) Kidney
Answer: c) Pancreas - What type of blood vessels carry oxygen-rich blood from the heart to the body?
a) Veins
b) Arteries
c) Capillaries
d) Lymphatic vessels
Answer: b) Arteries
These questions cover a variety of topics related to the human body, from anatomy to physiology, and can help deepen your understanding of the body’s functions.
