Human Body Systems Quiz

What is the main function of the respiratory system?

• Exchange of oxygen and carbon dioxide

• Production of hormones

• Digestion of food

• Regulation of body temperature

Name the organ where gas exchange takes place in the respiratory system.

• Lungs

• Kidneys

• Stomach

• Liver

What is the role of the diaphragm in the respiratory system?

• It regulates body temperature by releasing sweat

• It supports the spine and helps in maintaining posture

• It helps in digestion by producing enzymes

• It helps in the process of breathing by contracting and relaxing to change the volume of the thoracic cavity.

What is the main function of the circulatory system?

• Producing red blood cells

• Transporting oxygen, nutrients, and hormones to cells throughout the body and removing waste products

• Regulating body temperature

• Storing excess nutrients

Name the four components of blood in the circulatory system.

• Red blood cells, white blood cells, platelets, and oxygen

• Plasma, platelets, bone marrow, and lymph nodes

• Red blood cells, white blood cells, platelets, and plasma

• Hemoglobin, antibodies, fibrinogen, and leukocytes

What is the function of the small intestine in the digestive system?

• Regulation of blood sugar levels

• Absorption of nutrients

• Storage of waste

• Production of stomach acid

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Name the enzyme responsible for breaking down carbohydrates in the digestive system.

• insulin

• protease

• lipase

• amylase

What is the role of the nervous system in the human body?

• Producing hormones and controlling metabolism

• Regulating body temperature and fluid balance

• Transmitting signals and coordinating bodily functions

• Digesting food and absorbing nutrients

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Name the three main parts of the brain in the nervous system.

• heart, lungs, liver

• spinal cord, nerves, neurons

• cerebrum, cerebellum, and brainstem

• stomach, intestines, pancreas

What is the main function of the endocrine system?

• Producing and circulating blood

• Controlling body temperature

• Regulating bodily functions through hormone production and release.

• Digesting food and absorbing nutrients