Unit 9-11 Human Organ Functions

Front

What is the primary function of the heart in the human body?

Back

The heart circulates blood throughout the body, supplying oxygen and nutrients to tissues and removing carbon dioxide and waste products.

Front

What are the main components of the circulatory system?

Back

The circulatory system includes the heart, blood vessels (arteries, veins, and capillaries), and blood.

Front

What role does the stomach play in digestion?

Back

The stomach mashes food into a liquid and mixes it with digestive juices to begin the process of digestion.

Front

What is the function of the human brain?

Back

The human brain controls muscle movement, processes sensory information, and is responsible for cognitive functions such as thinking and memory.

Front

What is the primary function of the large intestine?

Back

The large intestine absorbs water and minerals from indigestible food matter and compacts waste for elimination.

Front

What is the difference between arteries and veins?

Back

Arteries carry oxygenated blood away from the heart to the body, while veins carry deoxygenated blood back to the heart.

Front

What is the role of red blood cells in the circulatory system?

Back

Red blood cells transport oxygen from the lungs to the body's tissues and carry carbon dioxide back to the lungs for exhalation.

Front

How does the digestive system work with the circulatory system?

Back

The digestive system breaks down food into nutrients, which are then absorbed into the bloodstream by the circulatory system for distribution to the body's cells.

Front

What is the function of the kidneys in the human body?

Back

The kidneys filter blood to remove waste products and excess substances, regulating fluid balance and electrolytes.

Front

What is the significance of the diaphragm in respiration?

Back

The diaphragm is a muscle that contracts and relaxes to facilitate breathing by changing the pressure in the thoracic cavity.