Human Body - Major Organs

Front

What is the main function of the brain in the human body?

Back

The brain is responsible for processing sensory information, controlling motor functions, regulating bodily functions, and enabling cognitive abilities such as thinking, memory, and emotion.

Front

What role does the small intestine play in digestion?

Back

The small intestine is responsible for the majority of nutrient absorption during digestion. It breaks down food with enzymes and absorbs nutrients into the bloodstream.

Front

What is the primary function of the heart?

Back

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

Front

What are the main functions of the lungs?

Back

The lungs facilitate gas exchange, allowing oxygen to enter the bloodstream and carbon dioxide to be expelled from the body.

Front

What is the composition of bones in the human body?

Back

Bones are primarily composed of collagen (a protein) and minerals, mainly calcium phosphate, which provide strength and structure.

Front

How do the brain and heart communicate with each other?

Back

The brain communicates with the heart through the autonomic nervous system, which regulates heart rate and blood pressure based on the body's needs.

Front

What is the significance of the diaphragm in respiration?

Back

The diaphragm is a muscle that separates the chest cavity from the abdominal cavity and plays a crucial role in breathing by contracting and relaxing to allow air in and out of the lungs.

Front

What are the different types of bones in the human body?

Back

There are four main types of bones: long bones (e.g., femur), short bones (e.g., carpals), flat bones (e.g., skull), and irregular bones (e.g., vertebrae).

Front

What is the protective function of the skull?

Back

The skull protects the brain from injury and provides structure to the face.

Front

How does the small intestine increase its surface area for absorption?

Back

The small intestine has folds, villi, and microvilli that increase its surface area, enhancing nutrient absorption.