What is an organ?

This anatomy tutorial by Joao explores the concept of organs, starting with a basic introduction to anatomy. It defines an organ as a group of tissues adapted to perform specific functions. The tutorial provides examples of organs like the heart, liver, and skin, and explains how these organs form systems such as the digestive and nervous systems. The video concludes with a recap of the hierarchy from cells to organ systems.

What is the main challenge discussed in defining the term 'organ'?

• It is not commonly used in schools.

• It is often confused with musical instruments.

• It is not relevant to anatomy.

• It seems simple but is complex to define.

According to the tutorial, how is an organ officially described?

• A single type of tissue performing multiple functions.

• A group of tissues adapted to perform a specific function.

• A system of organs working together.

• A collection of cells with no specific function.

Which of the following is NOT mentioned as an organ in the tutorial?

• Heart

• Liver

• Kidneys

• Brain

What surprising fact about the skin is mentioned in the tutorial?

• It is not considered an organ.

• It is the smallest organ in the body.

• It is the largest organ of the human body.

• It is made up of only one type of tissue.

Which type of tissue is NOT mentioned as part of the stomach?

• Nervous tissue

• Muscular tissue

• Glandular tissue

• Epithelial tissue

What is the relationship between organs and organ systems?

• Organs are smaller than tissues.

• Organ systems are made up of groups of organs.

• Organs function independently of systems.

• Organ systems are a type of tissue.

What is the correct order from smallest to largest unit in the body?

• Organs, cells, tissues, systems

• Cells, tissues, organs, systems

• Systems, organs, tissues, cells

• Tissues, cells, organs, systems