Human Body Systems

What is the function of the digestive system? What is the main organ it includes?

• To break down food; the main organ is the stomach

• To absorb nutrients; the main organ is the liver

• To filter blood; the main organ is the kidney

• To produce hormones; the main organ is the pancreas

What is the main function of the circulatory system?

• To transport blood, nutrients, and oxygen throughout the body.

• To digest food and absorb nutrients.

• To provide structural support to the body.

• To facilitate gas exchange in the lungs.

What is an organ system?

• A group of organs that work together to perform complex functions for the body.

• A single organ that performs a specific function.

• A collection of tissues that form a protective barrier.

• A network of cells that transmit signals throughout the body.

What are tissues?

• Groups of similar cells that work together to perform a specific function.

• Individual cells that function independently.

• Collections of different types of cells that do not interact.

• Fluid that circulates in the body to transport nutrients.

What is homeostasis?

• The process by which the body maintains a stable internal environment.

• A method of increasing body temperature during cold weather.

• A technique for improving physical fitness.

• The ability to adapt to external environmental changes.

What is the function of the nervous system? What is the main organ it includes?

• To send and receive messages; the heart

• To regulate body temperature; the lungs

• To send and receive messages; the brain

• To digest food; the stomach

What is the correct order of the levels of organization from smallest and most simple to largest and most complex?

• tissue, cell, organ, organ system

• cell, tissue, organ, organ system

• organ system, organ, tissue, cell

• organ, tissue, cell, organ system

How do the respiratory and circulatory systems work together?

• The respiratory system brings in oxygen, and the circulatory system moves it around.

• The circulatory system brings in carbon dioxide, and the respiratory system moves it around.

• The respiratory system filters blood, and the circulatory system absorbs oxygen.

• The circulatory system transports nutrients, while the respiratory system removes waste.

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

• To facilitate the exchange of oxygen and carbon dioxide.

• To filter and purify the blood.

• To produce hormones related to metabolism.

• To store excess oxygen for later use.

What is the function of the skeletal system?

• To provide structure, support, and protection for the body.

• To facilitate digestion and nutrient absorption.

• To regulate body temperature and maintain homeostasis.

• To produce hormones and regulate metabolism.