Unit 1: Marathon Runner Exam Review

Front

What are Negative Feedback Loops?

Back

Negative feedback loops are processes that counteract a change to bring a system back to its normal set values.

Front

Which system is responsible for providing oxygen to cells?

Back

The circulatory system is responsible for providing oxygen to cells.

Front

What is the relationship between the muscular system and the circulatory system?

Back

The circulatory system delivers oxygen for muscle energy.

Front

Where does most absorption of nutrients take place in the digestive system?

Back

Most absorption of nutrients takes place in the small intestine.

Front

What are alveoli?

Back

Alveoli are microscopic sacs in the lungs where gas exchange of oxygen and carbon dioxide takes place.

Front

What is the primary function of the respiratory system?

Back

The primary function of the respiratory system is to facilitate gas exchange, providing oxygen to the body and removing carbon dioxide.

Front

What role does the circulatory system play in the body?

Back

The circulatory system transports nutrients, gases, hormones, and waste products to and from cells throughout the body.

Front

What is the function of red blood cells?

Back

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

Front

What is the main purpose of the muscular system?

Back

The main purpose of the muscular system is to facilitate movement of the body and maintain posture.

Front

How do the lungs contribute to the respiratory system?

Back

The lungs are the primary organs of the respiratory system, where oxygen is absorbed and carbon dioxide is expelled.