Exploring the Respiratory and Circulatory Systems

What is the main focus of today's lesson?

• Nervous and Endocrine Systems

• Photosynthesis and Respiration

• Respiratory and Circulatory Systems

• Digestive and Excretory Systems

Which organ is responsible for breathing?

• Lungs

• Kidneys

• Liver

• Heart

What is the function of the trachea?

• Produces vocal sounds

• Filters the air we breathe

• Connects the larynx to the bronchi

• Pumps blood to the lungs

Which part of the respiratory system is responsible for gas exchange?

• Larynx

• Nasal cavity

• Alveoli

• Pharynx

What is the main function of the circulatory system?

• Produce hormones

• Filter waste products

• Digest food

• Transport nutrients and gases

Which blood vessel returns blood to the heart from the lower part of the body?

• Pulmonary vein

• Aorta

• Inferior vena cava

• Superior vena cava

What prevents the mixing of oxygenated and deoxygenated blood in the heart?

• Valves

• Septum

• Ventricle

• Atrium

How do the respiratory and circulatory systems work together?

• By digesting food

• By circulating blood and oxygen

• By producing hormones

• By filtering waste products

What happens to carbon dioxide in the bloodstream?

• It is converted to oxygen

• It is transported to the lungs for exhalation

• It is used to produce energy

• It is stored in the liver

Tags

NGSS.MS-LS2-3

What should you do after learning the concepts in today's lesson?

• Take a break

• Read a book

• Watch another video

• Answer the activity on page 21