respiratory organs

1. Which organ is responsible for the exchange of oxygen and carbon dioxide in the body?

• LIVER

• HEART

• LUNGS

• STOMACH

1. What is the primary function of the trachea?

• • To transport blood

• • To filter toxins

• • To carry air to the lungs

• • To digest food

1. Which tiny air sacs in the lungs are responsible for gas exchange with the blood?

• • Alveoli

• • Bronchi

• • Larynx

• Diaphragm

Which structure in the respiratory system contains the vocal cords and is responsible for voice production?

• • Larynx

• • Bronchi

• • Alveoli

• • Trachea

1. What is the primary muscle responsible for breathing during normal quiet respiration?

• • Diaphragm

• • Abdominal muscles

• • Pectoral muscles

• • Intercostal muscles

1. What is the purpose of the mucus-producing cells in the respiratory tract?

• • To produce carbon dioxide

• • To regulate airflow

• • To produce oxygen

• • To trap dust and foreign particles

Which lung is smaller in size?

• left

• right

• left-right

• both

___________is a bio-chemical process

Humans use _____________ to breathe.

Respiration happens at ________________level .