Respiratory System

Which of the following is the main function of the respiratory system?

• Obtains oxygen and remove carbon dioxide from the body

• Transports oxygen and nutrients to the body cells

• Protects the body from invading organisms

Which of the following is the correct pattern of airflow inhalation?

• NASAL CAVITY-PHARYNX-TRACHEA-BRONCHI-BRONCHIOLES-LUNGS

• NASAL CAVITY-PHARYNX-ALVEOLI-BRONCHI-BRONCHIOLES-LUNGS

• NASAL CAVITY-THROAT-LARYNX-WINDPIPE-BRONCHI-LUNGS

Which of the following is the main muscle for breathing?

• Intercostal Muscle

• Diaphragm

• Sternocleidomastoid

Aside from being part of the respiratory way, what is the other function of the larynx?

• It has a small tissue called epiglottis that directs the food to the esophagus.

• It contains the tissues where the gas exchange happens.

• It contains the vocal cord that allows the body to produce sound.

During inhalation, contraction of the diaphragm and the intercostal muscle cause the  lung /thoracic cavity to __________ and the air pressure in lungs to _____________.

• Contract; Decrease

• Expand: Increase

• Contract; Increase

What is the anatomically correct name of the windpipe?

• Pharynx

• Larynx

• Trachea

Which of the following is the function of alveoli in respiration?

• Helping the lungs to stay inflated

• Gaseous exchange

• Relaxation

Which of the following structures is NOT part of the upper respiratory tract?

• lungs

• epiglottis

• pneumothorax

It is the network of organs and tissues that help you breathe.

• digestive system

• nervous system

• circulatory system

• respiratory system

Openings that pull air from outside your body into your respiratory system.

• sinuses

• mouth and nose

• bronchial tubes

• lungs