respiratory system

The two openings of the airway (the nasal cavity and the mouth) meet at the larynx

• FACT

• BLUFF

The size of the chest cavity decreases when we take in air and increases when we give off.

• FACT

• BLUFF

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.

When vocal cords are long and relaxed, they produce high notes

• FACT

• BLUFF

When the diaphragm and intercostal muscles contract during expiration, the lung volume is reduced

• FACT

• BLUFF

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 function of alveoli in respiration?

• Helping the lungs to stay inflated

• Gaseous exchange

• Relaxation

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

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