Functions of the Respiratory System

The video tutorial provides an in-depth look at the respiratory system, focusing on its structure and function. It covers the upper and lower respiratory tracts, detailing components like the nasal cavity, larynx, trachea, and bronchi. The tutorial explains the anatomy of the nasal cavity, including the septum and turbinates, and discusses the role of the olfactory mucosa in smell. It also addresses the coordination between breathing and eating, highlighting the function of the epiglottis and soft palate in preventing food from entering the airway. Finally, the video explores the larynx and vocal cords, explaining their role in vocalization and the process of intubation.

What is the primary goal of the respiratory system?

• To circulate blood

• To exchange gases with the blood

• To digest food

• To produce sound

Which part of the upper respiratory tract is made of cartilage and is flexible?

• Anterior portion of the nose

• Pharynx

• Nasal sinuses

• Nasal septum

What is the function of nasal turbinates?

• To produce mucus

• To connect the nasal cavity to the throat

• To create turbulence for warming, humidifying, and cleaning air

• To support the nasal septum

What is one theory about the function of nasal sinuses?

• They lighten the head and add resonance to the voice

• They produce hormones

• They help in digestion

• They filter blood

What prevents food from entering the nasal cavity during swallowing?

• Nasal septum

• Vocal cords

• Soft palate

• Epiglottis

What is the role of the epiglottis during swallowing?

• To produce sound

• To protect the airway by covering the opening

• To aid in digestion

• To humidify the air

Which bone is unique to the neck and associated with the larynx?

• Hyoid bone

• Nasal bone

• Mandible

• Clavicle

What is the function of the vocal folds?

• To aid in swallowing

• To protect the nasal cavity

• To produce sound

• To filter air

What is the difference between true and false vocal cords?

• True vocal cords are pink, false are white

• True vocal cords produce sound, false do not

• False vocal cords are used for breathing, true are not

• False vocal cords are located in the nasal cavity

Why is it important to identify the true vocal cords during intubation?

• To ensure the airway is not obstructed

• To ensure the tube is placed in the esophagus

• To avoid damaging the nasal cavity

• To prevent sinusitis