Respiratory System Flashcard

Front

What is the function of the cricoid cartilage in the respiratory system?

Back

The cricoid cartilage is a ring-shaped structure that provides support and maintains the airway by connecting the larynx to the trachea.

Front

What is the role of the epiglottis during swallowing?

Back

The epiglottis tips to cover the larynx, preventing food from entering the trachea and directing it into the esophagus.

Front

How does the nose contribute to respiratory efficiency?

Back

The nose filters dust and pollen from inhaled air, helping to keep the lungs clear of irritants.

Front

What is the composition of the soft palate?

Back

The soft palate is made of muscle, allowing it to move and close off the nasal passages during swallowing.

Front

What is the function of the uvula?

Back

The uvula prevents food from entering the nasal cavity during swallowing.

Front

What is the primary function of the respiratory system?

Back

The primary function of the respiratory system is to facilitate gas exchange, providing oxygen to the body and removing carbon dioxide.

Front

What are alveoli and their role in the respiratory system?

Back

Alveoli are tiny air sacs in the lungs where gas exchange occurs; they allow oxygen to enter the blood and carbon dioxide to be expelled.

Front

What is the significance of the diaphragm in respiration?

Back

The diaphragm is a muscle that contracts and relaxes to facilitate breathing by changing the pressure in the thoracic cavity.

Front

What is the pathway of air from the nose to the lungs?

Back

Air travels from the nose or mouth, through the pharynx, larynx, trachea, bronchi, and finally to the alveoli in the lungs.

Front

What is the role of cilia in the respiratory system?

Back

Cilia are tiny hair-like structures that line the respiratory tract and help to trap and move mucus and debris out of the airways.