Respiratorisches System

The video provides a comprehensive overview of the respiratory system, detailing its main structures and functions. It covers the upper and lower respiratory tracts, including the nasal and oral cavities, trachea, bronchi, and lungs. The roles of respiratory muscles, both main and auxiliary, are explained, along with accessory structures like the nasal passages and tongue. Clinically relevant facts about respiratory diseases such as asthma and COPD are also discussed.

What is the primary function of the respiratory system?

• To digest food

• To supply oxygen and remove carbon dioxide

• To circulate blood

• To produce hormones

Which structure is NOT part of the upper respiratory tract?

• Pharynx

• Trachea

• Oral cavity

• Nasal cavity

What is the main role of the alveoli in the respiratory system?

• To exchange gases

• To filter air

• To conduct air

• To produce mucus

What is the main function of the bronchioles?

• To produce mucus

• To conduct air to and from the alveoli

• To exchange gases

• To filter blood

Which muscle is primarily responsible for the expansion of the thoracic cavity during inhalation?

• Diaphragm

• Trapezius

• Quadriceps

• Biceps

What is the role of the pleural fluid in respiration?

• To filter blood

• To produce sound

• To transmit movements between the thorax and lungs

• To digest food

Which muscle group assists in breathing during increased metabolic demand?

• Leg muscles

• Facial muscles

• Auxiliary respiratory muscles

• Abdominal muscles

What is the function of the nasal conchae?

• To increase turbulence in inhaled air

• To digest food

• To produce sound

• To secrete hormones

Which condition is characterized by reversible airway obstruction?

• COPD

• Pickwick syndrome

• Asthma

• Pulmonary fibrosis

Which structure prevents food from entering the lower respiratory tract?

• Alveoli

• Bronchi

• Trachea

• Epiglottis