Unit4- 2.1~ Structure of respiratory system

Question 1

What is the respiratory system?

Answer 1

Consists of the nose, mouth, throat, larynx, trachea, bronchi, bronchioles and lungs. It allows for gas exchange between air and blood

Question 2

What is the function of the nasal cavity?

Answer 2

To humidify and warm the inspired air. It also removes minute aribone particles and other debris from reaching lower airways

Question 3

What is the function of the pharynx (throat)?

Answer 3

A tube like structure that connects the nose and mouth to the larnyx (voice box)

Question 4

What is the function of the larnyx (voice box)?

Answer 4

Routes air and food into the correct channels and has a crucial role in speech production.

Question 5

What is the function of the trachaea (windpipe)?

Answer 5

• A tube that connects the larynx to the bronchi.
• Is lined with cilia (tiny hairs) that sweep upwards moving mucus and unwanted particles out of the lung
• Trachaea splits off to 2 bronchi, which is then split into bronchioles

Question 6

What is the function of bronchioles?

Answer 6

• It ends in tiny air sacs called alveoli
• Gas exchange occurs heres

Question 7

What is the function of the bronchi?

Answer 7

• To carry air to and from the lungs
• Moisturise the air we breathe and screen out foreign particles

Question 8

What is the function of the Alveoli?

Answer 8

Its the centre of the respiratory system gas exchange. It picks up incoming oxygen you breathe in and release the carbon dioxide you exhale

Question 9

What is the role of the diaphragm?

Answer 9

• It seperates your chest from your abdominal cavity
• It helps to get rid of urine and feces by increasing pressure inside the abdomen