Health&SocialCare: 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 nose and mouth?

Answer 2

• They’re the main external openings allowing for air to enter
• Nose is adapted for breathing air as it has hairs and mucus to filter, warm and moisten incoming air

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?

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

Explain the process of diffusion?

Answer 7

The seperating wall between the alveoli and capillaries is thin, allowing oxygen and Co2 to move across the wall easily

Question 8

What is the function of the lungs during respiration?

Answer 8

• Located on either side of chest cavity
• Lung is covered by pleural membrane, providing lubrication to reduce friction between lungs and chest wall
• Lungs associated with the diaphragm muscle, allowing process of inhalation and exhalation.