Respiratory - Functions & Anatomy

Question 1

Functions of the respiratory system?

Answer 1

• produce sounds
• aid in the sense of smell
• gas exchange
• protects delicate tissue of the lungs (by warming up and humidifying air we breath)

Question 2

What is the cardiac and respiratory system responsible for?

Answer 2

Supplying body with oxygen, and disposing carbon dioxide

Question 3

What happens if cardiac or respiratory system fails?

Answer 3

Oxygen starvation and buildup of carbon dioxide

Question 4

What is the V/Q ratio?

Answer 4

Amount of air that enters and leaves alveoli (ventilation) - for the body to obtain oxygen, there needs to be enough air getting to the alveolar region of the lungs

Amount of blood that flows to the alveolar capillaries (perfusion) - must have enough blood flowing through lungs to pick up oxygen so that it can transport to tissues and organs

Question 5

What is the normal V/Q ratio?

Answer 5

0.8 - amount of air reaching alveoli (ventilation) is slightly less than the amount of perfusion (blood reaching the alveoli)

Question 6

What are the two parts to the respiratory system?

Answer 6

Upper and lower respiratory system

Question 7

What structures does the upper respiratory contain?

Answer 7

• nose
• nasal cavity
• sinuses
• pharynx
• larynx

Question 8

Function of the upper respiratory system?

Answer 8

• filters, warms and humidifies incoming air to protect sensitive epithelial cells in the lungs that can easily become dry and damaged
• reabsorbs heat and water in outgoing air

Question 9

What structures does the lower respiratory system contain?

Answer 9

• trachea
• bronchi
• bronchioles
• alveoli

Question 10

What is the function of the lower respiratory system?

Answer 10

• moves air to gas exchange surfaces
• exchange gases with capillaries