Respiratory system

Question 1

what are the functions of the respiratory system

Answer 1

-As a gas distributor
-Helps regulates blood PH
As a gas exchanger for the
body
- Supplies oxygen to cells
- Removes carbon dioxide
-Filters, warms, and
humidifies the air we
breathe
-Produces sounds for
vocalization

Question 2

what are the major organs of the respiratory system

Answer 2

Nose
Pharynx
Larynx
Trachea
Bronchi
Lungs

Question 3

what is the respiratory system divided in

Answer 3

• Upper respiratory system (nose and pharynx)
• Lower Respiratory system (larynx, trachea, bronchi, and lungs)
• Conducting system – that’s contains interconnecting cavities and tubes both inside
  and outside the lungs

Question 4

what is the Tracheobronchial tree

Answer 4

*Divides in right and left bronchus
*Each bronchus divides in bronchioles
*Bronchioles divide in alveoli

Question 5

what are the 3 parts of respiration

Answer 5

1. Inspiration or inhalation
2. Gas exchange (diffusion)
3. Expiration or exhalation

Question 6

what is the process of gas exchange (diffusion) in the body?

Answer 6

-De-oxygenated blood (not carrying O2) comes from the right side of the heart to the
lungs.
-The pulmonary capillaries come in contact with the alveoli, and gas exchange
occurs.
-Oxygenated blood returns to the left side of the heart

Question 7

what is Hypoxemia

Answer 7

not enough O2 in blood

Question 8

what is Hypoxia

Answer 8

not enough O2 reaching tissues

Question 9

changes with respiratory system with age?

Answer 9

-May lead to SOBOE or dyspnea even at rest
-Skeletal changes
-Hardening of arteries
-Weakened throat muscles
-Weakened vocal cords

Question 10

process of exhalation

Answer 10

1.Diaphram & intercoastal
muscles relax; diaphragm and
ribs return to resting position
2.Lungs contract
3.Air follows the reverse path
i.e. alveoli to nose/mouth
4. Air which is exhaled contains
CO2, other waste products
and water vapor