Location and Function
What is the main muscle responsible for breathing?
Diaphragm
What is the site of gaseous exchange?
Alveoli (ducts)
This condition is managed primarily with inhalers
Asthma
Can your lungs float on water?
Yes
What is the technical term for breathing out?
Expiration/exhalation
Which structure have odd-shaped cartilage?
Bronchi/bronchus
What does COPD stand for?
Chronic Obstructive Pulmonary Disease
Are your lungs the same size? If not, say which is smaller and explain why.
no, left lung is smaller to make room for heart
Name the tube that carries air from the throat to the lungs
Trachea
Name the two cells that sweep and produces mucus
Ciliated cell & Goblet cell
This condition is caused by genetic mutation, this disease results in thick, sticky mucus that clogs airways and leads to chronic lung infections.
Cystic Fibrosis
What are the limitations of living with only one lung?
physical activity conducted must be less intense
what pigment in red blood cells carries oxygen?
Haemoglobin
Name the specialised cells within the respiratory system that produces collagen
Chondrocytes
In cystic fibrosis, what type of cell is responsible for secreting the excessive, sticky mucus that clogs the airways?
Goblet cells
What type of cells make up the respiratory membrane at the alveoli?
1 layer of flat simple squamous cells
Name 2 adaptations alveoli have for their job
thin walls, constant supply of blood, moist lining, large surface area, elastic fibres
How does damage to the lungs result in hypertension(high blood pressure)?
Heart works harder to pump oxygenated blood and wears itself out
Name 2 symptoms of Asthma and explain why it happens.
Symptoms : Shortness of breath, chest tightness and constant coughing
- Due to inflamed airways
Why is the first breath of a newborn the most difficult?
lack of surfactant, and the lungs are not inflated while in the womb