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What is the functional advantage of the alveolar walls being so thin?
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Hyperinflation of alveoli with damage to alveolar walls?
Emphysema
What disease do the alveolar walls break down?
pulmonary embolism
What is emphyzema?
Hyper inflation of air sacs with destruction of alveolar walls.
What is the structure of respiratory membrane?
The respiratory membrane is formed by a combination of the walls of alveoli and walls of capillaries. It consists of type 1 alveolar cells, a basement membrane, capillary endothelium, alveolar epithelium and macrophages.
Loss of elasticity and rupture of alveolar walls are typical problems associated with?
EMPHYSEMA
Scar tissue that replaces the pulmonary alveolar walls is known as pulmonary?
fibrosis
What is characterized anatomically as the permanent abnormal enlargement of distal airway spaces and destruction of the alveolar walls?
Emphysema. The alveolar walls are destroyed and replaced with scar tissue, which cannot allow diffusion of oxygen from the alveolus to the capillary. It cannot be reversed.
With which disorder do the alveolar walls lose their elasticity become over-inflated and eventually rupture?
Emphysema
What is the medical term meaning hyperinflation of air sacs with destruction of alveolar walls?
Emphysema or Pulmonay emphysema
The respiratory membrane is a combination of?
alveolar and capillary walls and their fused basement membranes
What is the function of simple squamous epithelium of the alveoli?
The alveoli is just one cell layer thick so that diffusion of gasses between the capillaries and the alveoli is easy. Simple squamous epithelium are found in the capillary walls and the alveolar walls. They are thin so diffusion is easy.
The smallest of the air distribution tubes in the respiratory tract are the?
—Bronchi, bronchioles and alveoli - looks like an upside down tree.◦Trachea is the main trunk that divides into◦Right bronchus and left bronchus. As the bronchi enter the lungs they divide into smaller and smaller branches.◦The smallest tubes whose walls are made only of smooth muscle are called bronchioles.◦Bronchioles further divide into microscopic tubes called alveolar ducts which resemble the main stem of a bunch of grapes.◦Alveolar ducts end in several alveolar sacs arranged like a clusters of grapes.◦The walls of the alveolar sacs are made up of numerous alveoli each of which resembles a single grape.
