A student was asked to compare the features seen on four microscope slides of sections from different regions of the gas exchange system. slide 1 lacks cartilage and glands has few goblet cells, ciliated epithelial cells and smooth muscle slide 2 contains incomplete cartilage rings, glands, goblet cells, ciliated epithelial cells and smooth muscle slide 3 lacks cartilage, glands, goblet cells and smooth muscle has squamous epithelial cells slide 4 contains plates of cartilage, glands, goblet cells, ciliated epithelial cells and smooth muscle Which is the correct identification of the parts of the gas exchange system?
- Aslide 1 alveolus, slide 2 bronchiole, slide 3 bronchus, slide 4 trachea
- Bslide 1 bronchiole, slide 2 bronchus, slide 3 alveolus, slide 4 trachea
- Cslide 1 bronchiole, slide 2 trachea, slide 3 alveolus, slide 4 bronchus
- Dslide 1 bronchus, slide 2 trachea, slide 3 bronchiole, slide 4 alveolus