Alveoli are surrounded by capillaries so that the oxygen can diffuse into the blood and carbon dioxide can diffuse out. I think it depends on the shape of the alveoli to the path of the capillary.
16-20 rings!
The trachea is a tube made of c-shaped rings of cartilage. This structure gives it flexible but strong support.
in the trachea
The trachea is a tube made of c-shaped rings of cartilage. This structure gives it flexible but strong support.
Trachea is bounded by c-shaped ring to provide it support and flexibility
C shaped so that it can expand
The C-shaped rings that support the wall of the trachea are made out of hyaline cartilage. These rings help maintain the structure and prevent collapse of the trachea during breathing.
C-shaped cartilage rings hold open the trachea and the bronchi to prevent them from collapsing when dynamic compression of bronci occurs during exhalation.
no
Cartilaginous rings
Trachea has a C-shaped cartilaginous ring.
Yes, the C-shaped cartilage rings maintain the openness of the trachea. The rings provide structural support to the trachea, preventing it from collapsing and maintaining its shape. The open ends of the C-shape allow for flexibility during movement, such as swallowing or bending of the neck.