general biology

2. Where the oxygen passes through and into the bloodstream. These are microscopic, balloon-shaped sacs that expand when you inhale and contract when you exhale.
5. The part of the throat that is utilized for talking, swallowing, and breathing and houses the vocal chords.
7. a waste product produced by the body's cells that is transported through the bloodstream to the lungs, where it is then exhaled into the atmosphere
9. Permits the passage of food into the stomach and air into the lungs. Throat is another name for it.
11. refers to the molecule that moves from the air in the lungs into the bloodstream, allowing the body to utilize it for cellular processes
13. A large, dome shaped muscle at the base of the lungs that plays a crucial role in breathing by contracting and flattening to allow the lungs to expand and fill with air.

1. Where oxygen is absorbed from water and carbon dioxide is expelled through specialized structures in these aquatic creatures.
3. The process involving tiny openings on the body surface leading to an intricate network responsible for breathing in these invertebrates.
4. is the process of moving oxygen into the body and carbon dioxide out.
6. Tiny hair like structures on the surface of cells, especially in the respiratory tract, that move rhythmically to help clear mucus and debris from the airways.
8. are extensions of breathing systems, it also increases the efficiency of gas exchange by providing a large surface area
10. Curved bones that form part of the structure protecting vital organs in the chest, including the heart and lungs, and also provide support and shape to the upper body.
12. acts as the conduit to bring air to the site of gas exchange in the alveoli