Heart and Lungs

1. Are the terminal ends of the respiratory tree, which outcrop from either alveolar sacs and alveolar ducts, which are both sites of gas exchange with the blood as well.
6. is one of the two atria of the heart, which function as receiving chambers for blood entering the heart.
7. Flap made of elastic cartilage tissue covered with a mucous membrane, attached to the entrance of the larynx.
8. These arteries that deliver oxygen-depleted blood to each corresponding lung.
9. Are composed of twin infolding of mucous membrane stretched horizontally, from back to front, across the larynx.
10. Are the part of the respiratory system that connect the lungs to the trachea.
13. Its primary roles are to act as a holding chamber for blood returning from the lungs and to act as a pump to transport blood to other areas of the heart.
14. Are the passageways by which air passes through the nose or mouth to the alveoli of the lungs, in which branches no longer contain cartilage or glands in their submucosa.
16. Is a tube that connects the pharynx and larynx to the lungs, allowing the passage of air.

2. One of four chambers of the heart. It is located in the bottom left portion of the heart
3. The chamber within the heart that is responsible for pumping oxygen-depleted blood to the lungs.
4. Forms the boundary between the right ventricle and the right atrium.
5. Originates from the left ventricle of the heart.
8. Are responsible for carrying oxygenated blood from the lungs back to the left atrium of the heart.
11. A wall, dividing a cavity or structure into smaller ones
12. A large vein that carries de-oxygenated blood from the lower body to the heart
15. the part of the throat that is behind the mouth and nasal cavity and above the esophagus and the trachea, or the tubes going down to the stomach and the lungs.